106 



U.S. NATIONAL MUSEUM BULLETIN 258 



Figure 12. — Lignophliantis pyrifera, new genus, new species, ?sex, 1.4 mm., station 41: 

 a, dorsal view of urosome; b, lateral view of pleon; c, gnathopod 1; d,e, pereopods 2, 5; 

 f,g,h, pleopods 1, 2, 3. 



Eusiridae 



Accedomoera J. L. Barnard 



Accedomoera J. L. Barnard, 1964c, p. 59. 



This genus, erected for the type Pontogeneia tricuspidata Gurjanova 

 (1938) with P. mokyevskii Gurjanova (1952) and P. ushuiae Schellen- 

 berg (1931), differs from Pontogeneia Boeck by the articulated, 

 uniarticulate accessory flagellum. The genus forms a bridge to 

 Eusiroides Stebbing from which it differs by the shorter accessory 

 flagellum, the less strongly expanded sixth gnathopodal articles 

 bearing distinct palms, and the very poorly developed, if not absent, 

 inner lobes of the lower lip. 



Accedomoera vagor, new species 



Figures 13-14 



Diagnosis. — Body lacking dorsal processes; rostrum of moderate 

 size, reaching about 40% along article 1 of antenna 1 but scarcely 

 projecting in front of lateral cephalic lobes, slender, straight, tapering 

 subacutely; lateral cephalic lobe quadrate, defined below by deep 

 notch; eyes large, subreniform, black in alcohol; peduncle of antenna 



