Epimeria Costa in Hope, 1851

Wang, Yanrong, Zhu, Chaodong, Sha, Zhongli & Ren, Xianqiu, 2020, Epimeria liui sp. nov., a new calcified amphipod (Amphipoda, Amphilochidea, Epimeriidae) from a seamount of the Caroline Plate, NW Pacific, ZooKeys 922, pp. 1-11 : 1

Genus Epimeria Costa in Hope, 1851

Diagnosis

(from d’Udekem d’Acoz and Verheye 2017). Body smooth or covered with teeth or processes, but not sword-like or forming large longitudinal carinae. Head with developed ventral lobe; rostrum usually well developed; eyes usually present, bulging. Antenna 1 peduncular articles short, with accessory flagellum. Upper lip entire or symmetrically notched. Mandible with incisor and molar present; lacinia mobilis present on both mandibles. Lower lip without inner lobes. Maxilla 1 with 2-articulate palp. Coxae 1-4 progressively longer, coxae 1-3 narrow, coxa 4 five-sided; coxae 5-6 with or without tooth or process projecting laterally. Gnathopods weak; gnathopod 2 longer than gnathopod 1. Pereiopod 6> pereiopod 5> pereiopod 7; basis of that with longitudinal carina on both sides. Coxal gill from gnathopod 2 to pereiopod 7. Oostegite large, from gnathopod 2 to pereiopod 6. Uropods well developed. Urosomite 1 always with a rounded or tooth-like process. Telson incised or cleft, rarely emarginate or entire.