68 



AMPH1PODA. 



NATATORJJ. 



GAMMARHX&. 



STEGOCEPHA LIDES. 



DANAIA DTJBIA. 



Specific Character. Coxse of the second pair of gnathopoda, and of the 

 first pair of pereiopoda, serrated upon the inferior margin. Second pair of 

 gnathopoda having the propodos broadest at the palm, which, is convex and 

 ciliated. 



Length, ^5 of an inch. 



Montagua dubius, SPENCE BATE, Eeport Brit. Assoc. 1855, p. 57. 



Danaia dubia, SPENCE BATE, Ann. Nat. Hist. 1857, xix. 137. Cat. 



Amph. Brit. Mus. p. 59, plate x. fig. 1. WHITE, Pop. 



Hist. Brit. Crust, p. 167. 



IN general aspect this animal resembles a species 

 of the preceding genus. The head is furnished with a 

 straight rostrum, and the anterior lateral margin is pro- 

 duced anteriorly to a point in a straight line, further in 

 advance than the rostrum. The body of the animal is 

 smooth ; but the eighth, ninth, and tenth segments in- 

 dicate a slight projection posteriorly on the dorsal sur- 

 face. The eyes are probably like those in Montagua ; 

 but they have not hitherto been satisfactorily examined. 



