MARESTE GAMMARIDEAN AMPHIPODA 223 



article 6; pereopods 3-5 with articles 4-6 each much longer than 

 article 2; body dorsally smooth (Rhachotropis) . Species: 7, N. Hemi- 

 sphere largely, bathyal-abyssal, pelagic or ?demersal. 



Cleonardopsis K. H. Barnard 



Cleonardopsis K. H. Barnard, 1916. 

 Amathillopleustes Pirlot, 1934. 



Type-species: C. carinata K. H. Barnard, 1916 (monotypy). 



Accessory flagellum articulate ^nd long; lower lip with broad 

 semifused inner lobes; maxilla 1 with four or fewer terminal setae; 

 gnathopods not eusirid, subchelate, article 5 lobate, as long as article 

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

 body carinate (Pseudomoera) . Possibly belongs in the Pleustidae 

 because of the lower lip. Species: 1, probably cosmopolitan, 

 bathypelagic. 



Dautzenbergia Chevreux 



Dautzenbergia Chevreux, 1900. 



Type-species: Amphithopsis grandimana Chevreux, 1887 

 (monotypy). 



Accessory flagellum absent; lower lip lacking inner lobes; inner 

 plate of maxilla 1 with four or fewer terminal setae; gnathopods 

 not eusirid, subchelate, article 5 of gnathopod 2 with slender pos- 

 terior lobe, article 6 in male very large, about 5 times as long as 

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

 2; coxa 4- scarcely excavate posteriorly, upper lip slightly incised, telson 

 cleft one fifth, maxillipedal palp article 4. longer than article 3 (Bovallia). 

 Species: 3, subarctic, N. Atlantic to ?Indian Ocean, bathyal to abyssal. 



Djerboa Chevreux 



D jerboa Chevreux, 1906b. 



Type-species: D. furcipes Chevreux, 1906b (monotypy). 



Accessory flagellum articulate, long; lower lip lacking inner lobes; 

 inner plate of maxilla 1 densely lined with setae on medial edge; 

 gnathopods not eusirid, subchelate, article 5 not lobate, on gnathopod 

 2 especiaUy, both articles 5 and 6 greatly elongated and sublinear; 

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

 pereopods 1-5 with accessory spine on convex side of dactyli {combining 

 character and Bathyschraderia) . Species: 1, antarctic, littoral. 



Eurytnera Pfeifer 



Eurymera Pfeffer, 1888.— Stebbing, 1906. 



Type-species: E. monticulosa Pfeffer, 1888 (monotypy). See 

 Chevreux, 1906b. 



