Solitroides motokawai, Suzuki & Nakano & Nguyen & Nguyen & Morino & Tomikawa, 2017

Suzuki, Yuya, Nakano, Takafumi, Nguyen, Son Truong, Nguyen, Anh Thi Thu, Morino, Hiroshi & Tomikawa, Ko, 2017, A new landhopper genus and species (Crustacea: Amphipoda: Talitridae) from Annamite Range, Vietnam, Raffles Bulletin of Zoology 65, pp. 304-315 : 306

Solitroides motokawai , new species

( Figs. 1–7 )

Material examined. Holotype: female (6.5 mm, VNMN 2017.01 ), Ngoc Linh Nature Reserve , Kon Tum Province, Vietnam (15°05′14.2″N, 107°51′19.6″E; elevation 1833 m), coll. T. Nakano, 20 September 2014 . Paratypes: two females (10.5 mm, KUZ Z1865 ; 8.2 mm, KUZ Z1866 ) and one juvenile (3.1 mm, VNMN 2017.02 ), same data as holotype ; four females (7.8 mm, KUZ Z1867 ; 6.9 mm, VNMN 2017.03 ; 6.4 mm, VNMN 2017.04 ; 7.9 mm, KUZ Z1868 ), near the type locality (15°05′14.1″N, 107°51′23.8″E; elevation 1771 m), coll. T. Nakano, 17 September 2014; and two females (8.1 mm, VNMN 2017.05 ; 6.8 mm, KUZ Z1869 ), near the type locality (15°05′02.7″N, 107°51′11.8″E; elevation 1986 m), coll. T. Nakano, 19 September 2014 .

Figures

Fig. 1. Solitroides motokawai, new genus & species, holotype (VNMN 2017.01), lateral view. Scale bar = 1 mm.

Fig. 2. Solitroides motokawai, new genus & species, holotype (VNMN 2017.01). A, head, lateral view; B, antenna 1, lateral view; C, antenna 2, lateral view; D, upper lip, anterior view; E, left mandible, medial view; F, right mandible, lateral view; G, lower lip, ventral view; H, maxilla 1, dorsal view; I, maxilla 2, dorsal view. Scale bars = 0.5 mm [A–C, G]; 0.1 mm [D–F, H, I].

Fig. 3. Solitroides motokawai, new genus & species, holotype (VNMN 2017.01). A, maxilliped, dorsal view; B, gnathopod 1, lateral view; C, gnathopod 2, lateral view; D, pereopod 3, lateral view; E, dactylus of pereopod 3. Scale bars = 0.1 mm [A, E]; 0.5 mm [B–D].

Fig. 4. Solitroides motokawai, new genus & species, holotype (VNMN 2017.01). A, pereopod 4, medial view; B, dactylus of pereopod 4, medial view; C, pereopod 5, medial view; D, dactylus of pereopod 5, medial view; E, pereopod 6, medial view; F, dactylus of pereopod 6, medial view; G, pereopod 7, lateral view; H, dactylus of pereopod 7, lateral view. Scale bars = 1.0 mm [A, C, E, G]; 0.1 mm [B, D, F, H].

Fig. 5. Solitroides motokawai, new genus & species, holotype (VNMN 2017.01). A, coxal gill of gnathopod 2, lateral view; B, coxal gill of pereopod 3, lateral view; C, coxal gill of pereopod 4, lateral view; D, coxal gill of pereopod 5, lateral view; E, coxal gill of pereopod 6, lateral view; F, oostegite of gnathopod 2, lateral view; G, oostegite of pereopod 3, lateral view; H, oostegite of pereopod 4, lateral view; I, oostegite of pereopod 5, lateral view; J, epimeral plate 1, lateral view; K, epimeral plate 2, lateral view; L, epimeral plate 3, lateral view; M, pleopod 1, posterior view; N, pleopod 2, posterior view; O, pleopod 3, posterior view. Scale bars = 0.5 mm [A–L]; 0.1 mm [M–O].

Fig. 6. Solitroides motokawai, new genus & species, holotype (VNMN 2017.01). A, uropod 1, lateral view; B, uropod 2, ventral view; C, uropod 3, dorsal view; D, telson, dorsal view. Scale bars = 0.5 mm [A, B]; 0.1 mm [C, D].

Fig. 7. Scanning electron micrographs of Solitroides motokawai, new genus & species, paratype (KUZ Z1865). A, maxilliped, ventral view; B, distal part of maxilliped palp, arrowhead indicates boundary between articles 3 and 4, ventral view. Scale bars = 100 µm [A]; 50µm [B].