MARINE GAMMARIDEAN AMPHIPODA 213 



Ceinina Stephensen 



Ceinina Stephensen, 1933. 



Type-species: C. japonica Stephensen, 1933 (monotypy). See 

 Giirjanova, 1951; Nicholls, 1939 (as Wandelia japonensis) . 



Maxilla 1 lacking palp; pleonites apparently coalesced; uropod 3 

 with one ramus ; antennae half as long as head, mandible lacking molar 

 (Eophliantis) ; coxae tiny, serially noncontiguous (Wandelia). Species: 

 1, Japan, littoral. 



Cylindryllioides Nicholls 



Cylindryllioides Nicholls, 1938. 



Type-species: C. mawsoni Nicholls, 1938 (original designation). 



Maxilla 1 lacking palp; pleonites 5-6 coalesced; uropod 3 lacking 

 rsLini; pleopods uniramous (combining character) . Species: 1, antarctic, 

 littoral. 



Eophliantis Sheard 



Eophliantis Sheard, 1936a. 



Type-species: E. tindalei Sheard, 1936a (original designation). 



Maxilla 1 with small palp; pleonites 5-6 separate; uropod 3 with 

 two blunt rami (Sheard), no rami (Nicholls, 1939) ; antennae as long as 

 head, mandible bearing small molar (Ceinina). Species: 1, Tasmania, 

 littoral. 



Wandelia Chevreux 



Wandelia Chevreux, 1906a; 1906b. 



Type-species: W. crassipes Chevreux, 1906a (original designation) ; 

 1906b. 



Maxilla 1 lacking palp; pleonites 5-6 coalesced; uropod 3 lacking 

 rami; coxae small, serially contiguous (Ceinina). Species: ?2, antarctic 

 to N. Pacific, littoral. 



Eusiridae 



[including Pontogeneiidae] 



Figures 89-93 



Diagnosis. — Accessory flagellum either a single styliform article 

 or two short articles, a scale or absent; telson clefi. See Calliopiidae, 

 Pleustidae, Liljeborgiidae, Gammaridae, Vitjazianidae, Astyridae, 

 Lepechinellidae, Paramphithoidae. 



Description. — Accessory flagellum absent, or composed of a scale 

 or one long article or two short articles; rostrum present or obsolete; 

 upper lip not incised (bilobed in one genus) ; mandibles bearing 3- 



