222 U.8. NATIONAIj museum bulletin 271 



Atyloella Schellenberg 



Atyloella Schellenberg, 1929a. 



Type-species: Atylopsis magellanicus Stebbing, 1888 (monotypy). 



Accessory flagellum articulate, short; lower lip with inner lobes; 

 inner plate of maxilla 1 with four or five terminal and medial setae; 

 gnathopods not eusirid, subchelate, article 5 not lobate, shorter than 

 6; pereopods 3-5 with each of articles 4-6 not longer than article 2; 

 postantennal cephalic angle acutely produced (Liouvillea) ; epistome with 

 anterior process.* Species: 3, antarctic, littoral (to 441 m). 



*See footnote with Meteusiroides (p. 227). 



Bathyschraderia Dahl 



Bathyschraderia Dahl, 1959. 



Type-species: B. magnijica Dahl, 1959 (monotypy). 



Accessory flagellum very short but articulate; lower lip lacking 

 inner lobes; inner plate of maxilla 1 densely furnished with terminal 

 and medial setae; gnathopods not eusirid, scarcely subchelate, both 

 articles 5 and 6 of both gnathopods elongate; [pereopods 3-5 not 

 described for lengths of articles]; pereopods 3-5 with a row of spines 

 on convex side oj dactyli, not present on pereopods 1-2 {combining 

 character and Djerboa). Species: 1, Kermadec Trench, hadal. 



Bovallia Pfeffer 



Bovallia Pfeffer, 1888.— Stebbing, 1906. 



Type-species: B. gigantea Pfeffer, 1888 (monotypy). See Chev- 

 reux, 1906b. 



Accessory flagellum absent; lower lip lacking inner lobes; inner 

 plate of maxilla 1 with numerous terminal setae and setae partially 

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

 strongly lobate, shorter than article 6; pereopods 3-5 Avith articles 

 4-6 each not longer than article 2; coxa 4 deeply excavate posteriorly, 

 upper lip rounded ventrally; telson cleft halfway; maxillipedal palp 

 article 4 shorter than article 3 (Dautzenbergia) . Species: 1, antarctic, 

 littoral. 



Cleonardo Stebbing 



Cleonardo Stebbing, 1888; 1906. 



Type-species: C. longipes Stebbing, 1888 (monotypy). 



Accessory flagellum articulate, short; lower lip with inner lobes; 

 inner plate of maxilla 1 with less than four terminal setae; gnathopods 

 not eusirid, scarcely subchelate, article 5 strongly lobate, shorter than 



