410 U.S. NATIONAL MUSEUM BULLETIN 271 



6. Uropod 3: peduncle distinct from ramus (fig. 147o) 7 



UropodS: peduncle not distinct from ramus (fig. 147n) 8 



7. Pleopod 3: inner ramus well developed (fig. 147/i) Iphinotus 



Pleopod 3: inner ramus vestigial (fig. 147j) Quasi modia 



8. Pleopod 3: inner ramus setose, half as long as outer. 



Pariphinotus and Heterophlias 

 Pleopod 3: inner ramus a tiny nonsetose scale (fig. 14:7k) . . . Iphiplateia 



Genera of Phliantidae 



Ceina Delia Valle 



Ceina Delia Valle, 1893.— Stebbing, 1906.— Nicholls, 1939. 

 Periphlias Pirlot, 1936. 



Type-species: Nicea egregia Chilton, 1883 (monotypy). 



Maxilla 1 lacking palp; maxillipedal palp 4-articulate ; gnathopods 

 subchelate; [pleopod 3 unknown, apparently biramous, rami subequal 

 to each other]; uropod 3 with one ramus. Species: 2, Sulu Sea, New 

 Zealand, Juan Fernandez Island, littoral. 



Heterophlias Shoemaker 



Heterophlias Shoemaker, 1933a. 



Type-species: H. seclusus Shoemaker, 1933a (monotypy). 



Maxilla 1 lacking palp; maxillipedal palp 4-articulate; gnathopods 

 simple; inner ramus of pleopod 3 half as long as outer; uropod 3 lack- 

 ing rami. Possibly not distinct from Pariphinotus. Species: 1, pan- 

 America, tropical, littoral. 



Iphinotus Stebbing 



Iphigenia Thomson, 1882 (homonym, MoUusca). 

 Iphinotus Stebbing, 1899a; 1906. 



Type-species: Iphigenia typica Thomson, 1882 (monotypy and 

 subsequent synonymy). 



Maxilla 1 lacking palp; maxillipedal palp 4-articulate; gnathopods 

 simple; rami of pleopod 3 well developed, equal; uropod 3 uniramous. 

 Species: 1, New Zealand, littoral. 



Iphiplateia Stebbing 



Iphiplateia Stebbing, 1899a; 1906. 



Type-species: I. whiteleggei Stebhing, 1899a (monotypy). 



Maxilla 1 lacking palp; maxillipedal palp 4-articulate; gnathopods 

 simple; inner ramus of pleopod 3 a tiny, nonsetose scale; uropod 3 

 lacking rami. Species: 1, E. Australia, littoral. 



