taxonID	type	description	language	source
F11287A48D0AFFFCFBA44F5DFAD0F6B6.taxon	description	(Figs. 1, 2)	en	Souza-Filho, Elinai dos Santos Silva Jesser F. (2017): Species of Excorallana (Isopoda, Corallanidae) from northern and northeastern Brazil, with description of a new species, Excorallana lemoscastroi sp. nov. Nauplius (e 2017026) 25: 1-21, DOI: 10.1590/2358-2936e2017026, URL: https://doi.org/10.1590/2358-2936e2017026
F11287A48D0AFFFCFBA44F5DFAD0F6B6.taxon	materials_examined	Material examined. 1 adult male (MOUFPE 15.138), AS # 2017, Amapá, 3 º 56 ’ 00 ” N 50 º 00 ’ 07 ” W, 81 m depth. 1 adult male, 5 females (2 adults and 3 ovigerous), 34 juveniles (undefined sex) (MOUFPE 976), GM 189, Amapá, 3 ° 50 ’ 00 ” N 49 ° 55 ’ 0 ” W, 69 m depth. 1 adult male and 1 adult female (MOUFPE 873), GM 22, Pará, 00 ° 00 ’ 00 ” N 45 ° 37 ’ 00 ” W, 65 m depth. 3 males (2 adults and 1 juvenile), 32 females (23 adults, 8 juveniles, 1 ovigerous) (MOUFPE 876), GM 28, Pará, 00 º 20 ’ 00 ” N 46 º 03 ’ 05 ” W, 51 m depth. 2 adult males (MOUFPE 874), AS # 1729, Ceará, 2 º 10 ’ 30 ” S 41 º 27 ’ 00 ” W, 82 m depth. 1 adult male, 1 adult female (MOUFPE 872), AS # 1731 A, Ceará, 2 º 30 ’ 00 ” S 41 º 51 ” 00 ” W, 25 m depth. 2 adult males, 5 females (1 adult, 1 ovigerous, 3 juveniles) (MOUFPE 871), AS 1773 A, Ceará, 2 º 40 ’ 30 ” N 48 º 03 ” W, 103 m depth. 4 adult males, 12 females (11 adults, 1 juvenile) (MOUFPE 870), PB # 32 II, Paraíba, 7 º 39 ’ 30 ” S 034 ° 47 ’ 30 ” W, 76 m depth. 1 adult female (MOUFPE 869), Recife 108, Pernambuco, 7 º 59 ’ 00 ” S 34 º 43 ’ 07 ” W, 29 m depth. 1 adult male (MOUFPE 875), Candeias PE, Pernambuco, 08 ° 06 ’ 46 ” S 35 ° 00 ’ 53 ” W. Diagnosis [modified from Lemos de Castro and Lima (1971)]. Body approximately 3 x as long as wide. Head with medium sized eyes, distinctly separated, with two dorsal tubercles situated between eyes. Frontal lamina 2.5 x longer than wide, lateral margins almost parallel, apex rounded (Fig. 17). Antennular peduncle with article 1 not dilated. Antenna reaching pereonite 3. Pereonite 1 with two dorsal tubercles more developed than head, near anterior margin. Pleonites with longitudinal lines of small tubercles and deep median longitudinal groove. Pleotelson triangular with lateral incisions and four tubercles on anterior margin. Uropods and pleotelson margins heavily coated with long setae. Remarks. This species has marked sexual dimorphism. Important variations were found in the material examined. According to Lemos de Castro and Lima (1971), males have two tubercles on the head and two on the pereonite 1, while the female is devoid of tubercles. However, similarly to males, some females examined had two tubercles on the head and two on the pereonite 1, but less developed (females showing male characteristics: MOUFPE 876 – 9 females, MOUFPE 871 – 2 females, MOUFPE 976 – 5 females). Furthermore, according to Lemos de Castro and Lima (1971), males have more tubercles on the pleon than the females, but the same female specimens cited above had tubercles, as in the males (Fig. 1). Geographic distribution. Brazil: Amapá, Pará, Ceará, Paraíba, Pernambuco (Lemos de Castro e Brasil Lima, 1971; Pires-Vanin, 1998; this study) (Fig. 2).	en	Souza-Filho, Elinai dos Santos Silva Jesser F. (2017): Species of Excorallana (Isopoda, Corallanidae) from northern and northeastern Brazil, with description of a new species, Excorallana lemoscastroi sp. nov. Nauplius (e 2017026) 25: 1-21, DOI: 10.1590/2358-2936e2017026, URL: https://doi.org/10.1590/2358-2936e2017026
F11287A48D08FFFAFCD34910FC22F6C4.taxon	description	(Figs. 3, 4)	en	Souza-Filho, Elinai dos Santos Silva Jesser F. (2017): Species of Excorallana (Isopoda, Corallanidae) from northern and northeastern Brazil, with description of a new species, Excorallana lemoscastroi sp. nov. Nauplius (e 2017026) 25: 1-21, DOI: 10.1590/2358-2936e2017026, URL: https://doi.org/10.1590/2358-2936e2017026
F11287A48D08FFFAFCD34910FC22F6C4.taxon	materials_examined	Material examined. 1 sex undefined (MOUFPE 975), AS # 1857, Amapá, 3 º 35 ’ 00 ” S 37 º 57 ’ 00 ” W, 49 m depth. 6 sex undefined (MOUFPE 877), AS # 2017, Amapá, 3 ° 56 ’ 00 ” N 50 ° 00 ’ 07 ” W, 81 m depth. 1 sex undefined (MOUFPE 940), GM 188, Amapá, 3 ° 57 ’ 00 ” N 50 ° 01 ’ 00 ” W, 87 m depth. (MOUFPE 951), AS # 1793 A, Amapá, 4 ° 29 ’ 05 N 50 ° 12 ’ W, 140 m depth. 2 sex undefined (MOUFPE 958), GM 208, Amapá, 4 ° 52 ’ 00 ” N 50 ° 31 ’ 05 ” W, 113 m depth. 1 sex undefined (MOUFPE 974), AS # 1754, Pará, 0 º 06 ’ 00 ” S 45 º 50 ’ 00 ” W, 114 m depth. 1 sex undefined (MOUFPE 961), AS # 1762 A, Pará, 0 º 13 ’ 00 ” N 46 º 55 ’ 00 ” W, 36 m depth. 3 females (2 adults, 1 juvenile), 1 sex undefined (MOUFPE 952), GM 21, Pará, 0 ° 14 ’ 05 ” N 45 ° 04 ’ 02 ” W, 73 m depth. 3 sex undefined (MOUFPE 944), AS # 2467, Pará, 0 ° 52 ’ 05 ” N 47 ° 16 ’ 00 ” W, 43 m depth. 11 females (2 adults, 9 juveniles), 1 sex undefined (MOUFPE 971), GM 2529, Pará, 1 ° 02 › 00 ” N 47 ° 11 ’ 05 ” W, 40 m depth. 1 adult female (drawn) (MOUFPE 957), AS # 1767, Pará, 1 º 32 ’ 30 ” N 47 º 24 ’ 30 ” W, 63 m depth. 1 adult female (MOUFPE 942), AS # 1722, Ceará, 2 º 13 ’ 30 ” S 40 º 43 ’ 30 ” W, 54 m depth. 1 sex undefined (MOUFPE 956), AS # 1773, Ceará, 2 º 40 ’ 30 ” N 48 º 03 ’ 00 ” W, 103 m depth. 1 adult male (MOUFPE 950), CAN 32, Ceará, 2 º 52 ’ 05 ” N 38 º 49 ’ 00 ” W, 72 m depth. 1 adult female (MOUFPE 991), AS # 1999, Ceará, 2 º 57 ’ 00 ” N 49 º 04 ’ 00 ” W. 6 females (4 adults, 2 juveniles), 4 sex undefined (MOUFPE 969), GM II 116, Ceará, 2 ° 57 ’ 05 ” N 48 ° 45 ’ 00 ” W. 1 sex undefined (MOUFPE 960), GM II 2413, Ceará, 4 º 18 ’ 08 ” N 40 º 43 ’ 30 ” W, 88 m depth. 1 sex undefined (MOUFPE 962), PE 30 A, Pernambuco, 7 º 45 ’ 00 ” S 34 º 43 ’ 05 ” W, 19 m depth. 1 sex undefined (MOUFPE 963), REC 126, Pernambuco, 8 º 04 ’ 08 ” S 34 º 47 ’ 02 ” W, 22 m depth. 16 females (15 adults, 1 ovigerous) and 30 sex undefined (MOUFPE 973), SUAPE # 02, Pernambuco, 8 ° 09 ’ 01 ” S 34 º 50 ’ 07 ” W, 18 m depth. 1 adult female (MOUFPE 943), REC 117, 8 º 13 ’ 07 ” S 34 º 51 ’ 03 ” W, 23.5 m depth. 1 sex undefined (MOUFPE 948), ITA 80, Pernambuco, 7 º 38 ’ 58 ” S 34 º 49 ’ 00 ” W. 1 sex undefined (MOUFPE 967), ITA 79, Pernambuco, 7 º 38 ’ 58 ” S, 34 º 49 ’ 00 ” W, 0.5 m depth. 2 juvenile females (MOUFPE 955), ITA 73, Pernambuco, 7 º 41 ’ 12 ” S 34 º 48 ’ 18 ” W, 3.75 m depth. 1 adult female (MOUFPE 945), ITA 45, Pernambuco, 7 º 43 ’ 34 ” S 34 º 49 ’ 06 ” W, 2.1 m depth. 3 sex undefined (MOUFPE 954), PE 29 B, 7 º 44 ’ 00 ” S 34 º 46 ’ 07 ” W, 14 m depth. 2 adult females, 1 sex undefined (MOUFPE 964), PE 29 A, Pernambuco, 7 º 45 ’ 00 ” S 34 º 46 ’ 08 ” W, 15 m depth. 4 juvenile females (MOUFPE 970), ITA 16 A, Pernambuco, 7 º 51 ’ 00 ” S 34 º 49 ’ 00 ” W, 3.9 m depth. 1 adult female (MOUFPE 946), CAN 7, Pernambuco, 8 ° 06 ’ 46 ” S 35 ° 00 ’ 53 ” W, 35 m depth. 1 sex undefined (MOUFPE 13.232), NE III 53 / 2 º P, Pernambuco, 8 ° 08 ’ 05 ” S 34 ° 49 ’ 07 ” W, 19.5 m depth. 1 adult male (MOUFPE 953), CAN 8, Pernambuco, 8 ° 15 ’ 02 ” S 34 ° 50 ’ 00 ” W, 27 m depth. 1 sex undefined (MOUFPE 968), REC 111, Pernambuco, 8 º 16 ’ 02 ” S 34 º 51 ’ 08 ” W, 25 m depth. 1 sex undefined (MOUFPE 972), Recife 144, Pernambuco, 8 º 20 ’ 09 ” S 34 º 48 ’ 03 ” W, 33.5 m depth. Diagnosis [modified from Lemos de Castro (1960)]. Head without tubercles, with large eyes, almost continuous in the midline of the head. Antennular peduncle with article 1 not dilated. Antenna reaching pereonite 2. Frontal lamina bell-shaped, narrower at middle (Fig. 17). Pereonites 1 – 5 smooth dorsally, 6 and 7 with double line of tubercles on posterior margin. Pleonite 1 smooth dorsally. Pleonites 2 – 5 with two transversal lines of tubercles. Pleonite 3 with carina, median longitudinal groove bearing tubercle. Pleotelson triangular, with six tubercles on anterior margin and two lateral incisions. Uropods margins heavily coated with long setae, reaching apex of pleotelson. Geographic distribution. Brazil: Amapá, Pará, Maranhão, Ceará, Rio Grande do Norte, Pernambuco, Espírito Santo, Rio de Janeiro, São Paulo (Lemos de Castro, 1960; Coelho and Koening, 1972; this study) (Fig. 4).	en	Souza-Filho, Elinai dos Santos Silva Jesser F. (2017): Species of Excorallana (Isopoda, Corallanidae) from northern and northeastern Brazil, with description of a new species, Excorallana lemoscastroi sp. nov. Nauplius (e 2017026) 25: 1-21, DOI: 10.1590/2358-2936e2017026, URL: https://doi.org/10.1590/2358-2936e2017026
F11287A48D0EFFF6FC164903FBC4F40B.taxon	description	(Figs. 5 – 8) Etymology. In honor of the late Dr. Alceu Lemos de Castro, for his great contribution on the taxonomic studies of the isopods from the Brazilian coast. Type locality. Brazil, Paraíba (7 º 39 ’ 30 ” S 34 ° 47 ’ 30 ” W). Material examined. Holotype: ovigerous female (MOUFPE 870), PB # 32 II, Paraíba, 7 º 39 ’ 30 ” S 34 ° 47 ’ 30 ” W, 76 m depth. Paratype: 1 specimen, sex undefined due to damaged pleopods (MOUFPE 118), Pernambuco, Itamaracá Island, Forte Orange, in coastal sandstone reefs, 7 ° 47 ’ 30 ” S 34 ° 49 ’ 27 ” W. Diagnosis. Head without tubercles, with small eyes. Antennular peduncle with article 1 not dilated. Antenna reaching pereonite 4. Frontal lamina 3 x longer than wide, narrower in the middle, apex rounded (Fig. 17). Pereon dorsally smooth. Pleonites 2 – 4 with tubercles on posterior margin. Pleonite 3 with one median tubercle; pleonite 4 with two median tubercles. Pleonite 5 with two groups (5 - 5) of small carinae on anterior margin; posterior margin with six tubercles, in two groups (3 - 3) and one median tubercle. Pleotelson triangular with rounded apex and lateral incision, four tubercles on anterior margin arranged in two groups (2 - 2). Uropods slightly surpassing apex of pleotelson; margins covered with plumose setae. Description (based on female, 22 mm, MOUFPE 870). Head 0.4 x wider than long; small eyes. Antennular peduncle 3 - articulated, article 1 not dilated; flagellum 10 - articulated. Antenna reaching pereonite 4; peduncle 5 - articulated; flagellum with 31 articles. Frontal lamina 1.6 x longer than wide, narrower in the middle, apex rounded. Maxilla 1 forming large recurved spine; inner lobe simple, with slightly bulbous end. Maxilliped composed of seven articles, with third article of palp approximately 2.5 x longer than wide. Mandible with elongated incisor process, slightly curved. Pereon dorsally smooth. Pereopod 1 with basis moderately inflated, 1.7 x longer than wide; ischium smooth, approximately 2.2 x longer than wide; merus almost as long as wide, posterodistal angle with one simple seta; carpus 2.6 x wider than long, anterior margin with one small simple seta; propodus with anterior margin bearing two small simple setae, and one simple seta on anterodistal angle; dactylus robust, hook-shaped, about 2.5 x longer than wide. Pereopod 2 with basis moderately inflated, 2.1 x longer than wide; ischium 1.9 x longer than wide, with one small, robust setae on anterodistal angle; merus 1.2 x longer than wide, anterior margin with two groups of robust setae (2 - 2), posterodistal angle with two simple setae, anterodistal angle with one simple seta; carpus anterior margin with two small simple setae; propodus 2.1 x longer than wide, anterior margin with one small simple seta, anterodistal angle with one simple seta; dactylus moderately curved, about 2.4 x longer than wide. Pereopod 3 with basis smooth, 2.3 x longer than wide; ischium smooth, about 2 x longer than wide; merus 1.4 x longer than wide, anterior margin with two simple setae, posterior margin with two long simple setae; carpus 0.5 x wider than long, anterodistal angle with two small simple setae; propodus 2.1 x longer than wide, smooth; dactylus 2.8 x longer than wide, smooth, moderately curved. Pereopod 4 with basis ovate, 1.7 x longer than wide; ischium 1.3 x longer than wide, anterior margin with two groups of simple setae (2 - 2), anterodistal angle with two simple setae and posterodistal angle with two simple (one short and other long) setae; merus almost as long as wide, anterior margin with two simple setae, anterodistal angle with two simple (one short and other long) setae, posterodistal angle with four simple setae; carpus 1.7 x longer than wide, anterior and posterior margin with one small simple seta, anterodistal angle with three (one robust and two simple) setae, posterodistal angle with one simple seta; propodus 4.5 x longer than wide, one seta close to anterodistal angle; dactylus moderately curved, approximately 2.4 x longer than wide. Pereopod 5 with basis moderately ovate, 1.6 x longer than wide, smooth; ischium approximately 2.6 x longer than wide, anterior margin with two groups of simple setae (1 - 2), anterodistal angle with three simple setae, posterodistal angle with five (three short and two long) simple setae; carpus with anterior margin bearing two simple setae; propodus 3 x longer than wide, anterior margin with one simple seta, anterodistal angle with four simple seta, one long and three short; dactylus moderately curved, about 3.3 x longer than wide, narrower than ischium. Pereopod 6 with basis ovate, 2 x longer than wide, smooth; ischium about 1.7 x longer than wide, anterior margin with two simple setae, anterodistal angle with two simple setae and posterodistal angle with four (two long and two short) simple setae; merus 1.4 x longer than wide, one anterior simple seta, anterodistal angle with four (one short and three long) setae, posterodistal angle with eight (two short robust and six simple) setae; carpus 2.1 x longer than wide, anterodistal angle with three (two short and one long) setae, posterodistal angle with six long simple setae; propodus 4 x longer than wide, anterior margin with two small simple setae, anterodistal angle with one simple seta; dactylus moderately curved, 2.4 x longer than wide, narrower than propodus. Pereopod 7 with basis ovate, 2.5 x longer than wide, smooth; ischium about 1.5 x longer than wide, anterior margin with one simple seta, anterodistal angle with two small simple setae and posterodistal angle with four (three long and one short) simple setae; merus 2.2 x longer than wide, three anterior simple setae, anterodistal angle with one seta, posterodistal angle with three (one robust and two simple) setae; carpus 1.4 x longer than wide, anterior margin with one robust seta, anterodistal angle with two (one short and one long) setae, posterodistal angle with five long simple setae; propodus 3.3 x longer than wide, anterior margin with three groups of simple setae (1 - 2), antero and posterodistal angles with two simple setae; dactylus moderately curved about 3.3 x longer than wide, less wide than propodus. Pleonite 1 not visible. Pleonite 2 with tubercles on posterior region. Pleonite 3 with tubercles on posterior margin and one median tubercle. Pleonite 4 with three short carinae on anterior margin; lateral tubercles on posterior margin and two median tubercles. Pereonite 5 with four short carinae on anterior margin; posterior margin with three tubercles on each side of median line and one median tubercle. Pleotelson triangular with rounded apex and lateral incision, four tubercles on anterior margin of pleotelson divided into two groups (2 - 2). Uropods slightly surpassing apex of pleotelson, margins covered with plumose setae. Remarks. This species shares some characters with Excorallana antillensis (Hansen, 1890) from the Caribbean Sea, but they differ regarding (characters of E. antillensis in brackets): (i) the head is 0.4 x as wide as long (0.7 x as wide as long); (ii) the antenna reaches the pereonite 4 (pereonite 3); (iii) the frontal lamina is 1.6 x longer than wide, narrowing in the middle and with a rounded apex (triangular with rounded edges); (iv) pleonite 4 three small carinae (without carinae); (v) pereonite 5 with four short carinae on the anterior margin (without carinae); (vi) endopod and exopod of the uropods acute (rounded); and (vii) pleotelson and uropod margins covered with plumose setae (simple setae). Geographic distribution. Brazil: Paraíba and Pernambuco (Fig. 8).	en	Souza-Filho, Elinai dos Santos Silva Jesser F. (2017): Species of Excorallana (Isopoda, Corallanidae) from northern and northeastern Brazil, with description of a new species, Excorallana lemoscastroi sp. nov. Nauplius (e 2017026) 25: 1-21, DOI: 10.1590/2358-2936e2017026, URL: https://doi.org/10.1590/2358-2936e2017026
F11287A48D02FFF3FC3F4AB9FB04F349.taxon	description	(Figs. 9, 10)	en	Souza-Filho, Elinai dos Santos Silva Jesser F. (2017): Species of Excorallana (Isopoda, Corallanidae) from northern and northeastern Brazil, with description of a new species, Excorallana lemoscastroi sp. nov. Nauplius (e 2017026) 25: 1-21, DOI: 10.1590/2358-2936e2017026, URL: https://doi.org/10.1590/2358-2936e2017026
F11287A48D02FFF3FC3F4AB9FB04F349.taxon	materials_examined	Material examined. 1 adult male, 1 adult female (drawn) (MOUFPE 895), GM 193, Amapá, 03 ° 37 ’ 00 ” N 50 ° 01 ’ 00 ” W, 73 m depth. 4 adult females, 3 sex undefined (MOUFPE 891), GM 189, 03 ° 50 ’ 00 ” N 49 ° 55 ’ 00 ” W, 69 m depth. 1 adult female (MOUFPE 915), AS # 1913, Amapá, 03 º 59 ’ 00 ” N 49 º 35 ’ 00 ” W, 102 m depth. 1 sex undefined (MOUFPE 886), GM 22, Pará, 00 ° 00 ’ 00 ” N 45 ° 37 ’ 00 ” W, 65 m depth. 2 adult females (MOUFPE 906), AS # 1804 B, Pará, 00 º 24 ’ 00 ” N 48 º 10 ’ 00 ” W, 18 m depth. 1 adult female (MOUFPE 13.308), NE I 3252 / 7 º P (REVIZEE), 00 ° 37 ’ 05 ” N 45 ° 40 ’ 05 ” W. 1 sex undefined (MOUFPE 13.341), NE I # 220 / 6 ºP, Pará, 00 ° 37 ’ 05 ” N 45 ° 38 ’ 05 ” W. 1 adult female (MOUFPE 13.233), NE I # 220 / 6 ºP (REVIZEE), Pará, 00 ° 37 ’ 05 ” N 45 ° 38 ’ 05 ” W. 3 adult females (MOUFPE 916), AS # 1755, 00 º 37 ’ 30 ” N 45 º 38 ’ 30 ” W, 240 m depth. 1 sex undefined (MOUFPE 894), AS 2529, Pará, 01 ° 02 ’ 00 ” N 47 ° 11 ’ 05 ” W, 40 m depth. 1 sex undefined (MOUFPE 13.304), NE III # 93 3 ª p REVIZEE ANTARES BENTOS, Pará, 01 º 37 ’ 48 ” S 38 º 10 ’ 12 ” W, 70 m depth. 1 adult male (drawn) (MOUFPE 13.339), REVIZEE NE III # 59 / 2 ºP, Pará, 01 º 37 ’ 48 ” S 38 º 10 ’ 12 ” ’ W, 22 m depth. 1 adult female (MOUFPE 921), AS # 1701, Pará, 01 º 57 ’ 00 ” S 37 º 46 ’ 00 ” W, 55 m depth. 1 sex undefined (MOUFPE 904), AS # 1967, Pará, 01 º 58 ’ 00 ” S, 37 º 46 ’ 00 ” W. 1 adult female (MOUFPE 888), AS # 1723, Ceará, 02 º 00 ’ 00 ” S 41 º 1 ’ 00 ” W, 82 m depth. 1 adult female (MOUFPE 885), PB 32 II, Paraíba, 07 º 39 ’ 30 ” S 34 º 47 ’ 00 ” W, 76 m depth. 1 adult male (MOUFPE 889), Fernando de Noronha, Pernambuco, 03 º 50 ’ 25 ” S 32 ° 24 ’ 41 ” W. 1 juvenile female (MOUFPE 887), ITA 74, Pernambuco, 07 º 41 ’ 00 ” S 34 º 47 ’ 00 ” W, 5.2 m depth. 1 adult female (MOUFPE 893), ITA 17, Pernambuco, 07 º 51 ’ 00 ” S 34 º 49 ’ 00 ” W, 3.9 m depth. 1 sex undefined (MOUFPE 913), REC 126, Pernambuco, 08 º 04 ’ 08 ” S 34 º 47 ’ 02 ” W, 22 m depth. 3 sex undefined (MOUFPE 900), CAN 23 BARCO 11, Pernambuco, 08 ° 14 ’ 05 ” S 34 ° 53 ’ 04 ” W, 17.5 m depth. 1 adult female (MOUFPE 896), REC 140, Pernambuco, 08 º 19 ’ 09 ” S 34 º 53 ’ 05 ” W, 19 m depth. 1 sex undefined (MOUFPE 920), PE 6 B, Pernambuco, 08 º 40 ’ 00 ” S 35 º 00 ’ 02 ” W, 19 m depth. 1 sex undefined (MOUFPE 901), REC 125, Pernambuco, 08 º 04 ’ 04 ” S 34 º 48 ’ 06 ” W, 18 m depth. 1 sex undefined (MOUFPE 897), REC 89, Pernambuco, 08 º 05 ’ 00 ” S 34 º 51 ’ 08 ” W, 9.5 m depth. 1 sex undefined (MOUFPE 911), CAN 80, Pernambuco, 08 ° 09 ’ 07 ” S 34 ° 53 ’ 00 ” W, 12.5 m depth. 1 adult male (MOUFPE 907), REC 97, Pernambuco, 08 º 16 ’ 00 ” S 34 º 55 ’ 00 ” W, 11 m depth. 1 adult female (MOUFPE 909), CAN 48, Pernambuco, 08 ° 12 ’ 08 ” S 34 ° 52 ’ 03 ” W, 13.5 m depth. 2 adult females (MOUFPE 910), CAN # 17, Pernambuco, 08 ° 14 ’ 05 ” S, 34 ° 50 ’ 06 ” W, 27 m depth. 1 sex undefined (MOUFPE 152), CAN 19, Pernambuco, 08 ° 16 ’ 01 ” S 34 ° 16 ’ 01 ” W, 23 m depth. 1 adult female (MOUFPE 899), CAN 25, Pernambuco, 8 ° 16 ’ 09 ” S 34 ° 53 ’ 07 ” W, 19.5 m depth. 1 sex undefined (MOUFPE 903), AKA # 49, Alagoas, 9 º 37 ’ 00 ” S 35 º 30 ’ 40 ” W, 23 m depth. 1 sex undefined (MOUFPE 902), AKA # 58, Alagoas, 9 º 46 ’ 10 ” S 35 º 29 ’ 40 ” W, 41 m depth. 1 adult female (MOUFPE 905), AKA # 59, Alagoas, 9 º 46 ’ 10 ” S 35 º 34 ’ 40 ” W, 31 m depth. Diagnosis [modified from Hansen (1890)]. Head without tubercles, with very large and continuous eyes, except for small anterior area. Frontal lamina approximately 3 x longer than wide, narrower in the middle, apex rounded (Fig. 17). Antennular peduncle with article 1 not dilated. Antenna reaching pereonite 3. Pereonites 1 – 4 dorsally smooth, 5 – 7 with one line of tubercles on posterior margin. Pleon with longitudinal groove bearing tubercles. Pleonite 1 dorsally smooth. Pleonite 2 with transversal tubercles on posterior margin. Pleonites 3, 4 with double line of small tubercles. Pleotelson triangular, with lateral incision, anterior margin with six tubercles arranged in two groups (3 - 3) separated by one groove; lateral margins heavily coated with long setae, apex slightly rounded. Uropods margins heavily coated with setae, reaching apex of pleotelson. Remarks. Two variations were observed regarding the number of tubercles on the pleotelson. According to Hansen (1890), two tubercles are present on the anterior margin of the pleotelson. In the material examined, some specimens had four tubercles, two on each side of the midline, and some had six tubercles, three on each side of the midline. Moreover, some adult specimens of the same size had tubercles that were less developed (Fig. 9). Geographical distribution. Caribbean Sea: Bahamas, Cuba, Puerto Rico; Barbados; Brazil: Amapá, Par á, Maranhão, Piauí, Ceará, Paraíba, Pernambuco, Alagoas, Bahia, Espírito Santo (Hansen, 1890; Richardson, 1905; Lemos de Castro, 1971; Coelho and Koening, 1972; Koening, 1972; Kensley and Schotte, 1989; this study) (Fig. 10). Depth range: 39 – 240 m.	en	Souza-Filho, Elinai dos Santos Silva Jesser F. (2017): Species of Excorallana (Isopoda, Corallanidae) from northern and northeastern Brazil, with description of a new species, Excorallana lemoscastroi sp. nov. Nauplius (e 2017026) 25: 1-21, DOI: 10.1590/2358-2936e2017026, URL: https://doi.org/10.1590/2358-2936e2017026
F11287A48D07FFF1FCF94D42FB1DF7AA.taxon	description	(Figs. 11, 12)	en	Souza-Filho, Elinai dos Santos Silva Jesser F. (2017): Species of Excorallana (Isopoda, Corallanidae) from northern and northeastern Brazil, with description of a new species, Excorallana lemoscastroi sp. nov. Nauplius (e 2017026) 25: 1-21, DOI: 10.1590/2358-2936e2017026, URL: https://doi.org/10.1590/2358-2936e2017026
F11287A48D07FFF1FCF94D42FB1DF7AA.taxon	materials_examined	Material examined. 2 adult and 3 juvenile females (MOUFPE 149), GM 189, Amapá, 03 ° 50 ’ 00 ” N 49 ° 55 ’ 00 ” W, 69 m depth. 1 adult female (MOUFPE 119), AS # 1923, Amapá, 03 º 55 ’ 30 ” N 50 º 20 ’ 00 ” W, 88 m depth. 1 adult male (MOUFPE 13.289), NE III # 93 / 3 ºP, Amapá, 03 º 55 ’ 5 ” N 50 ° 20 ’ 03 ” W; 70 m depth. 1 adult male, 1 adult female (MOUFPE 13. 297), NE I # 213 / 6 ºP (REVIZEE), Pará, 00 ° 13 ’ 00 ” N 46 ° 40 ’ 00 ” W, 87 m depth. 1 adult male (MOUFPE 117), GM 28, Pará, 00 ° 20 ’ 00 ” N 46 ° 03 ’ 05 ” W. 1 adult female (MOUFPE 139), AS # 1763, Pará, 00 º 25 ’ 00 ” S 47 º 17 ’ W, 23 m depth. 1 adult female (MOUFPE 134), GM 200, Pará, 00 ° 30 ’ 10.7 ” S 48 ° 15 ’ 19.2 ” W, 92 m depth. 1 sex undefined (MOUFPE 128), AS # 1751, Pará, 00 º 37 ’ 00 ” S 44 º 40 ’ 00 ” W, 44 m depth. 1 adult female (MOUFPE 124), GM 42, Pará, 01 ° 28 ’ 00 ” N 46 ° 51 ’ 00 ” W, 47 m depth. 1 juvenile female (MOUFPE 13.298), NE III # 75 A / 3 ºP, Pará, 01 º 28 ’ 00 ” S 38 º 40 ’ 00 ” W, 54 m depth. 1 sex undefined (MOUFPE 12.961), AS 1767, Pará, 01 ° 32 ’ 05 ” N 47 ° 24 ’ 05 ” W, 63 m depth. 1 adult male, 4 adult females (MOUFPE 120), GM 45, Pará, 01 ° 32 ’ 00 ” N 47 ° 34 ’ 00 ” W, 67 m depth. 1 adult female (MOUFPE 125), AS # 1767 A, Pará, 01 º 32 ’ 30 ” N 47 º 24 ’ 30 ” W, 63 m depth. 1 sex undefined (MOUFPE 12.969), AS 1701, Pará, 01 ° 57 ’ 00 ” S 037 ° 46 ’ 00 ” W, 57 m depth. 1 sex undefined (MOUFPE 138), AS # 1719 A, Ceará, 02 º 15 ’ 00 ” S 40 º 33 ’ 30 ” W, 55 m depth. 1 female (MOUFPE 127), GM 116, Ceará, 02 ° 57 ’ 05 ” N 48 ° 45 ’ 00 ” W, 81.5 m depth. 1 adult male, 1 adult female (MOUFPE 136), AS # 1857, Ceará, 03 º 35 ’ 00 ” S 37 º 57 ’ 00 ” W, 49 m depth. 1 juvenile female (MOUFPE 131), ITA 92, Pernambuco, 07 º 36 ’ 00 ” S 34 º 48 ’ 00 ” W, 0.65 m depth. 2 sex undefined (MOUFPE 140), ITA 74, Pernambuco, 07 º 41 ’ 00 ” S 34 º 47 ’ 00 ” W, 5.2 m depth. 1 adult female (MOUFPE 148), ITA 46, Pernambuco, 07 º 43 ’ 36 ” S 34 º 49 ’ 24 ” W, 3.7 m depth. 1 juvenile female (MOUFPE 144), ITA 43, Pernambuco, 07 º 44 ’ 00 ” S 34 º 48 ’ 00 ” W, 1.6 m depth. 1 adult female, 1 adult male (MOUFPE 116), PE. 29 A, Pernambuco, 07 º 45 ’ 00 ” S 34 º 46 ’ 08 ” W, 14 m depth. 1 adult female (MOUFPE 150), ITA 27, Pernambuco, 07 º 49 ’ 00 ” S 34 º 49 ’ 13 ” W, 0.8 m depth. 1 sex undefined (MOUFPE 118), ITA Forte Orange reefs, Pernambuco, 7 ° 49 ’ 00 ” S 34 ° 49 ’ 13.0 ” W. 1 adult female (MOUFPE 115), ITA 11, Pernambuco, 7 º 50 ’ 00 ” S 34 º 49 ’ 00 ” W, 1 m depth. 1 adult female (MOUFPE 137), Candeias 27 – 108, Pernambuco, 7 ° 50 ’ 08 ” S 34 ° 42 ’ 00 ” W. 1 sex undefined (MOUFPE 151), ITA 17, Pernambuco, 7 º 51 ’ 00 ” S 34 º 49 ’ 00 ” W, 3.9 m depth. 2 adult females (MOUFPE 133), CAN 95, Pernambuco, 8 ° 09 ’ 07 ” S 34 ° 45 ’ 00 ” W, 31.5 m depth. 1 adult female (MOUFPE 147), REC 95, Pernambuco, 8 º 09 ’ 07 ” S 34 º 45 ’ 00 ” W, 31.5 m depth. 1 juvenile female (MOUFPE 122), REC 4, Pernambuco, 8 º 09 ’ 09 ” S 34 º 45 ’ 08 ” W, 27 m depth. 1 sex undefined (MOUFPE 129), CAN 19, Pernambuco, 8 º 10 ” 00 ” S 34 º 42 ’ 00 ” W. 1 sex undefined (MOUFPE 126), CONDEPE Suape # N 17, Pernambuco, 8 º 10 ’ 00 ” S 34 º 51 ’ 05 ” W, 13 m depth. 1 sex undefined (MOUFPE 121), CONDEPE Suape # 9, Pernambuco, 8 º 30 ’ 00 ” S 34 º 58 ’ 00 ” W, 9 m depth. 1 adult male (drawn) (MOUFPE 123), Pina-PE _ 03, Pernambuco, 8 º 47 ’ 05 ” S 34 ° 55 ’ 00 ” W, 36 m depth. Diagnosis [modified from Lemos de Castro (1960)]. Head without tubercles, with medium sized eyes, not reaching anterior margin of head. Antennular peduncle with article 1 very dilated. Antenna reaching pereonite 2. Frontal lamina trapezoidal (Fig. 17). Pereonites 1 – 5 smooth dorsally, 6 and 7 with small tubercles (nearly imperceptible) laterally on posterior margin. Pleonite 1 dorsally smooth. Pleonite 2 with small tubercles on posterior margin. Pleon with longitudinal groove in the middle, extending from pleonites 3 – 5, with longitudinal line of tubercles. Pleonites 3 – 5 with double transversal line of tubercles. Pleotelson triangular, acute apex, with lateral incision on each side; anterior margin with four tubercles, arranged in two groups (2 - 2); lateral margins heavily coated with setae; midline with soft groove; two small tubercles prior to lateral incisions. Uropods slightly surpassing tip of pleotelson, margins heavily coated with long setae. Remarks. According to Lemos de Castro (1960), the uropods have the same length as the pleotelson, while in our material, they exceed the pleotelson. Also, the two rows of posterior tubercles on pereonites 6 and 7 found in E. richardsoni were not found, but instead one row of very small tubercles, and the median area was smooth dorsally. Lemos de Castro (1960) also noted that E. richardsoni has two rows of tubercles on pleonites 2 – 5, while the specimens examined herein have only two rows of tubercles on the posterior margin of the segment. Finally, Lemos de Castro (1960) reported that the males identified as Corallana acuticauda Miers, 1881 (now assigned to genus Excorallana) from Alagoas, Brazil, by Richardson (1900) was actually a misidentification, and the specimens belong to E. richardsoni. Pires-Vanin (1998) agreed with Lemos de Castro’s observation, and therefore the geographical distribution of E. acuticauda should be restricted to the type locality (Hotspur Bank off southern Bahia, Brazil). Geographic distribution. Brazil: Amapá, Pará, Maranhão, Ceará, Rio Grande do Norte, Pernambuco, Alagoas, Espírito Santo, Rio de Janeiro (Lemos de Castro, 1960; Coelho and Koening, 1972; Koening, 1972; Pires-Vanin, 1998; this study) (Fig. 12). Depth range: 0.65 – 94 m.	en	Souza-Filho, Elinai dos Santos Silva Jesser F. (2017): Species of Excorallana (Isopoda, Corallanidae) from northern and northeastern Brazil, with description of a new species, Excorallana lemoscastroi sp. nov. Nauplius (e 2017026) 25: 1-21, DOI: 10.1590/2358-2936e2017026, URL: https://doi.org/10.1590/2358-2936e2017026
F11287A48D05FFEFFC0149E1FD02F555.taxon	description	(Figs. 13, 14)	en	Souza-Filho, Elinai dos Santos Silva Jesser F. (2017): Species of Excorallana (Isopoda, Corallanidae) from northern and northeastern Brazil, with description of a new species, Excorallana lemoscastroi sp. nov. Nauplius (e 2017026) 25: 1-21, DOI: 10.1590/2358-2936e2017026, URL: https://doi.org/10.1590/2358-2936e2017026
F11287A48D05FFEFFC0149E1FD02F555.taxon	materials_examined	Material examined. 2 adult females (1 drawn) (MOUFPE 13.012), NE IV III 4 ªp. REVIZEE BENTOS, Amapá, 01 º 37 ’ 59 ” S 38 º 09 ’ 12 ” W. Diagnosis [modified from Hansen (1890)]. Head without tubercles, with medium sized eyes. Frontal lamina wider than long, sub-trapezoidal (Fig. 17). Antennular peduncle with article 1 very dilated. Antenna reaching pereonite 3. Pereon smooth dorsally. Pleon with pleonite 1 not visible. Pleonites 2 – 5 with tubercles on posterior margin, but pereonite 3 smooth in the middle and pereonite 4 with only one median small tubercle. Pleonite 5 with one short median tubercle and three lateral tubercles. Pleotelson triangular, anterior margin with two tubercles, acute apex and lateral incision. Uropods slightly surpassing apex of pleotelson, margins coated with setae. Remarks. The two specimens examined in this study showed some differences from the original description of Hansen (1890) and that by Lemos de Castro and Lima (1971) concerning the number of tubercles on pleonite 5 and on the anterior margin of the pleotelson. Hansen (1890) described this species as having the pleon smooth and only two tubercles on the anterior margin of the pleotelson. According to Richardson (1905), Hansen’s material was a juvenile specimen, probably a female in the process of ecdysis (Kensley and Schotte, 1989). Lemos de Castro and Lima (1971) illustrated tubercles only on pleonite 5 and two tubercles on the anterior margin of the pleotelson. However, in the material examined, adult females measuring 5 mm and 6 mm, have tubercles on pleonites 1 – 5, very short tubercles on pleonites 1 – 4, and four tubercles on the anterior margin of the pleotelson. We consider these differences to be morphological variations between age and localities, so they do not differ sufficiently to warrant the establishment of a new species. Additional specimens from the vicinity of the type locality are needed for a species redescription. Geographic distribution. USA: Florida; Caribbean Sea: Saint Thomas; Brazil: Amapá, Rio de Janeiro (Lemos de Castro, 1971; Kensley and Schotte, 1989; Pires-Vanin, 1998; this study) (Fig. 14).	en	Souza-Filho, Elinai dos Santos Silva Jesser F. (2017): Species of Excorallana (Isopoda, Corallanidae) from northern and northeastern Brazil, with description of a new species, Excorallana lemoscastroi sp. nov. Nauplius (e 2017026) 25: 1-21, DOI: 10.1590/2358-2936e2017026, URL: https://doi.org/10.1590/2358-2936e2017026
F11287A48D1BFFEDFC2E4CAAFB9FF654.taxon	description	(Figs. 15, 16)	en	Souza-Filho, Elinai dos Santos Silva Jesser F. (2017): Species of Excorallana (Isopoda, Corallanidae) from northern and northeastern Brazil, with description of a new species, Excorallana lemoscastroi sp. nov. Nauplius (e 2017026) 25: 1-21, DOI: 10.1590/2358-2936e2017026, URL: https://doi.org/10.1590/2358-2936e2017026
F11287A48D1BFFEDFC2E4CAAFB9FF654.taxon	materials_examined	Material examined. 1 adult male (drawn) (MOUFPE 13.344), NE I # 218 / 6 ºP (REVIZEE), Amapá, 00 ° 37 ’ 05 ” N 044 ° 38 ’ 05 ” W, 44.94 m depth. 1 sex undefined (MOUFPE 13.275), NE III 90 A / 3 ºP Antares Bentos, Rio Grande do Norte, 3 º 48 ’ 00 ” S 33 º 40 ’ 00 ” W, 70 m depth. 1 adult female (MOUFPE 13.235), NE I # 70 / 3 ºP REVIZEE, Rio Grande do Norte, 3 º 48 ’ 00 ” S 34 º 45 ’ 00 ” W, 63 m depth. 1 sex undefined (MOUFPE 880), Praia de Tambaú, Paraíba, 7 ° 06 ’ 52.8 ” S 34 ° 49 ’ 17.3 ” W. 1 sex undefined (MOUFPE 884), REC # 106, Pernambuco, 8 º 00 ’ 01 ” S 34 º 45 ’ 08 ” W. 1 adult male, 1 adult female (MOUFPE 883), Tamandaré, Pernambuco, 8 ° 45 ’ 31 ” S 35 ° 05 ’ 11 ” W. Diagnosis [modified from Hansen (1890)]. Head without tubercles, continuous eyes, except small anterior median area. Frontal lamina linguiform, longer than wide, narrower in the middle and slightly rounded apex (Fig. 17). Antennular peduncle with article 1 not dilated. Antenna reaching pereonite 2. Pereon dorsally smooth. Pleon with few tubercles. Pleotelson narrow, long, without lateral incisions, with median groove; distal margin rounded, crenulated, apical crenulations more developed; anterior margin with four very small tubercles, without lateral incision. Uropods reaching apex of pleotelson. Remarks. Lemos de Castro and Lima (1971) redescribed this species based on material collected in Amapá (02 ° 57 ’ N 49 ° 04 ’ W). In this description, they stated that the pleotelson has a lateral incision; however in their figures 35 and 36 the lack of any incision mentioned in their description is clear (p. 153). Additionally, the lateral incision is absent in the original description of Hansen (1890), as well as in the material studied herein. Geographic distribution. Caribbean Sea: Bahamas, Cuba, Yucatan Peninsula, Puerto Rico, Brazil: Amapá, Rio Grande do Norte, Paraíba, Pernambuco (Hansen, 1890; Richardson, 1905; Coelho and Koening, 1972; Kensley and Schotte, 1989; Pires-Vanin, 1998; this study) (Fig. 16).	en	Souza-Filho, Elinai dos Santos Silva Jesser F. (2017): Species of Excorallana (Isopoda, Corallanidae) from northern and northeastern Brazil, with description of a new species, Excorallana lemoscastroi sp. nov. Nauplius (e 2017026) 25: 1-21, DOI: 10.1590/2358-2936e2017026, URL: https://doi.org/10.1590/2358-2936e2017026
