MARINE GAMMARIDEAN AMPHIPODA 431 



Neoxenodice Schellenberg 



Neoxenodice Schellenberg, 1926c. 



Type-species: A^. caprellinoides Schellenberg, 1926c (monotypy). 



Accessory flagelliim present: antennae equal in length; pleon with 

 six segments and three pairs of uropods; uropod 2 with two rami, 

 uropod 3 lacking rami; coxae tiny, separated by a distance more than 

 their width, pereopods 1-2 shorter than the gnathopods (Xenodice). 

 Species: 1, an.tiboreal, abyssal. 



Paradulichia Boeck 



Paradulichia Boeck, 1871. — Stebbing, 1906. 



Type-species: P. typica Boeck, 1871 (monotypy). See Sars, 1895. 



Accessory flagellum present; antenna 1 longer than 2; pleon with 

 only five segments and two pairs of uropods; uropod 2 uniramous, 

 very small, uropod 3 absent; pereonites 6-7 coalesced. Species: 3, 

 arctic-boreal, N. Atlantic, littoral to bathyal. 



Podocerus Leach 



Podocerus Leach, 1814b. — Stebbing, 1906. 

 Platophium Dana, 1852b. 

 Dexiocerella Haswell, 1885. 



Type-species: P. variegatus Leach, 1814b (monotypy). See Chev- 

 reux and Fage, 1925. 



Accessory flagellum present; antenna 1 shorter than 2; pleon with 

 six segments and three pairs of uropods; uropod 2 with two rami; 

 uropod 3 lacking rami. Species: 21, cosmopolitan, littoral (rarely 

 bathyal, 569 m in antarctic). 



Xenodice Boeck 



Xenodice Boeck, 1871.— Stebbing, 1906. 



Type-species: X. frauenfeldti Boeck, 1871 (monotypy). See Sars, 

 1895. 



Accessory flagellum present; antenna 1 slightly longer than 2; 

 pleon with six segments and three pairs of uropods; uropod 2 with 

 two rami; uropod 3 lacking rami; coxae small, separated by a distance 

 half their width, pereopods 1-2 longer than the gnathopods {Neoxenodice) . 

 Species: 1, subarctic, N. Atlantic, littoral to bathyal. 



