MARINE GAMMARIDEAN AMPHIPODA 211 



Key to the Genera of Eophliantidae 



1. Uropod 3 biramous (figs. 88l,o,q) 2 



Uropod 3 not biramous (figs. 88m,n,p) 4 



2. Maxilla 1 lacking palp (fig. 88a) 3 



Maxilla 1 with small palp (fig. 88c) Eophliantis ^ 



3. Uropod 3 with short, broad rami less than half as long as peduncle (fig. 88o), 



gnathopod 2 powerful (fig. 88i) Amphitholina 



Uropod 3 with slender rami as long as peduncle (fig. 881), gnathopod 2 feeble 

 (fig. 88j) Biancolina 



4. Pleonites 5-6 small but distinct .") 



Pleonites 5-6 coalesced 6 



5. Antennae half as long as head, maxilla 1 lacking palp, mandible lacking 



molar (theoretical position) Ceinina 



Antennae as long as head, maxilla 1 with minute palp, mandible bearing 

 small molar (one member at least) Eophliantis* 



6. Pleopods uniramous (fig. 88k) Cylindryllioides 



Pleopods biramous 7 



7. Pereonite 1 with a ventral flange (fig. 87d) Bircenna 



Pereonite 1 lacking a ventral flange 8 



8. Coxae tiny, serially noncontiguous, flagellum of antenna 2 biarticulate, 



mandibular palp absent Ceinina 



Coxae small, serially contiguous, flagellum of antenna 2 about 6-articulatc, 

 mandible with vestigal palp Wandelia 



1 Sheard (1936a) and Nicholls (1939) have different concepts of uropod 3 on Eophliantis. 



Genera of Eophliantidae 



Amphitholina Ruffo 



Amphitholina Ruffo, 1953. 



Type-species: Amphithoe cuniculus Stebbing, 1874 (original des- 

 ignation). See Chevreux and Fage, 1925 (as Biancolina cuniculus). 



Maxilla 1 lacking palp; pleonites 5-6 apparently separate; uropod 

 3 with two short broad rami, half as long as peduncle, gnathopod 2 

 powerful {Biancolina). Species: 1, Mediterranean, littoral. 



Biancolina Delia Valle 



Biancolina Delia Valle, 1893.— Stebbing, 1906 (in part). 



Type-species: B. algicola Delia Valle, 1893 (monotypy). 



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

 slender rami as long as peduncle, gnathopod 2 feeble (Amphitholina). 

 Species: 2, Mediterranean, Australia, littoral. 



