206 Rev. T. R. R. Stebbing's Revision of Amphipoda. 



joint in the palp of the raaxillipeds rudimentary, and the 

 third uropods ending in a tubercular ramus. 



The type species is Acontiostoma Pepinii, Stebbing, of 

 which A. kergueleni is a synonym. 



Paropisa, gen. nov. 



Distinguished from Opisa, Boeck, by having the first side- 

 plates broader and deeper than the second and tliird, (he 

 second joint of the fifth peraeopods produced strongly down- 

 Avard, the rami of the tliird uropods not much longer than 

 tiie peduncle; the telson as broad as long, cleft only to the 

 centre. 



The type species is Opisa hispana, Chevreux, of which 

 the mouth-organs have not yet been described. 



Paratryphosites, gen. nov. 



Near to Tri/pJiosites, Sars, and Hippomedon, Boeck, but 

 distinguished by the small first joint of the flagellum of the 

 first antenna?, the more numerous setas (five) on the inner 

 plate of the first maxillaj, the stouter peraiopods, and the 

 telson less deeply divided, with several spinules on the trun- 

 cate apices. From Hippomedon it is further distinguished by 

 the distinctly subchelate tirst gnathopods. 



The type species is L?/sianaisa abi/ssi, Goes. 



Fam. StegocephalidaD. 

 Parandania, gen. nov. 



Pleon rather large. Second antennae with flagellum longer 

 than the peduncle. Lower lip with the lobes very broad, 

 distally truncate, and having a denticle at the outer corner. 

 Mandibles with the cutting-edge very broad, straight, and 

 smooth. The palp of the first maxillaj one-jointed. The 

 telson entire. 



The type species is Andania Boecki, Stebbing. 



EUANDANIA, gen. nov. 



In general agreement with Parandania^ but distinguished 

 by having a far smaller pleon, the flagellum of the second 

 antennae shorter than the peduncle, the lower lip with the 

 lobes broadly rounded, the telson partly cleft. 



The type species is And-ania gigantea^ Stebbing. 



