MARINE GAMMARIDEAN AMPHIPODA 241 



Eriopisella Chevreux 



Eriopisella Chevreux, 1920. 



Type-species: E. pusilla Chevreux, 1920 (monotypy). 



Accessory flagellum 2- articulate or less; lower lip with scarcely 

 defined inner lobes fused with outer lobes; inner plates of maxillae 

 1-2 setose only terminally; gnathopods small, subchelate, equal in 

 size; uropod 3 greatly exceeding uropod 1, immensely elongate, outer 

 ramus 2-articulate, article 2 much shorter than article 1, inner ramus 

 very short, scale-like; telson deeply cleft; body lacking dorsal teeth 

 or spines. Species: 3, France, Seychelles, India, littoral. 



Falklandella Schellenberg 



Falklandella Schellenberg, 1930, 1931. 



Type-species: F. obtusa Schellenberg, 1930, 1931 (monotypy). 



Accessory flagellum 1 -articulate; lower lip lacking inner lobes; 

 inner plates of maxillae 1-2 densely setose medially; gnathopod 1 

 larger than gnathopod 2, subchelate; uropod 3 short, not exceeding 

 uropod 1, rami semirectangular, outer 1 -articulate, inner half as long 

 as outer; telson short, emarginate; body lacking dorsal teeth or 

 spines. Species: 2, Falkland Islands, freshwater close to sea. 



Gamtnar acanthus Bate 



Gammaracanthus Bate, 1862. — Stebbmg, 1906. 



Type-species: Gammarus loricatus Sabine, 1821 (original designa- 

 tion!, Bate, 1862, p. 203). See Gurjanova, 1951. 



Accessory flagellum 3- or more articulate; lower lip with inner 

 lobes obsolescent; inner plate of maxilla 1 setose only terminally, of 

 maxilla 2 densely setose medially; gnathopods large, nearly equal in 

 size, nearly eusirid in structure (fig. 96a) ; uropod 3 slightly exceeding 

 uropod 1, rami subequal, foliaceous or subfoHaceous; outer 1-artic- 

 ulate; telson very short, cleft, lobes gaping; body carinate through- 

 out. Species: 1, arctic and Caspian Sea, littoral. 



Gamtnarella Bate, new synonymy 



Pherusa Leach, 1814a. — Stebbing, 1906 (homonym, Polychaeta). 



GammareJla Bate, 1857a. 



Pherusana J. L. Barnard, 1964c (new name for Pherusa). 



Type-species: Pherusa jucicola Leach, 1814a (monotypy and 

 subsequent synonymy). See Walker, 1891a, b; Chevreux and 

 Fage, 1925. 



Accessory flagellum 4- or more articulate; lower lip -with inner 

 lobes; inner plates of maxillae 1-2 densely setose medially; gnathopods 



