Grandidierella fasciata Ariyama, 1996

Kim, Young-Hyo & Heo, Jun-Haeng, 2016, Four new records of the gammarids (Crustacea, Amphipoda) from Korean waters, Journal of Species Research 5 (3), pp. 498-502 : 3-4

1. Grandidierella fasciata Ariyama, 1996

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Grandidierella fasciata Ariyama, 1996: 167 , figs. 1-5.

Material examined. 1 male, (NIBRIV0000325974), Korea, Jeollanam­do, Gangjin­gun, Misan , 2 July 2004, collected by YH Kim.

Diagnosis. Body subcylindrical, medium sized, about 5.3 mm. Rostrum short. Lateral cephalic lobe short and blunt. Eye rounded, small sized. Antenna 1, peduncular article 2 longer than article 1; accessory flagellum short, uniarticulate. Antenna 2 shorter than antenna 1; peduncular article 5 slightly longer than article 4. Coxae small, relatively short. Gnathopod 1 carpochelate, much larger than gnathopod 2; basis broad, anterior margin straight, posterior margin convex; merus subrectangular, with acute projection posteroditally; carpus massive, subovate; palm characteristic in form with 2 posterior large and 1 posterodistal small acute projections. Gnathopod 2 subchelate; propodus, palm transverse. Pereopods 6, 7 slender, similar to each other. Epimera 1­3 rounded posteroventrally. Urosomites 1­3 separate. Uropods 1, 2 biramous; rami shorter than peduncle, subequal in length. Uropod 3 uniramous; ramus slightly longer than peduncle. Telson entire, wider than long.

Distribution. Japan, Korea.

Remarks. Grandidierella fasciata is easily distinguishable by having the 3 posterior projections on carpus of gnathopod 1. Our male specimen is well accorded with Ariyama(1996) ’s original description.

Figures

Fig. 1. Grandidierella fasciata Ariyama, 1996, male:A, habitus, lateral view; B, Gnathopod 1. Scale bars=1 mm (A), 0.5 mm (B).