UROTHOE MARTNUS. 



195 



A MP HI POD A. 



NATAT0B1A. 



P1I0XIDES. 



UROTHOE MARINTJS. 



Specific character. Superior antenna? longer than the inferior. Inferior 

 antenna? having the flagelluni uniarticulate. Second pair of gnathopoda 

 with the palm slightly oblique. Both branches of the terminal caudal ap- 

 pendages plumose. 



Length i inch. 



Urothoe marinus. Spence Bate, Cat. Amph. Brit. Mus. p. 145, pi. xix. 



fig. 2. 

 Sutcator marinus. Spence Bate, Synop. Brit. Amph. Ann. Nat. Hist. ser. 



2, xix. p. 140, Feb. 1857. White, Hist. Brit. Crust. 



p. 175. 



This species bears a close resemblance to the preceding 

 in its general aspect, but may readily be detected from it 

 by the shortness of the inferior antennae. The superior 

 antennae are about one-fourth of the length of the 

 animal, and have a flagellum scarcely longer than the 

 last joint of the peduncle. The inferior antennae 

 scarcely reach beyond the extremity of the peduncle 

 of the superior. The first joint of the peduncle is 

 surmounted by three longitudinal rows of spines, each 



o 9 



