230 U.S. NATIONAL MUSEUM BULLETIN 271 



Accessory flagellum articulate, of medium length; upper lip bilobate; 

 lower lip with inner lobes; inner plate of maxilla 1 with four or fewer 

 terminal setae; gnathopods not eusirid, subchelate, article 5 lobate, 

 shorter than article 6 ; pereopods 3-5 with articles 4-6 each not longer 

 than article 2. Species: 1, Micronesia, littoral. 



Rozinante Stebbing 



Rozinante Stebbing, 1894; 1906. 



Type-species: Paramphithoe fragilis Goes, 1866 (original desig- 

 nation). See Shoemaker, 1930. 



Accessory flagellum absent; lower lip with inner lobes obsolete 

 (examined by me) ; inner plate of maxilla 1 with four or fewer terminal 

 setae; gnathopods not eusirid, subchelate, article 5 not lobate, equal 

 to or slightly longer than article 6; pereopods 3-5 with articles 5-6 

 (not article 4) each longer than article 2 (examined by me); antero- 

 ventral cephalic corner with large tooth projecting forward to end of small 

 rostrum, coxa 1 produced forward to anterior edge of eye. Species: 1, 

 arctic-boreal, N. Atlantic, littoral (to 372 m). 



Schraderia Pfeffer 



Schraderia Pfeffer, 1888.— Stebbing, 1906.— K. H. Barnard, 1932. 



Atyloides Stebbing, 1888. 



Type-species: S. gracilis Pfeffer, 1888 (monotypy). 



Accessory flagellum articulate, of medium length; lower lip lacking 

 inner lobes; inner plate of maxilla 1 densely lined with setae along 

 medial edge; gnathopods not eusirid, subchelate, article 5 not lobate, 

 equal to article 6 in length, in gnathopod 2 especially articles 5-6 

 greatly elongate and sublinear; pereopods 3-5 with articles 4-6 each 

 not longer than article 2. Species: 2, antarctic, littoral. 



Zaramilla Stebbing 



Zaramilla Stebbing, 1888; 1906. 



Type-species: Z. ker gueleni Stehhing, 1888 (monotypy). 



Accessory flagellum absent; lower lip with scarcely discrete inner 

 lobes; inner plate of maxilla 1 densely lined w'ith setae on medial edge; 

 gnathopods not eusirid, subchelate, article 5 not lobate, slightly 

 longer than article 6; pereopods 3-5 with articles 4-6 each not longer 

 than article 2, article 4 broadly expanded (especially Bovallia and 

 Pontogeneia) , article 4 two thirds as wide as article 2 (Pontogeneiella) ; 

 antennae subequal in length, coxa 4 strongly excavate posteriorly {Pros- 

 tebbingia) ; dactyli of pereopods 3-4 as long as article 6, pereopods re- 

 sembling those of oedicerotids (combining character). Species: 1, 

 Kerguelen, littoral. Probably referrable to Haustoriidae and included 

 in that family key (p. 252) ; absence of accessory flagellum in contrast 

 to Haustoriidae. 



