taxonID	type	description	language	source
195BB83EFFADFFC1FCA296FD41522EE5.taxon	description	Class Actinopterygii Klein, 1885 Order Osteoglossiformes Berg, 1940 Family Mormyridae Bonaparte, 1831 Subfamily Mormyrinae Bonaparte, 1831 Genus Pollimyrus Taverne, 1971 Pollimyrus Taverne, 1971: 140 (type species: Mormyrus isidori Valenciennes, 1847, by original designation). Pollimyrus ibalazambai sp. nov. Zoobank registration: urn: lsid: zoobank. org: act: EA 58 D 11 A-D 2 BB- 43 E 4 - 982 B- 4 A 461985 C 857 Figures 8 and 9; Tables 6 and 7. Thick-tailed group Morphological group Pollimyrus brevis Pollimyrus castelnaui Pollimyrus guttatus Pollimyrus marianne Syntype (n = 2) Syntype (n = 2) Paratype (n = 3) All Paratype (n = 10) All Species Min Max Mean Min Max Mean Holotype Min Max Mean Holotype Min Max Mean Standard length 50.2 54.0 52.1 58.3 Measurements in % SL Total length 115.4 117.0 116.2 112.6 Body depth 29.1 32.1 30.6 29.5 Pre-dorsal length 67.4 67.5 67.5 66.0 Pre-anal length 62.3 64.5 63.4 60.1 Pre-pectoral length 27.2 28.4 27.8 25.9 Pre-pelvic length 42.6 45.1 43.8 41.4 Length of dorsal fin 19.1 20.4 19.8 18.3 Length of anal fin 24.3 24.4 24.4 23.4 Length of pectoral fin 20.5 22.9 21.7 20.7 Length of pelvic fin 11.1 11.3 11.2 9.7 Posterodorsal distance 35.7 38.3 37.0 38.1 Pectoral – pelvic distance 16.2 21.4 18.8 17.1 Caudal peduncle length 15.2 15.2 15.2 16.4 Caudal peduncle depth 7.1 8.0 7.5 6.8 Belly length 18.7 20.9 19.8 19.6 Head length 24.6 24.9 24.7 22.4 Measurements in % HL Head width 58.5 60.2 59.4 53.8 Snout – posterior side of eye 44.3 44.7 44.5 42.3 Snout – center of eye 34.4 38.0 36.2 33.0 Internasal length 9.7 10.9 10.3 10.1 Eye diameter 18.8 19.0 18.9 18.6 Lower-jaw width 23.5 25.7 24.6 21.7 Upper-jaw width 19.1 22.2 20.7 18.0 Snout length 14.3 15.1 14.7 11.9 Interorbital width 39.2 44.6 41.9 38.1 Postorbital length 61.3 63.5 62.4 60.3 Measurements (other %) 62.5 60.4 39.5 36.3 39.2 38.0 63.9 113.9 113.2 123.6 115.6 119.6 118.8 113.1 31.2 30.4 31.2 30.7 32.1 31.2 24.3 66.1 66.0 65.3 65.0 66.4 65.4 64.1 62.4 61.2 65.7 62.2 65.8 64.4 58.0 26.1 26.0 29.0 28.0 29.8 29.0 25.0 42.2 41.8 43.7 43.7 45.7 44.5 40.5 19.5 18.9 22.1 19.8 22.0 21.3 18.4 25.3 24.3 27.1 25.0 25.8 25.9 24.5 21.0 20.8 26.1 23.2 25.4 24.9 22.2 9.7 9.7 10.9 9.5 11.1 10.6 10.8 38.8 38.5 42.0 38.9 41.0 40.4 39.9 19.1 18.1 17.0 17.9 19.6 18.2 15.7 16.9 16.7 18.1 16.2 17.9 17.5 20.5 7.4 7.1 6.8 7.0 7.2 7.0 7.3 20.7 20.1 19.4 18.4 19.0 18.9 17.9 23.1 22.7 24.6 23.9 26.4 25.3 22.5 54.1 54.0 43.4 51.2 52.4 49.7 58.6 46.1 44.2 48.5 42.1 46.5 45.3 39.5 36.3 34.6 34.8 28.3 33.2 31.7 29.0 10.1 10.1 11.1 8.9 9.6 9.7 8.3 19.9 19.2 25.1 22.1 27.3 24.6 18.0 22.1 21.9 14.2 15.5 17.3 15.9 18.8 19.4 18.7 14.2 13.9 15.6 14.5 18.2 13.4 12.7 13.7 12.1 13.3 13.1 14.7 41.5 39.8 39.5 33.9 43.5 39.7 32.2 63.0 61.6 56.6 55.8 58.7 56.8 62.8 57.9 111.4 23.7 61.2 56.6 24.3 38.9 18.3 23.6 19.7 9.5 39.8 15.3 17.2 6.6 17.0 21.5 58.4 41.4 31.9 8.6 17.7 14.6 16.8 12.9 32.5 53.3 66.6 118.1 27.0 65.5 59.7 26.4 41.2 20.1 26.5 23.5 11.1 43.7 17.0 19.9 7.4 19.1 23.3 61.4 45.8 36.3 10.2 21.9 18.0 19.8 15.8 40.5 62.1 63.0 113.7 25.1 63.4 57.9 25.4 40.0 18.9 24.5 21.5 10.6 41.2 15.9 19.0 6.9 18.1 22.3 59.8 42.9 33.6 9.3 19.8 16.6 18.2 14.0 36.8 60.5 (Continues) T A B L E 6 (Continued) Thick-tailed group Morphological group Pollimyrus brevis Pollimyrus castelnaui Pollimyrus guttatus Pollimyrus marianne Syntype (n = 2) Syntype (n = 2) Paratype (n = 3) All Paratype (n = 10) All Species Min Max Mean Min Max Mean Holotype Min Max Mean Holotype Min Max Mean Caudal peduncle depth (% BD) 22.2 27.4 24.8 22.9 Caudal peduncle depth (% CPL) 46.8 52.5 49.7 41.2 Anal-fin length (% LD) 119.2 127.7 123.5 127.7 23.6 23.2 21.7 22.0 23.3 22.4 30.1 43.5 42.4 37.3 39.4 40.0 38.9 35.8 130.0 128.9 123.1 116.7 130.3 121.7 133.4 24.4 33.4 121.7 29.3 39.6 140.1 27.5 36.4 129.6 Thick-tailed group Morphological groups Pollimyrus stappersii Pollimyrus stappersii Pollimyrus petricolus stappersii Pollimyrus krameri sp. nov. Pollimyrus weyli sp. nov. kapangae Paratype (n = 3) All All All Paratype Paratype Species Holotype Min Max Mean Holotype Holotype Holotype (n = 1) Mean Holotype (n = 1) Mean Standard length 87.9 50.3 85.1 69.0 Measurements in % SL Total length 109.7 113.6 114.9 113.1 Body depth 22.2 22.5 25.7 23.6 Pre-dorsal length 60.3 61.5 64.0 62.1 Pre-anal length 58.5 59.6 61.6 60.1 Pre-pectoral length 24.0 23.6 27.3 25.5 Pre-pelvic length 38.4 39.7 43.3 41.2 Length of dorsal fin 24.9 21.4 24.0 23.5 Length of anal fin 24.3 21.3 23.6 23.0 Length of pectoral fin 15.5 18.5 19.2 18.0 Length of pelvic fin 8.6 9.5 10.8 9.9 Posterodorsal distance 41.8 38.7 41.2 40.3 Pectoral – pelvic distance 16.4 17.1 18.5 17.4 Caudal peduncle length 15.1 15.4 16.2 15.7 Caudal peduncle depth 6.4 5.7 6.8 6.4 Belly length 20.4 18.5 22.1 19.9 Head length 22.1 22.1 25.8 23.9 61.6 59.3 45.6 48.7 47.1 112.7 116.6 112.9 117.4 115.1 27.9 27.1 26.7 25.3 26.0 66.9 68.8 66.8 67.9 67.3 61.6 63.5 60.6 62.2 61.4 26.3 26.8 26.6 26.6 26.6 41.8 43.5 40.7 43.2 41.9 20.2 17.3 17.3 17.5 17.4 24.8 22.9 24.5 23.1 23.8 20.6 19.9 20.5 19.2 19.9 10.9 10.6 10.8 10.5 10.7 38.7 37.5 37.0 36.8 36.9 17.0 18.9 16.7 18.5 17.6 16.7 17.9 16.8 18.0 17.4 6.1 5.9 7.9 7.9 7.9 20.8 21.6 19.5 19.7 19.6 23.7 23.8 24.8 25.2 25.0 51.4 110.3 29.6 66.8 59.4 26.4 42.0 18.8 22.5 18.1 9.7 37.6 18.5 16.7 6.9 18.2 23.5 49.1 115.1 29.9 70.4 62.6 27.3 45.1 18.1 20.2 19.6 10.8 37.6 20.3 18.0 7.1 17.5 25.5 50.3 112.7 29.7 68.6 61.0 26.8 43.5 18.4 21.4 18.8 10.2 37.6 19.4 17.4 7.0 17.8 24.5 T A B L E 6 (Continued) Thick-tailed group Morphological groups Pollimyrus stappersii Pollimyrus stappersii Pollimyrus petricolus stappersii Pollimyrus krameri sp. nov. Pollimyrus weyli sp. nov. kapangae Paratype (n = 3) All All All Paratype Paratype Species Holotype Min Max Mean Holotype Holotype Holotype (n = 1) Mean Holotype (n = 1) Mean Measurements in % HL Head width 47.6 45.3 47.0 46.6 Snout – posterior side of eye 43.6 42.4 45.9 43.6 Snout – center of eye 33.2 31.6 33.0 32.7 Internasal length 7.5 7.4 8.1 7.7 Eye diameter 21.6 22.4 23.7 22.8 Lower-jaw width 15.1 13.8 16.1 15.0 Upper-jaw width 15.9 14.8 18.2 16.7 Snout length 13.9 11.9 13.4 12.8 Interorbital width 26.6 25.3 33.1 29.3 Postorbital length 58.0 55.3 58.5 56.8 Measurements (other %) Caudal peduncle depth (% 28.8 25.4 27.9 27.1 BD) Caudal peduncle depth (% 42.3 37.2 42.1 40.8 CPL) Anal-fin length (% LD) 97.4 95.7 99.6 97.8 54.0 52.7 53.8 52.7 53.2 44.3 44.5 39.7 39.4 39.6 35.1 34.3 31.8 32.2 32.0 9.8 9.4 8.2 9.1 8.7 18.0 16.9 15.5 14.3 14.9 17.9 18.3 14.7 16.2 15.4 16.6 18.2 19.7 19.5 19.6 14.0 12.3 13.5 13.5 13.5 40.2 37.6 31.7 33.1 32.4 61.5 62.3 64.2 60.9 62.6 21.8 21.9 23.4 23.4 23.4 33.2 36.5 47.3 43.7 45.5 132.1 122.7 141.6 132.0 136.8 58.7 43.5 36.5 11.0 18.9 19.1 24.5 14.7 40.9 60.5 23.4 41.4 120.0 55.2 39.6 33.1 9.6 17.1 17.1 22.6 13.7 37.2 62.5 23.8 39.6 111.6 56.9 41.6 34.8 10.3 18.0 18.1 23.5 14.2 39.1 61.5 23.6 40.5 115.8 Slender-tailed group Morphological group Pollimyrus adspersus Pollimyrus maculipinnis Cyphomyrus plagiostoma Pollimyrus osborni Pollimyrus pedunculatus Syntype (n = 2) All Syntype (n = 2) Species Min Max Mean Holotype Paratype (n = 1) Mean Holotype Holotype Min Max Mean Standard length 57.9 58.9 58.4 52.9 Measurements in % SL Total length 116.6 119.7 118.2 109.9 Body depth 30.2 31.7 30.9 30.6 Pre-dorsal length 63.4 63.9 63.6 64.6 Pre-anal length 55.0 57.0 56.0 56.6 Pre-pectoral length 24.5 25.9 25.2 26.9 53.9 53.4 53.0 67.7 117.4 113.6 118.2 118.4 31.5 31.1 33.9 27.0 65.0 64.8 64.3 58.6 60.0 58.3 58.3 52.1 26.3 26.6 25.4 21.0 88.4 119.2 31.8 54.7 55.7 23.5 100.2 120.5 34.6 58.5 57.8 24.8 94.3 119.9 33.2 56.6 56.8 24.2 (Continues) T A B L E 6 (Continued) Slender-tailed group Morphological group Pollimyrus adspersus Pollimyrus maculipinnis Cyphomyrus plagiostoma Pollimyrus osborni Pollimyrus pedunculatus Syntype (n = 2) All Syntype (n = 2) Species Min Max Mean Holotype Paratype (n = 1) Mean Holotype Holotype Min Max Mean Pre-pelvic length 36.0 36.7 36.4 41.1 Length of dorsal fin 21.9 24.1 23.0 19.0 Length of anal fin 28.7 30.4 29.5 30.2 Length of pectoral fin 22.8 24.6 23.7 19.8 Length of pelvic fin 10.0 10.6 10.3 10.6 Posterodorsal distance 42.1 44.3 43.2 41.0 Pectoral – pelvic distance 16.7 17.0 16.8 17.5 Caudal peduncle length 17.8 18.1 17.9 18.8 Caudal peduncle depth 5.9 6.0 5.9 6.0 Belly length 16.9 19.2 18.1 16.1 Head length 23.2 23.5 23.3 25.3 Measurements in % HL Head width 51.1 51.9 51.5 55.8 Snout – posterior side of eye 45.9 49.8 47.8 49.3 Snout – center of eye 34.5 37.7 36.1 36.6 Internasal length 8.8 9.5 9.2 7.7 Eye diameter 25.0 27.6 26.3 28.7 Lower-jaw width 15.1 16.6 15.8 18.2 Upper-jaw width 15.1 16.0 15.6 17.7 Snout length 10.5 11.8 11.1 14.4 Interorbital width 36.9 40.8 38.9 41.2 Postorbital length 56.8 59.5 58.1 58.5 Measurements (other %) Caudal peduncle depth (% BD) 18.9 19.5 19.2 19.4 Caudal peduncle depth (% CPL) 33.1 33.2 33.2 31.7 Anal-fin length (% LD) 118.8 139.0 128.9 158.6 42.7 41.9 42.2 34.3 19.5 19.3 21.1 25.0 28.2 29.2 28.9 28.9 22.0 20.9 23.1 20.9 10.5 10.5 10.8 7.0 41.6 41.3 41.8 46.9 19.3 18.4 18.4 16.5 16.9 17.9 19.3 22.8 6.4 6.2 6.1 4.7 18.9 17.5 18.5 15.4 25.3 25.3 23.7 20.1 49.5 52.6 57.5 49.4 46.5 47.9 48.8 44.4 33.7 35.2 37.7 32.6 6.8 7.3 9.8 9.2 27.1 27.9 27.5 19.3 17.3 17.8 18.3 16.5 14.7 16.2 14.4 18.3 10.9 12.7 14.4 13.0 39.0 40.1 43.8 40.0 57.1 57.8 53.6 56.9 20.2 19.8 18.1 17.3 37.6 34.7 31.8 20.6 144.5 151.6 136.7 115.8 36.3 34.4 26.5 20.8 12.5 51.4 16.7 18.8 4.2 19.9 21.4 47.7 43.8 35.7 7.2 19.1 16.6 13.9 18.7 37.0 53.5 13.3 19.5 73.3 37.6 37.9 27.8 22.3 13.4 52.8 17.0 21.7 4.8 20.5 22.2 54.5 45.4 36.7 7.8 19.3 16.8 18.3 22.0 37.3 56.9 13.9 25.6 76.9 37.0 36.1 27.1 21.5 12.9 52.1 16.9 20.2 4.5 20.2 21.8 51.1 44.6 36.2 7.5 19.2 16.7 16.1 20.4 37.1 55.2 13.6 22.5 75.1 T A B L E 6 (Continued) Slender-tailed group Morphological group Pollimyrus pulverulentus Pollimyrus ichreyeni Pollimyrus ibalazambai sp. nov. Syntype (n = 16) Paratype (n = 3) All Paratype (n = 20) All Species Min Max Mean Holotype Min Max Mean Holotype Min Max Mean Standard length 61.3 114.3 82.1 Measurements in % SL Total length 114.0 128.3 118.5 Body depth 28.2 35.8 31.1 Pre-dorsal length 61.8 67.3 65.2 Pre-anal length 57.2 64.9 60.8 Pre-pectoral length 26.6 30.2 28.9 Pre-pelvic length 37.4 42.9 40.5 Length of dorsal fin 18.5 25.4 22.9 Length of anal fin 27.1 30.8 28.8 Length of pectoral fin 23.2 26.7 25.0 Length of pelvic fin 9.9 12.4 11.4 Posterodorsal distance 38.7 42.9 40.6 Pectoral – pelvic distance 14.0 17.6 15.5 Caudal peduncle length 13.6 18.1 16.0 Caudal peduncle depth 3.9 5.4 4.7 Belly length 18.1 24.7 21.5 Head length 23.5 27.7 25.7 Measurements in % HL Head width 47.5 54.7 50.4 Snout – posterior side of eye 44.7 53.8 48.3 Snout – center of eye 32.4 43.8 37.0 Internasal length 6.8 9.1 8.1 Eye diameter 17.5 25.3 22.8 Lower-jaw width 14.2 20.8 17.2 Upper-jaw width 15.0 21.5 17.6 Snout length 9.8 19.9 16.3 Interorbital width 29.8 39.1 34.7 Postorbital length 49.7 58.0 55.1 Measurements (other %) 70.5 71.3 75.8 72.7 70.2 112.7 108.9 113.7 111.8 118.5 31.1 29.2 30.2 30.1 33.6 65.7 60.0 66.1 64.2 62.3 52.7 53.4 56.8 54.3 56.7 25.4 23.8 25.7 25.0 24.9 36.6 36.0 37.5 36.7 39.7 15.2 15.4 16.2 15.7 20.5 35.3 34.7 35.4 35.2 30.0 22.1 22.7 26.2 23.6 25.6 10.0 9.3 10.3 9.9 9.5 39.7 40.0 42.6 40.7 43.4 13.4 13.4 14.9 14.0 18.5 15.1 16.2 17.8 16.3 17.4 4.5 4.3 4.8 4.5 5.4 18.0 17.5 20.7 18.9 18.1 21.5 20.0 20.5 20.6 22.1 50.8 51.7 58.1 53.2 55.7 46.5 46.5 49.7 47.5 44.7 35.7 37.0 38.3 37.1 36.6 7.6 7.8 8.9 8.3 8.8 22.3 24.2 26.0 24.2 26.0 16.4 14.6 16.9 15.9 14.7 14.9 14.7 15.7 15.2 17.2 14.7 14.9 15.6 15.2 16.0 37.0 34.2 43.6 38.5 40.5 56.2 53.2 62.1 57.0 55.3 64.6 113.3 27.4 60.3 55.5 22.5 37.0 20.4 28.1 23.1 8.4 40.3 16.1 16.6 4.9 17.3 20.9 48.3 43.7 32.3 8.1 23.8 13.9 15.7 11.4 36.2 54.5 79.3 121.1 34.4 65.3 59.1 25.6 40.7 23.9 32.1 27.5 11.1 45.9 18.6 19.5 6.0 19.9 22.8 57.0 48.3 38.1 10.1 27.3 16.8 19.9 16.7 46.8 58.2 70.2 117.2 31.5 62.1 57.1 24.0 38.9 22.1 29.7 25.3 9.5 43.2 17.5 18.4 5.5 18.5 21.8 53.9 46.2 35.3 8.9 25.3 15.4 17.4 14.6 39.5 56.5 (Continues) T A B L E 6 (Continued) Slender-tailed group Morphological group Pollimyrus pulverulentus Pollimyrus ichreyeni Pollimyrus ibalazambai sp. nov. Syntype (n = 16) Paratype (n = 3) All Paratype (n = 20) All Species Min Max Mean Holotype Min Max Mean Holotype Min Max Mean Caudal peduncle depth (% BD) 12.7 18.3 15.3 Caudal peduncle depth (% CPL) 26.6 32.5 29.5 Anal-fin length (% LD) 120.0 126.7 122.9 14.4 14.9 15.7 15.0 16.1 29.7 24.4 29.4 27.9 31.1 233.1 213.8 229.4 224.9 146.1 15.3 27.3 121.9 19.2 33.1 146.8 17.4 29.7 134.3 Pollimyrus tumifrons group Pollimyrus isidori group Morphological group P. Pollimyrus Pollimyrus Pollimyrus Pollimyrus nigricans tumifrons aequipinnis anterodorsalis fasciaticeps P. isidori Species Holotype Holotype Holotype Syntype (n = 9)	en	Dierickx, Katrien, Lunkayilakio, Soleil Wamuini, Bills, Roger, Vreven, Emmanuel (2025): Morphometric synthesis of Pollimyrus (Teleostei, Mormyridae) with the description of four new species. Journal of Fish Biology 106 (3): 846-892, DOI: 10.1111/jfb.15983, URL: https://doi.org/10.1111/jfb.15983
195BB83EFFADFFC1FCA296FD41522EE5.taxon	materials_examined	Holotype Holotype Min Max Mean Pollimyrus vanneeri sp. nov. P. vanneeri sp. nov. Paratype	en	Dierickx, Katrien, Lunkayilakio, Soleil Wamuini, Bills, Roger, Vreven, Emmanuel (2025): Morphometric synthesis of Pollimyrus (Teleostei, Mormyridae) with the description of four new species. Journal of Fish Biology 106 (3): 846-892, DOI: 10.1111/jfb.15983, URL: https://doi.org/10.1111/jfb.15983
195BB83EFFADFFC1FCA296FD41522EE5.taxon	description	(n = 17) All	en	Dierickx, Katrien, Lunkayilakio, Soleil Wamuini, Bills, Roger, Vreven, Emmanuel (2025): Morphometric synthesis of Pollimyrus (Teleostei, Mormyridae) with the description of four new species. Journal of Fish Biology 106 (3): 846-892, DOI: 10.1111/jfb.15983, URL: https://doi.org/10.1111/jfb.15983
195BB83EFFADFFC1FCA296FD41522EE5.taxon	materials_examined	Holotype Min Max Mean Standard length 88.6 90.1 44.8 Measurements in % SL Total length 115.9 116.0 121.3 Body depth 28.7 27.5 29.3 Pre-dorsal length 60.3 62.0 60.4 Pre-anal length 61.3 58.6 61.4 Pre-pectoral length 26.1 26.1 28.1 Pre-pelvic length 40.1 38.6 43.9 Length of dorsal fin 29.3 30.6 29.3 Length of anal fin 26.4 28.2 26.4 Length of pectoral fin 21.2 26.2 22.6 Length of pelvic fin 11.2 12.4 12.7 Posterodorsal distance 43.2 45.8 46.4 Pectoral – pelvic distance 16.4 15.8 16.0 Caudal peduncle length 17.8 17.3 18.5 Caudal peduncle depth 4.5 4.9 4.7 Belly length 20.8 19.6 18.5 Head length 24.3 24.0 26.6 Measurements in % HL Head width 49.3 53.5 50.8 Snout – posterior side of eye 45.1 47.0 50.0 49.3 84.3 76.9 86.8 80.2 116.6 116.2 113.2 116.5 114.4 28.3 31.9 23.9 31.1 28.0 61.6 63.8 64.5 67.8 66.0 58.9 62.7 59.2 62.5 61.2 27.3 25.0 26.0 27.5 26.7 40.9 44.2 39.8 45.0 42.5 22.3 22.5 16.0 19.1 17.7 27.7 26.8 21.0 24.6 22.8 21.3 20.7 21.1 22.5 21.9 9.9 10.6 8.9 10.4 9.8 43.5 42.8 35.5 38.7 37.5 16.9 21.4 16.4 21.0 18.8 20.7 19.1 15.6 20.0 17.5 7.2 7.4 6.9 8.1 7.4 17.4 19.2 17.9 20.7 19.4 25.2 23.3 23.7 25.6 24.5 59.7 50.9 51.2 57.3 54.2 50.0 41.4 37.5 42.6 40.9 100.9 116.2 26.3 62.3 60.3 26.5 39.8 22.5 26.7 21.7 10.8 40.1 16.3 18.5 5.6 21.1 25.0 45.5 43.7 65.6 108.0 22.6 56.4 52.4 22.5 33.7 22.1 24.0 17.7 8.6 39.9 14.2 15.6 5.2 17.5 22.5 40.0 40.4 123.6 120.1 28.7 65.0 58.8 26.8 40.2 25.1 30.2 22.7 11.3 45.3 17.6 19.5 6.5 20.6 25.7 54.1 45.4 91.9 116.9 26.1 61.2 56.9 25.4 37.9 23.4 27.3 20.9 10.5 42.7 15.6 18.1 5.9 19.2 24.1 47.7 43.5 T A B L E 6 (Continued)	en	Dierickx, Katrien, Lunkayilakio, Soleil Wamuini, Bills, Roger, Vreven, Emmanuel (2025): Morphometric synthesis of Pollimyrus (Teleostei, Mormyridae) with the description of four new species. Journal of Fish Biology 106 (3): 846-892, DOI: 10.1111/jfb.15983, URL: https://doi.org/10.1111/jfb.15983
195BB83EFFADFFC1FCA296FD41522EE5.taxon	description	Pollimyrus tumifrons group Pollimyrus isidori group Morphological group P. Pollimyrus Pollimyrus Pollimyrus Pollimyrus nigricans tumifrons aequipinnis anterodorsalis fasciaticeps P. isidori Species Holotype Holotype Holotype Syntype (n = 9)	en	Dierickx, Katrien, Lunkayilakio, Soleil Wamuini, Bills, Roger, Vreven, Emmanuel (2025): Morphometric synthesis of Pollimyrus (Teleostei, Mormyridae) with the description of four new species. Journal of Fish Biology 106 (3): 846-892, DOI: 10.1111/jfb.15983, URL: https://doi.org/10.1111/jfb.15983
195BB83EFFADFFC1FCA296FD41522EE5.taxon	materials_examined	Holotype Holotype Min Max Mean Pollimyrus vanneeri sp. nov. P. vanneeri sp. nov. Paratype	en	Dierickx, Katrien, Lunkayilakio, Soleil Wamuini, Bills, Roger, Vreven, Emmanuel (2025): Morphometric synthesis of Pollimyrus (Teleostei, Mormyridae) with the description of four new species. Journal of Fish Biology 106 (3): 846-892, DOI: 10.1111/jfb.15983, URL: https://doi.org/10.1111/jfb.15983
195BB83EFFADFFC1FCA296FD41522EE5.taxon	description	(n = 17) All	en	Dierickx, Katrien, Lunkayilakio, Soleil Wamuini, Bills, Roger, Vreven, Emmanuel (2025): Morphometric synthesis of Pollimyrus (Teleostei, Mormyridae) with the description of four new species. Journal of Fish Biology 106 (3): 846-892, DOI: 10.1111/jfb.15983, URL: https://doi.org/10.1111/jfb.15983
195BB83EFFADFFC1FCA296FD41522EE5.taxon	materials_examined	Holotype Min Max Mean Snout – center of eye 37.7 34.3 36.9 Internasal length 7.7 8.8 7.8 Eye diameter 18.2 20.1 23.7 Lower-jaw width 18.6 14.8 18.9 Upper-jaw width 17.5 13.5 16.9 Snout length 20.3 17.0 18.3 Interorbital width 41.0 41.5 42.9 Postorbital length 54.0 53.9 53.3 Measurements (other %) 37.0 32.9 30.3 34.1 32.6 7.2 8.3 7.1 9.0 8.0 26.8 22.9 15.3 19.0 16.5 16.9 16.9 17.4 20.9 19.5 14.2 16.3 15.2 21.2 18.5 13.2 16.7 12.6 14.9 13.8 41.4 36.6 24.9 38.0 31.4 52.2 57.3 62.4 67.3 64.5 33.9 8.0 18.9 13.6 14.0 17.9 33.3 56.6 29.0 7.0 13.7 12.2 12.7 15.3 26.9 52.7 37.2 9.6 21.6 15.7 17.0 21.0 34.4 59.9 34.1 7.8 19.4 14.1 15.0 17.9 29.8 57.2 Caudal peduncle depth (% 15.6 17.9 16.0 25.5 23.3 23.2 30.4 26.5 21.5 20.3 24.2 22.4 BD) Caudal peduncle depth (% 25.1 28.6 25.3 34.9 38.9 38.3 47.60 42.30 30.4 28.0 33.6 32.6 CPL) Anal-fin length (% LD) 90.0 92.2 90.1 124.1 119.4 121.0 145.0 129.2 118.5 107.3 131.3 116.8 Note: See Tables S 9 – S 12 for additional data on synonymized species. Abbreviations: BD, body depth; CPL, caudal peduncle length; HL, head length; LD, length of dorsal fin; SL, standard length. Thick-tailed group	en	Dierickx, Katrien, Lunkayilakio, Soleil Wamuini, Bills, Roger, Vreven, Emmanuel (2025): Morphometric synthesis of Pollimyrus (Teleostei, Mormyridae) with the description of four new species. Journal of Fish Biology 106 (3): 846-892, DOI: 10.1111/jfb.15983, URL: https://doi.org/10.1111/jfb.15983
195BB83EFFADFFC1FCA296FD41522EE5.taxon	description	Morphological group Pollimyrus brevis Pollimyrus castelnaui Pollimyrus guttatus Pollimyrus marianne Syntype (n = 2) Syntype (n = 2) Paratype (n = 3) Paratype (n = 10) Species Min Max Min Max Holotype Min Max Holotype Min Max Dorsal-fin rays 18 18 16 Anal-fin rays 23 25 22 Pectoral-fin rays 10 10 10 Pelvic-fin rays 6 6 6 Vertebra 39 39 38 Teeth in upper jaw 7 8 7 Teeth in lower jaw 7 7 8 Lateral-line scales 40 46 47 Circumpeduncular scales 11 13 12 Scales lateral line – anal-fin origin 9 11 10 Scales lateral line – dorsal-fin origin 8 9 10 Scales lateral line – pelvic-fin origin 10 10 13 17 22 10 6 38 7 9 47 13 11 10 13 19 18 18 16 15 17 22 22 23 23 22 23 10 10 10 9 9 10 6 6 6 6 6 9 38 37 38 39 38 39 7 6 7 7 5 8 8 7 8 8 6 8 52 43 51 48 48 54 16 15 17 16 14 17 10 11 13 10 10 12 10 10 12 9 or 10 9 11 12 14 14 10 11 13 Morphological Thick-tailed group groups Pollimyrus Pollimyrus Pollimyrus krameri stappersii stappersii Pollimyrus petricolus sp. nov. Pollimyrus weyli sp. nov. stappersii kapangae Paratype (n = 3) Paratype Paratype Species Holotype Min Max Holotype Holotype Holotype (n = 1) Holotype (n = 1) Dorsal-fin rays 21 19 22 18 Anal-fin rays 24 22 25 22 Pectoral-fin rays 10 10 10 10 Pelvic-fin rays 6 6 6 6 Vertebra 42 41 43 39 Teeth in upper jaw 7 7 7 7 Teeth in lower jaw 8 8 8 8 Lateral-line scales 62 58 67 53 Circumpeduncular 17 16 20 13 scales Scales lateral line – 13 13 14 13 anal-fin origin Scales lateral line – 14 13 13 10 dorsal-fin origin Scales lateral line – 14 14 15 14 pelvic-fin origin 16 15 15 17 17 26 21 24 23 21 9 9 9 9 9 6 6 6 6 6 38 37 38 39 38 5 7 7 7 7 8 8 9 9 9 48 46 53 ?? 13 13 14 14 12 12 9 12? 11? 10 9 9 10 11? 12 11 11 13 ?? Slender-tailed group Morphological group Pollimyrus Cyphomyrus adspersus Pollimyrus maculipinnis plagiostoma Pollimyrus osborni Pollimyrus pedunculatus Syntype (n = 2) Syntype Species Holotype Paratype (n = 1) Holotype Holotype Min Max (n = 2) Dorsal-fin rays 19 20 17 17 16 19 32 33 Anal-fin rays 27 27 24 24 24 24 27 29 Pectoral-fin rays 9 10 10 10 10 10 12 12 T A B L E 7 (Continued) Slender-tailed group Morphological group Pollimyrus Cyphomyrus adspersus Pollimyrus maculipinnis plagiostoma Pollimyrus osborni Pollimyrus pedunculatus Syntype (n = 2) Syntype Species Holotype Paratype (n = 1) Holotype Holotype Min Max (n = 2) Pelvic-fin rays 6 6 6 6 6? 6 6 Vertebra 37 40 38 38 Teeth in upper jaw 7 8 7 7 Teeth in lower jaw 8 8 9 9 Lateral-line scales 47 47 62 51 Circumpeduncular scales ?? 15 16 Scales lateral line – anal-fin origin 11 12 14 14 Scales lateral line – dorsal-fin origin 11 13 14 15 Scales lateral line – pelvic-fin origin 12 13 16 17 37 40 44 44 7 7 9 9 9 7 8 10 51 56 69 73 17 16 14 14 12 11 14 17 15 11 14 17 15 13 17 18 Slender-tailed group Morphological group Pollimyrus pulverulentus Pollimyrus schreyeni Pollimyrus ibalazambai sp. nov. Syntype (n = 16) Holotype Paratype (n = 3) Paratype (n = 20) Species Min Max Min Max Holotype Min Max Dorsal-fin rays 18 24 Anal-fin rays 25 28 Pectoral-fin rays 9 10 Pelvic-fin rays 6 6 Vertebra 37 40 Teeth in upper jaw 8 10 Teeth in lower jaw 9 11 Lateral-line scales 42 54 Circumpeduncular scales 11 16 Scales lateral line – anal-fin origin 10 14 Scales lateral line – dorsal-fin origin 10 13 Scales lateral line – pelvic-fin origin 12 18 17 31 10 6 39 7 8 52 12 10 10 11 17 17 19 17 21 30 32 26 25 28 10 10 10 10 10 6 6 6 6 6 40 41 40 38 41 7 7 7 6 8 7 9 9 7 9 51 58 55 50 59 12 13 13 12 15 9 11 12 11 15 10 11 12 11 14 9 10 14 11 16 Pollimyrus tumifrons group Morphological group P. Pollimyrus Pollimyrus tumifrons aequipinnis anterodorsalis Species Holotype Holotype Holotype Dorsal-fin rays 28 25 24 Anal-fin rays 26 27 24 Pectoral-fin rays 12 12 12 Pelvic-fin rays 6 6 6 Vertebra 42 41 40 Teeth in upper jaw 9 8 7 Teeth in lower jaw 10 10 8 Lateral-line scales 62 67 63 Circumpeduncular 16 18 13 scales Pollimyrus isidori group Pollimyrus vanneeri sp. nov. Pollimyrus Pollimyrus nigricans P. vanneeri sp. nov. fasciaticeps P. isidori Syntype Paratype (n = 9) (n = 17) Holotype Holotype Min Max Holotype Min Max 17 20 14 17 23 21 24 24 24 22 24 26 24 27 10 10 10 10 11 10 12 6 6 6 6 6 6 6 37 38 37 39 41 41 43 7? 6 8 7 6 8 8? 8 9 7 5 9 52 51 48 55 72 59 73 18 16 17 20 19 17 23 (Continues) T A B L E 7 (Continued) Pollimyrus tumifrons group Morphological group P. Pollimyrus Pollimyrus tumifrons aequipinnis anterodorsalis Species Holotype Holotype Holotype Scales lateral line – 15 15 15 anal-fin origin Scales lateral line – 16 16 16 dorsal-fin origin Scales lateral line – 17 17 15 pelvic-fin origin Note: See Tables S 9 – S 12 for additional data on synonymized species. Pollimyrus sp. “ luki ”	en	Dierickx, Katrien, Lunkayilakio, Soleil Wamuini, Bills, Roger, Vreven, Emmanuel (2025): Morphometric synthesis of Pollimyrus (Teleostei, Mormyridae) with the description of four new species. Journal of Fish Biology 106 (3): 846-892, DOI: 10.1111/jfb.15983, URL: https://doi.org/10.1111/jfb.15983
195BB83EFFADFFC1FCA296FD41522EE5.taxon	materials_examined	Type material Holotype DEMOCRATIC REPUBLIC OF THE CONGO Luki River near Kimbozi Bridge; 5 42 0 3.6 00 S, 12 57 0 35.1 00 E; June 24, 2017; S. Wamuini Lukayilakio and Z. J. Kosi leg.; 70.2 mm SL; RMCA 2017.014. P. 0002. Paratypes DEMOCRATIC REPUBLIC OF THE CONGO one paratype; same data as holotype; 76.0 mm SL; RMCA 2017.014. P. 0001 three paratypes; same data as holotype; 67.0 – 79.3 mm SL; RMCA 2017.014. P. 0003 - 0005 two paratypes; same data as holotype; 67.5 – 67.7 mm SL; AMNH 281713 two paratypes; same data as holotype; 70.7 – 71.4 mm SL; RMCA 2017.014. P. 0008 - 0009 six paratypes; same data as holotype; 64.6 – 71.9 mm SL; RMCA 2017.014. P. 0010 - 0015 two paratypes; same data as holotype; 70.1 – 74.4 mm SL; BMNH 2024.9.20.2 - 3 two paratypes; same data as holotype; 69.8 – 70.2 mm SL; ZSM 49655 two paratypes; same data as holotype; 70.7 – 77.5 mm SL; RMCA 2017.14. P. 0020 - 0021.	en	Dierickx, Katrien, Lunkayilakio, Soleil Wamuini, Bills, Roger, Vreven, Emmanuel (2025): Morphometric synthesis of Pollimyrus (Teleostei, Mormyridae) with the description of four new species. Journal of Fish Biology 106 (3): 846-892, DOI: 10.1111/jfb.15983, URL: https://doi.org/10.1111/jfb.15983
195BB83EFFADFFC1FCA296FD41522EE5.taxon	diagnosis	Diagnosis Distinguished from its congeners by the following unique combination of characters: a slender tail (15.3 % – 19.2 % BD vs. thicker, 21.7 % – 31.2 % BD, in P. brevis, P. castelnaui, P. fasciaticeps, P. guttatus, P. isidori, P. krameri, P. marianne, P. nigricans, P. petricolus, P. stappersii, P. vanneeri, and P. weyli); a blocky snout (vs. rounded snout in P. brevis, P. castelnaui, P. guttatus, P. krameri, P. marianne, P. petricolus, P. stappersii, P. vanneeri, and P. weyli); pointed pectoral fin (vs. rounded in P. brevis, P. castelnaui, P. guttatus, P. krameri, P. marianne, P. petricolus, P. stappersii, P. tumifrons, P. vanneeri, and P. weyli); concave anal and dorsal fins (vs. rounded in P. brevis, P. castelnaui, P. guttatus, P. krameri, P. marianne, P. petricolus, P. stappersii, P. vanneeri, and P. weyli); absence of chin (vs. obvious chin in P. brevis, P. castelnaui, P. guttatus, P. krameri, P. marianne, P. petricolus, P. stappersii, P. vanneeri, and P. weyli); small, widely spaced, symmetrical teeth with clear cusps; a short head (20.9 % – 22.8 % SL vs. 23.2 % – Pollimyrus isidori group Pollimyrus vanneeri sp. nov.	en	Dierickx, Katrien, Lunkayilakio, Soleil Wamuini, Bills, Roger, Vreven, Emmanuel (2025): Morphometric synthesis of Pollimyrus (Teleostei, Mormyridae) with the description of four new species. Journal of Fish Biology 106 (3): 846-892, DOI: 10.1111/jfb.15983, URL: https://doi.org/10.1111/jfb.15983
195BB83EFFADFFC1FCA296FD41522EE5.taxon	description	Pollimyrus Pollimyrus nigricans P. vanneeri sp. nov. fasciaticeps P. isidori Syntype Paratype (n = 9) (n = 17) Holotype Holotype Min Max Holotype Min Max 14 14 11 14 18 12 18 16 14 11 14 18 13 20 14 16 12 12 19 14 20 27.7 % SL in P. adspersus, P. maculipinnis, P. osborni, and P. pulverulentus); a short dorsal fin (20.4 % – 23.9 % SL vs. shorter, 15.2 % – 19.5 % SL, in P. maculipinnis and P. schreyeni, and longer, 25.0 % – 37.9 % SL, in P. pedunculatus and C. plagiostoma); and anterior nostril positioned higher than the posterior one (vs. vice versa in P. pedunculatus). Also see Supplementary file S 1 for details and a differential diagnosis with each species. Description Based on holotype and paratypes. Measurements and meristics are given in Tables 6 and 7. A relatively small species, with a maximum observed size of 79.3 mm SL. Body oblong or diamond shaped and dorso-ventrally compressed. Deepest point of body around anal-fin origin. Head blocky and less deep than body. Mouth small and subterminal, not reaching level of eye. No obvious chin. Anterior nostril positioned higher than posterior one. Posterior nostril close to eye. Nostrils separated by less than half snout – eye distance. Very small, close-set, bicuspid teeth in a single row, six to eight in the upper jaw and seven to nine in the lower jaw. Arch of teeth not filling entire upper and lower jaw. Most anterior tooth on upper jaw clearly positioned anteriorly of second most teeth left and right of it. Anal-fin origin slightly in front of dorsal-fin origin. Anal fin longer than dorsal fin. Anterior parts of anal and dorsal fins higher than posterior part with concave diminution (see Figure 1 for definition). Pectoral fin long, reaching tip of or even extending beyond pelvic fin. First three pectoral-fin rays longer than others with concave diminution. Caudal-fin lobes somewhat rounded and long. Long and slender caudal peduncle. Color in life Body generally light silvery-grayish with some greenish / olive spots on the head and dorsum and some dark gray spots on the underside of the head. Dorsal, anal, and caudal fins darker gray at base and translucent at distal end. Pectoral fins light to dark gray at base and translucent at distal end. Pelvic fins slightly pinkish and translucent at distal end. Slight darker gray midlateral stripe of one to two scales wide running from behind the head to the caudal peduncle (Figure 9). F I G U R E 8 Photographs of preserved specimens of Pollimyrus ibalazambai sp. nov. (a) Holotype (Royal Museum for Central Africa [RMCA] 2017.014. P. 0002: 70.2 mm SL [standard length]). (b) Paratype (RMCA 2017.014. P. 0020 - 0021, ID = 22: 70.7 mm SL).	en	Dierickx, Katrien, Lunkayilakio, Soleil Wamuini, Bills, Roger, Vreven, Emmanuel (2025): Morphometric synthesis of Pollimyrus (Teleostei, Mormyridae) with the description of four new species. Journal of Fish Biology 106 (3): 846-892, DOI: 10.1111/jfb.15983, URL: https://doi.org/10.1111/jfb.15983
195BB83EFFADFFC1FCA296FD41522EE5.taxon	materials_examined	Color in preserved specimens Body generally light brownish with large darker brown spots on the head and smaller ones over the entire body. Head slightly darker. Dorsal side of the body and caudal peduncle dark brown. Dorsal, anal, and caudal fins yellow to brown at base and translucent at distal end. Pectoral and pelvic fins light yellow to light brown at base and translucent at distal end. Lateral line gray to black. Some specimens with darker supralateral line (s) (Figure 8).	en	Dierickx, Katrien, Lunkayilakio, Soleil Wamuini, Bills, Roger, Vreven, Emmanuel (2025): Morphometric synthesis of Pollimyrus (Teleostei, Mormyridae) with the description of four new species. Journal of Fish Biology 106 (3): 846-892, DOI: 10.1111/jfb.15983, URL: https://doi.org/10.1111/jfb.15983
195BB83EFFADFFC1FCA296FD41522EE5.taxon	distribution	Distribution and habitat The specimens of P. ibalazambai were collected near the bridge of Kimbozi Village in the Luki River, a left bank affluent of the Lukunga, itself a right bank affluent of the Lower Congo River (DRC) (Figures 2 and 10). The river where the specimens were caught was about 12 m wide and 60 cm deep. The river flowed at a speed of 0.3 m / s. The banks of the river were grassy, and the canopy above the river covered about 10 % of its surface only. The floor of the river consisted of mostly sand with some mud, gravel, and pebbles. The following physicochemical parameters were collected at the type locality: water temperature about 22 C, pH 7.6, salinity 0.1 ppm, and oxygen level of 7.3 mg / L. Etymology The specific epithet is a noun honoring Professor Dr. Armel Ibala Zamba (1975 –) (Université Marien Ngouabi, the Republic of the Congo) for his contributions to African ichthyology and his work in the Luki River basin (DRC) within the framework of his PhD (2005 – 2010). Pollimyrus krameri sp. nov. Zoobank registration: urn: lsid: zoobank. org: act: 48 E 2 A 84 F- 625 C- 4891 - A 7 E 8 - F 6368805 AE 1 E Figures 11 and 12; Tables 6 and 7 Pollimyrus sp. “ lugenda ”	en	Dierickx, Katrien, Lunkayilakio, Soleil Wamuini, Bills, Roger, Vreven, Emmanuel (2025): Morphometric synthesis of Pollimyrus (Teleostei, Mormyridae) with the description of four new species. Journal of Fish Biology 106 (3): 846-892, DOI: 10.1111/jfb.15983, URL: https://doi.org/10.1111/jfb.15983
195BB83EFFADFFC1FCA296FD41522EE5.taxon	materials_examined	Type material Holotype MOZAMBIQUE Lugenda River near the Mpamanda Fishing camp; 12 26 0 51 00 S, 37 35 0 45 00 E; August 22, 2003; R. Bills leg.; 45.6 mm SL; SAIAB 73892. Paratypes MOZAMBIQUE one paratype; same data as holotype; 48.7 mm SL; SAIAB 237203.	en	Dierickx, Katrien, Lunkayilakio, Soleil Wamuini, Bills, Roger, Vreven, Emmanuel (2025): Morphometric synthesis of Pollimyrus (Teleostei, Mormyridae) with the description of four new species. Journal of Fish Biology 106 (3): 846-892, DOI: 10.1111/jfb.15983, URL: https://doi.org/10.1111/jfb.15983
195BB83EFFADFFC1FCA296FD41522EE5.taxon	diagnosis	Diagnosis Distinguished from its congeners by the following unique combination of characters: thick caudal peduncle (23.4 % – 23.4 % BD vs. shallower, 12.7 % – 21.9 % BD, in P. adspersus, P. maculipinnis, P. osborni, P. pedunculatus, P. pulverulentus, P. schreyeni, P. stappersii, P. tumifrons, P. ibalazambai, and C. plagiostoma, and deeper, 25.4 % – 28.8 % BD, in P. petricolus); rounded pectoral fins (vs. pointed in P. adspersus, P. fasciaticeps, P. isidori, P. maculipinnis, P. nigricans, P. osborni, P. pedunculatus, P. pulverulentus, P. schreyeni, P. ibalazambai, and C. plagiostoma); rounded (similar height of rays) anterior part of dorsal and anal fins (vs. pointed in P. adspersus, P. maculipinnis, P. osborni, P. pedunculatus, P. pulverulentus, P. schreyeni, P. tumifrons, P. ibalazambai sp. nov, and C. plagiostoma); small chin (vs. no chin in P. adspersus, P. fasciaticeps, P. isidori, P. maculipinnis, P. nigricans, P. osborni, P. pedunculatus, P. pulverulentus, P. schreyeni, P. vanneeri, P. ibalazambai, and C. plagiostoma); shallow body (25.3 % – 26.7 % SL vs. thicker, 28.2 % – 35.8 % SL, in P. adspersus, P. brevis, P. castelnaui, P. fasciaticeps, P. guttatus, P. isidori, P. maculipinnis, P. osborni, P. pedunculatus, P. pulverulentus, P. schreyeni, P. weyli, and C. plagiostoma); short snout (13.5 % HL vs. shorter, 10.5 % – 11.8 % HL, in P. adspersus and longer, 14.9 % – 22.0 % HL, in P. isidori, P. schreyeni, P. tumifrons, P. vanneeri, and C. plagiostoma); shorter snout – posterior side eye distance (39.4 % – 39.7 % HL vs. longer, 39.5 % – 53.8 % HL, in P. adspersus, P. brevis, P. castelnaui, P. fasciaticeps, P. guttatus, P. isidori, P. maculipinnis, P. marianne, P. osborni, P. pedunculatus, P. petricolus, P. pulverulentus, P. schreyeni, P. stappersii, P. tumifrons, P. ibalazambai, and C. plagiostoma); small eye (14.3 % – 15.5 % HL vs. larger, 15.5 % – 28.7 % HL, in P. adspersus, P. brevis, P. castelnaui, P. fasciaticeps, P. guttatus, P. isidori, P. maculipinnis, P. marianne, P. osborni, P. pedunculatus, P. petricolus, P. pulverulentus, P. schreyeni, P. tumifrons, P. weyli, P. ibalazambai, and C. plagiostoma); short posterodorsal distance (36.8 % – 37.0 % SL vs. longer, 38.1 % – 52.8 % SL, in P. adspersus, P. castelnaui, P. fasciaticeps, P. guttatus, P. isidori, P. maculipinnis, P. osborni, P. pedunculatus, P. petricolus, P. pulverulentus, P. schreyeni, P. tumifrons, P. vanneeri, P. ibalazambai, and C. plagiostoma); long head (24.8 % – 25.2 % SL vs. shorter, 22.4 % – 23.3 % SL, in P. castelnaui and P. isidori); few dorsal-fin rays (15 vs. more, 17 – 33, in P. adspersus, P. brevis, P. fasciaticeps, P. guttatus, P. isidori, P. maculipinnis, P. pedunculatus, P. petricolus, P. pulverulentus, P. schreyeni, P. tumifrons, P. vanneeri, P. weyli, P. ibalazambai, and C. plagiostoma); and few circumpeduncular scales (13 – 14 vs. more, 16 – 23, in P. fasciaticeps, P. isidori, P. nigricans, P. osborni, P. pedunculatus, P. petricolus, and P. vanneeri). Also see Supplementary file S 1 for details and a differential diagnosis with each species.	en	Dierickx, Katrien, Lunkayilakio, Soleil Wamuini, Bills, Roger, Vreven, Emmanuel (2025): Morphometric synthesis of Pollimyrus (Teleostei, Mormyridae) with the description of four new species. Journal of Fish Biology 106 (3): 846-892, DOI: 10.1111/jfb.15983, URL: https://doi.org/10.1111/jfb.15983
195BB83EFFADFFC1FCA296FD41522EE5.taxon	description	Description Based on holotype and paratype. Measurements and meristics are given in Tables 6 and 7. A relatively small species, with a maximum observed size of 48.7 mm SL. Body oblong, elongated, and dorso-ventrally compressed. Deepest point of body at anal-fin origin, and not changing drastically over entire body. Head round and less deep than body. Mouth small and subterminal, not reaching level of eye. Slight chin. Snout protruding. Anterior nostril positioned higher than posterior one. Posterior nostril close to eye. Nostrils separated by less than snout – eye distance. Bicuspid teeth in single row, eight to nine in upper jaw and seven in lower jaw. Arch of teeth filling entire upper and lower jaw. Most anterior tooth on upper jaw clearly positioned anteriorly of second most teeth left and right of it. Anal-fin origin posterior of dorsal-fin origin. Anal fin longer than dorsal fin. Anterior parts of anal and dorsal fins slightly higher than posterior part. Anal- and dorsal-fin edges straight. Pectoral fin rounded, reaching halfway pelvic fin. Caudal-fin lobes rounded and broad, overlapping in middle. Thick caudal peduncle. Color in life Body dark brown or gray. Ventral side of head and belly light yellowish. Caudal peduncle slightly darker brown or gray. Dorsal, anal, and caudal fins dark brown at base and slightly translucent at distal end. Pectoral fins dark brown or gray and slightly translucent. Pelvic fins light gray and slightly translucent. Lateral line dark gray (Figure 12).	en	Dierickx, Katrien, Lunkayilakio, Soleil Wamuini, Bills, Roger, Vreven, Emmanuel (2025): Morphometric synthesis of Pollimyrus (Teleostei, Mormyridae) with the description of four new species. Journal of Fish Biology 106 (3): 846-892, DOI: 10.1111/jfb.15983, URL: https://doi.org/10.1111/jfb.15983
195BB83EFFADFFC1FCA296FD41522EE5.taxon	materials_examined	Color in preserved specimens Body dark brown / reddish. Ventral side of head and belly yellow or pale yellow. Caudal peduncle slightly darker. Dorsal and anal fins brown at base and translucent at distal end. Caudal fin light brown or gray and translucent. Pectoral fins light brown or gray and translucent. Pelvic fin light brown or gray and translucent. Lateral line dark brown (Figure 11).	en	Dierickx, Katrien, Lunkayilakio, Soleil Wamuini, Bills, Roger, Vreven, Emmanuel (2025): Morphometric synthesis of Pollimyrus (Teleostei, Mormyridae) with the description of four new species. Journal of Fish Biology 106 (3): 846-892, DOI: 10.1111/jfb.15983, URL: https://doi.org/10.1111/jfb.15983
195BB83EFFADFFC1FCA296FD41522EE5.taxon	distribution	Distribution and habitat The specimens of P. krameri were found in a braid channel, the Nkupo Stream, during the dry season, which is part of the Lugenda River, itself a right bank affluent of the Rovuma River (Mozambique) (Figures 2 and 13). The stream has dense marginal vegetation. The bottom of the river is sandy and rocky, without aquatic weed beds. Marginal Phragmites reeds, grasses, and trees result in significant F I G U R E 1 1 Photographs of preserved specimens of Pollimyrus krameri sp. nov. (a) Holotype (South African Institute for Aquatic Biodiversity [SAIAB] 73892: 45.6 mm SL [standard length]). (b) Paratype (SAIAB 237203: 48.7 mm SL). F I G U R E 1 2 Photograph of dead, but not yet fixed, holotype specimen of Pollimyrus krameri sp. nov. (South African Institute for Aquatic Biodiversity [SAIAB] 73892: 45.6 mm SL [standard length]) from the Lugenda River (by R. B., August 22, 2003). marginal root stocks along some river edges. The small Nkupo Stream was not flowing and did not have aquatic macrophytes, but it was filled with filamentous algae and emergent plant root stocks. During the wet season, this stream would be part of the main river. The specimens were collected using seine netting into and underneath root stocks.	en	Dierickx, Katrien, Lunkayilakio, Soleil Wamuini, Bills, Roger, Vreven, Emmanuel (2025): Morphometric synthesis of Pollimyrus (Teleostei, Mormyridae) with the description of four new species. Journal of Fish Biology 106 (3): 846-892, DOI: 10.1111/jfb.15983, URL: https://doi.org/10.1111/jfb.15983
195BB83EFFADFFC1FCA296FD41522EE5.taxon	etymology	Etymology The specific epithet is a noun honoring Professor Dr. Bernd Kramer (1943 –) (University of Regensburg, Germany) for his contributions to ichthyology and study of weakly electric fish, southern African Mormyridae in particular. Pollimyrus vanneeri sp. nov. Zoobank registration: urn: lsid: zoobank. org: act: 5925507 B-C 01 A- 4319 - 8221 - 146366363783 Figure 14; Tables 6 and 7 Pollimyrus sp. “ kouilou-niari ”	en	Dierickx, Katrien, Lunkayilakio, Soleil Wamuini, Bills, Roger, Vreven, Emmanuel (2025): Morphometric synthesis of Pollimyrus (Teleostei, Mormyridae) with the description of four new species. Journal of Fish Biology 106 (3): 846-892, DOI: 10.1111/jfb.15983, URL: https://doi.org/10.1111/jfb.15983
195BB83EFFADFFC1FCA296FD41522EE5.taxon	materials_examined	Type material Holotype REPUBLIC OF THE CONGO Kouilou-Niari River near Kakamoeka; 4 8 0 S, 12 4 0 E; October 10, 1990; G. Teugels, L. De Vos and J. Snoeks leg.; 100.9 mm SL; RMCA 1990.057. P. 2878. Paratypes REPUBLIC OF THE CONGO eight paratypes; same data as holotype; 79.9 – 118.3 mm SL; RMCA 1990.057. P. 2879 - 2885 one paratype; same data as holotype; 81.3 mm SL; AMNH 281712 one paratype; same data as holotype; 85.6 mm SL; BMNH 2024.9. 20.1 one paratype; same data as holotype; 83.9 mm SL; MNHN 2024 - 0897 one paratype; same data as holotype; 90.6 mm SL; ZSM 49654 two paratypes; same data as holotype; October 12, 1990; 65.6 – 123.6 mm SL; RMCA 1990.057. P. 2893 - 2894 three paratypes; confluence of Kissafou and Kouilou-Niari rivers; 4 7 0 S, 12 5 0 E; October 11, 1990; G. Teugels, L. De Vos and J. Snoeks; 77.9 – 99.5 mm SL; RMCA 1990.057. P. 2890 - 2892.	en	Dierickx, Katrien, Lunkayilakio, Soleil Wamuini, Bills, Roger, Vreven, Emmanuel (2025): Morphometric synthesis of Pollimyrus (Teleostei, Mormyridae) with the description of four new species. Journal of Fish Biology 106 (3): 846-892, DOI: 10.1111/jfb.15983, URL: https://doi.org/10.1111/jfb.15983
195BB83EFFADFFC1FCA296FD41522EE5.taxon	diagnosis	Diagnosis Distinguished from its congeners by the following unique combination of characters: thick caudal peduncle (20.3 % – 24.4 % BD vs. slender, 12.7 % – 20.2 % BD, in P. adspersus, P. maculipinnis, P. osborni, P. pedunculatus, P. pulverulentus, P. schreyeni, P. tumifrons, P. ibalazambai, and C. plagiostoma); rounded pectoral fins (vs. pointed in P. adspersus, P. fasciaticeps, P. isidori, P. maculipinnis, P. nigricans, P. osborni, P. pedunculatus, P. pulverulentus, P. schreyeni, P. ibalazambai, and C. plagiostoma); shallow body (22.6 % – 28.7 % SL vs. deep, 29.1 % – 34.6 % SL, in P. adspersus, P. brevis, P. castelnaui, P. guttatus., P. isidori, P. maculipinnis, P. osborni, P. schreyeni, and C. plagiostoma); short pre-anal distance (52.4 % – 58.8 % SL vs. long, 59.2 % – 65.8 % SL, in P. brevis, P. castelnaui, P. guttatus, P. isidori, P. krameri, P. nigricans, P. stappersii, and P. weyli); more vertebrae (41 – 43 vs. fewer, 37 – 40, in P. adspersus, P. brevis, P. castelnaui, P. fasciaticeps, P. guttatus, P. isidori, P. maculipinnis, P. marianne, P. nigricans, P. osborni, P. krameri, P. pedunculatus, P. pulverulentus, P. stappersii, and P. weyli, and more, 44, in C. plagiostoma); 21 – 24 dorsal-fin rays (vs. fewer, 14 – 20, in P. adspersus, P. brevis, P. castelnaui, P. fasciaticeps, P. guttatus, P. isidori, P. krameri, P. maculipinnis, P. marianne, P. osborni, P. pedunculatus, P. schreyeni, P. stappersii, and P. weyli, and more, 32 – 33, in C. plagiostoma); long snout (15.3 % – 21.0 % HL vs. shorter, 10.5 % – 14.9 % HL, in P. adspersus, P. castelnaui, P. guttatus, P. fasciaticeps, P. krameri, P. maculipinnis, P. nigricans, P. osborni, P. pedunculatus, P. petricolus, P. stappersii, and P. weyli); small eye (13.7 % – 21.6 % HL vs. larger, 22.9 % – 28.7 % HL, in P. adspersus, P. fasciaticeps, P. maculipinnis, P. osborni, and P. ibalazambai); long dorsal fin (22.1 % – 25.1 % SL vs. shorter, 15.2 % – 20.2 % SL, in P. brevis, P. castelnaui, P. krameri, P. maculipinnis, P. marianne, P. nigricans, P. schreyeni, P. stappersii, and P. weyli, and longer, 29.3 % – 37.9 % SL, in P. tumifrons and C. plagiostoma). Also see Supplementary file S 1 for details and a differential diagnosis with each species.	en	Dierickx, Katrien, Lunkayilakio, Soleil Wamuini, Bills, Roger, Vreven, Emmanuel (2025): Morphometric synthesis of Pollimyrus (Teleostei, Mormyridae) with the description of four new species. Journal of Fish Biology 106 (3): 846-892, DOI: 10.1111/jfb.15983, URL: https://doi.org/10.1111/jfb.15983
195BB83EFFADFFC1FCA296FD41522EE5.taxon	description	Description Based on holotype and paratypes. Measurements and meristics are given in Tables 6 and 7. A relatively small species, with a maximum observed size of 123.6 mm SL. Body oblong, somewhat elongated, and dorso-ventrally compressed. Deepest point of body around anal-fin origin, and not changing drastically over entire body length. Head blocky and about as deep as body. Mouth small and subterminal, reaching level of eye. No obvious chin. Snout protruding. Anterior nostril positioned higher than posterior one. Posterior nostril close to eye. Nostrils separated by less than half snout – eye distance. Large close-set, bicuspid teeth in single row, six to eight in upper jaw and five to nine in lower jaw. Arch of teeth filling entire upper and lower jaw. Three most anteriorly teeth positioned at about same level in upper jaw. Anal-fin origin slightly in front of dorsal-fin origin. Anal fin longer than dorsal fin. Anterior parts of anal and dorsal fin higher than posterior part with concave diminution. Pectoral fin long, reaching tip of pelvic fin. First three pectoral-fin rays longer than others with concave diminution. Caudal-fin lobes somewhat rounded and long. Long and deep caudal peduncle. Color in life Unknown.	en	Dierickx, Katrien, Lunkayilakio, Soleil Wamuini, Bills, Roger, Vreven, Emmanuel (2025): Morphometric synthesis of Pollimyrus (Teleostei, Mormyridae) with the description of four new species. Journal of Fish Biology 106 (3): 846-892, DOI: 10.1111/jfb.15983, URL: https://doi.org/10.1111/jfb.15983
195BB83EFFADFFC1FCA296FD41522EE5.taxon	materials_examined	Color in preserved specimens Body generally light brownish or red-brownish. Head slightly darker. Dorsal side of body darker brown in some specimens. Dorsal and anal fins brown at base and translucent at distal end. Caudal-fin base white, yellow, or light brown, and distal end translucent. Pectoral and pelvic fins yellow / white and translucent at distal end. Lateral line light brown. Second, darker brown supralateral curved line visible across body (Figure 14).	en	Dierickx, Katrien, Lunkayilakio, Soleil Wamuini, Bills, Roger, Vreven, Emmanuel (2025): Morphometric synthesis of Pollimyrus (Teleostei, Mormyridae) with the description of four new species. Journal of Fish Biology 106 (3): 846-892, DOI: 10.1111/jfb.15983, URL: https://doi.org/10.1111/jfb.15983
195BB83EFFADFFC1FCA296FD41522EE5.taxon	distribution	Distribution and habitat The specimens of P. vanneeri were collected near Kakamoeka in the Kouilou-Niari River and at the confluence of the Kouilou-Niari River with the Kissafou River, the latter a right bank affluent of the former, Republic of the Congo (Figure 2). The following physicochemical parameters were collected at the type locality: water temperature about 27.7 C in the afternoon; pH 7.8; oxygen level 6.8 mg / L; ammonium concentration 0.1 mg / L; nitrites concentration 0.05 mg / L; F I G U R E 1 4 Photographs of preserved specimens of Pollimyrus vanneeri sp. nov. (a) Holotype (Royal Museum for Central Africa [RMCA] 1990.057. P. 2878: 100.9 mm SL [standard length]); (b) Paratype (RMCA 1990.057. P. 2890 - 2892: 99.5 mm SL). silicium concentration 1 mg / L; calcium concentration 18 – 26 ppm; and phosphate level 0.25 mg / L.	en	Dierickx, Katrien, Lunkayilakio, Soleil Wamuini, Bills, Roger, Vreven, Emmanuel (2025): Morphometric synthesis of Pollimyrus (Teleostei, Mormyridae) with the description of four new species. Journal of Fish Biology 106 (3): 846-892, DOI: 10.1111/jfb.15983, URL: https://doi.org/10.1111/jfb.15983
195BB83EFFADFFC1FCA296FD41522EE5.taxon	etymology	Etymology The specific epithet is a noun honoring Professor Dr. Wim Van Neer (1954 –) (Royal Belgian Institute of Natural Sciences, Brussels, and KU Leuven, Leuven, Belgium) for his contributions to ichthyoarchaeology in Europe and northern Africa. Pollimyrus weyli sp. nov. Zoobank registration: urn: lsid: zoobank. org: act: FB 535 D 7 B- 2446 - 4 DB 6 - 850 A-E 688 C 2 E 3 F 65 D Figures 15 and 16; Tables 6 and 7 Pollimyrus sp. “ buzi ”	en	Dierickx, Katrien, Lunkayilakio, Soleil Wamuini, Bills, Roger, Vreven, Emmanuel (2025): Morphometric synthesis of Pollimyrus (Teleostei, Mormyridae) with the description of four new species. Journal of Fish Biology 106 (3): 846-892, DOI: 10.1111/jfb.15983, URL: https://doi.org/10.1111/jfb.15983
195BB83EFFADFFC1FCA296FD41522EE5.taxon	materials_examined	Type material Holotype MOZAMBIQUE Mussapa River, Krongwa Stream near Dombe; 19 54 0 44 00 S, 33 20 0 22 00 E; September 27, 2002; R. Bills leg.; 51.4 mm SL; SAIAB 67639. Paratypes MOZAMBIQUE one paratype; Lucite River, Mukombe Stream near Dombe; 19 56 0 38 00 S, 33 29 0 06 00 E; September 29, 2002; R. Bills leg.; 49.1 mm SL; SAIAB 67706.	en	Dierickx, Katrien, Lunkayilakio, Soleil Wamuini, Bills, Roger, Vreven, Emmanuel (2025): Morphometric synthesis of Pollimyrus (Teleostei, Mormyridae) with the description of four new species. Journal of Fish Biology 106 (3): 846-892, DOI: 10.1111/jfb.15983, URL: https://doi.org/10.1111/jfb.15983
195BB83EFFADFFC1FCA296FD41522EE5.taxon	diagnosis	Diagnosis Distinguished from its congeners by the following unique combination of characters: wide upper jaw (22.6 % – 24.5 % HL vs. slender, 12.7 % – 21.5 % HL, in P. adspersus, P. castelnaui, P. fasciaticeps, P. guttatus, P. isidori, P. krameri, P. maculipinnis, P. marianne, P. nigricans, P. osborni, P. pedunculatus, P. petricolus, P. pulverulentus, P. schreyeni, P. stappersii, P. tumifrons, P. vanneeri, P. ibalazambai, and C. plagiostoma); thick caudal peduncle (23.4 % – 23.8 % BD vs. slender, 12.7 % – 21.9 % BD, in P. adspersus, P. maculipinnis, P. osborni, P. pedunculatus, P. pulverulentus, P. schreyeni, P. stappersii, P. tumifrons, P. ibalazambai, and C. plagiostoma, and thicker, 25.4 % – 28.8 % BD, in P. petricolus); rounded pectoral fins (vs. pointed in P. adspersus, P. fasciaticeps, P. isidori, P. maculipinnis, P. nigricans, P. osborni, P. pedunculatus, P. pulverulentus, P. schreyeni, P. ibalazambai, and C. plagiostoma); rounded dorsal and anal fins (vs. pointed in P. adspersus, P. maculipinnis, P. osborni, P. pedunculatus, P. pulverulentus, P. schreyeni, P. tumifrons, P. ibalazambai, and C. plagiostoma); small chin (vs. no chin in P. adspersus, P. fasciaticeps, P. isidori, P. maculipinnis, P. nigricans, P. osborni, P. pedunculatus, P. pulverulentus, P. schreyeni, P. vanneeri, P. ibalazambai, and C. plagiostoma); deep body (29.6 % – 29.9 % SL vs. shallow, 22.2 % – 28.7 % SL, in P. fasciaticeps, P. krameri, P. pedunculatus, P. petricolus, P. vanneeri, and P. stappersii, and deeper, 31.9 % – 34.6 % SL, in P. isidori, P. osborni, and C. plagiostoma); wide head (55.2 % – 58.7 % HL vs. slender, 43.4 % – 53.8 % HL, in P. adspersus, P. guttatus, P. isidori, P. krameri, P. pedunculatus, P. petricolus, and P. tumifrons); short anal fin (20.2 % – 22.5 % SL vs. longer, 24.0 % – 35.4 % SL, in P. adspersus, P. brevis, P. castelnaui, P. fasciaticeps, P. guttatus, P. isidori, P. maculipinnus, P. osborni, P. pedunculatus, P. pulverulentus, P. schreyeni, P. tumifrons, P. vanneeri, P. ibalazambai, and C. plagiostoma); short pectoral fin (18.1 % – 19.6 % SL vs. longer, 21.1 % – 27.5 % SL, in P. adspersus, P. fasciaticeps, P. guttatus, P. nigricans, P. osborni, P. pulverulentus, P. schreyeni, P. tumifrons, and P. ibalazambai); and 17 dorsal-fin rays (vs. fewer, 15 in P. krameri, and more, 19 – 33, in P. adspersus, P. isidori, P. pedunculatus, P. petricolus, P. tumifrons, P. vanneeri, and C. plagiostoma). Also see Supplementary file S 1 for details and a differential diagnosis with each species.	en	Dierickx, Katrien, Lunkayilakio, Soleil Wamuini, Bills, Roger, Vreven, Emmanuel (2025): Morphometric synthesis of Pollimyrus (Teleostei, Mormyridae) with the description of four new species. Journal of Fish Biology 106 (3): 846-892, DOI: 10.1111/jfb.15983, URL: https://doi.org/10.1111/jfb.15983
195BB83EFFADFFC1FCA296FD41522EE5.taxon	description	Description Based on holotype and paratype. Measurements and meristics are given in Tables 6 and 7. A relatively small species, with a maximum observed size of 51.4 mm SL. Body oblong, somewhat elongated, and dorso-ventrally compressed. Deepest point of body at pelvic-fin origin, and not changing drastically over entire body length. Head round and as deep as body. Mouth small and subterminal, not reaching level of eye. Slight chin. Snout protruding. Anterior nostril positioned higher than posterior one. Posterior nostril close to eye. Nostrils separated by less than half snout – eye distance. Bicuspid teeth in single row, nine on upper jaw and seven on lower jaw. Arch of teeth filling entire upper and lower jaw. Most anterior tooth on upper jaw clearly positioned anteriorly of second most teeth left and right of it. Anal-fin origin posterior of dorsal-fin origin. Anal fin longer than dorsal fin. Anterior parts of anal and dorsal fin slightly higher than posterior part. Anal- and dorsal-fin edges straight. Pectoral fin rounded, not reaching tip of pelvic fin. Caudal-fin lobes rounded and broad, overlapping in middle. Deep caudal peduncle. Color in life Body dark brown to reddish. Ventral side of head and belly olive. Dorsal, anal, and caudal fins dark brown or olive at base and slightly translucent at distal end. Pectoral and pelvic fins light gray to light olive, mostly translucent. Lateral line slightly yellowish / red (Figure 16).	en	Dierickx, Katrien, Lunkayilakio, Soleil Wamuini, Bills, Roger, Vreven, Emmanuel (2025): Morphometric synthesis of Pollimyrus (Teleostei, Mormyridae) with the description of four new species. Journal of Fish Biology 106 (3): 846-892, DOI: 10.1111/jfb.15983, URL: https://doi.org/10.1111/jfb.15983
195BB83EFFADFFC1FCA296FD41522EE5.taxon	materials_examined	Color in preserved specimens Body generally light brownish or yellowish. Small brown spots across body. Dorsal and anal fins brownish or yellowish at base and grayish and slightly translucent at distal end. Caudal fin brownish and slightly translucent. Pectoral and pelvic fins light yellow or light brown, slightly translucent. Lateral line slightly visible as slightly darker brown (Figure 15).	en	Dierickx, Katrien, Lunkayilakio, Soleil Wamuini, Bills, Roger, Vreven, Emmanuel (2025): Morphometric synthesis of Pollimyrus (Teleostei, Mormyridae) with the description of four new species. Journal of Fish Biology 106 (3): 846-892, DOI: 10.1111/jfb.15983, URL: https://doi.org/10.1111/jfb.15983
195BB83EFFADFFC1FCA296FD41522EE5.taxon	distribution	Distribution and habitat The specimens of P. weyli were collected in the Mukombe and the Krongwa streams near Dombe of the Mussapa, an affluent to the Lucite River, and Lucite River respectively, a left bank affluent of the Buzi River, Mozambique (Figures 2 and 17). The holotype was caught in a weed-filled non-flowing stream close to the main channel of the Buzi River, some 154 m a. s. l. The vegetation consisted mostly of a fine leafed Potamogeton (like Potamogeton pusillus) and a few water lilies (Nymphaea). The vegetation cover was close to 100 %, where the specimen was caught by raking a big hard-framed hand-net through the weeds. The water depth was less than 1 m with a mixed substrate of sand and rocks. The paratype was caught in a lower-altitude tributary, at 138 m a. s. l., with a good flow, completely covered over by emergent Phragmites. There was no submerged aquatic vegetation. Collected by electrofishing with a Samus backpack. Water depth was less than 1 m with a substrate of cobbles and banks undercut with a lot of rootstocks.	en	Dierickx, Katrien, Lunkayilakio, Soleil Wamuini, Bills, Roger, Vreven, Emmanuel (2025): Morphometric synthesis of Pollimyrus (Teleostei, Mormyridae) with the description of four new species. Journal of Fish Biology 106 (3): 846-892, DOI: 10.1111/jfb.15983, URL: https://doi.org/10.1111/jfb.15983
195BB83EFFADFFC1FCA296FD41522EE5.taxon	etymology	Etymology The specific epithet is a noun honoring the late Professor Dr. Olaf L. F. Weyl (1972 – † 2020) (SAIAB) for his contributions to African ichthyology and his work in the Buzi River system within the framework F I G U R E 1 5 Photographs of preserved specimens of Pollimyrus weyli sp. nov. (a) Holotype (South African Institute for Aquatic Biodiversity [SAIAB] 67639: 51.43 mm SL [standard length]). (b) Paratype (SAIAB 67706: 49.1 mm SL). F I G U R E 1 6 Photograph of dead, but not yet fixed, holotype of Pollimyrus weyli sp. nov. (South African Institute for Aquatic Biodiversity [SAIAB] 67639: 51.43 mm SL [standard length]) from the Mussapa River (by R. B., September 27, 2002). of his PhD, expanding the collections housed at SAIAB and increasing the understanding of the biodiversity in the region.	en	Dierickx, Katrien, Lunkayilakio, Soleil Wamuini, Bills, Roger, Vreven, Emmanuel (2025): Morphometric synthesis of Pollimyrus (Teleostei, Mormyridae) with the description of four new species. Journal of Fish Biology 106 (3): 846-892, DOI: 10.1111/jfb.15983, URL: https://doi.org/10.1111/jfb.15983
