APSEUDES LATREILLII. 



ISOPODA. 



A/iBRliANlIA. 



153 



TANA IB Ji. 



APSEUDES LATREILLII. 



Specific character. Body smooth, destitute of hairs on the sides. Head 

 terminating in front in a deflexed point. Terminal segment of the tail not 

 more than half the length of the preceding portion of the pleon. First pair 

 of gnathopoda moderately large, the hand produced at its lower angle into a 

 strong linger, which is densely haii-y, but destitute of tubercles or spines, as 

 is also the true movable finger. 



Length one-fourth of an inch. 



Rhaa Latreillii (?) Milne Edwards, Ann. Sci. Nat. V. xiii. p. 28S, pi. 13a. 



The specimen from which the accompanying figure is 

 drawn bears so great a resemblance to Milne Edwards's 

 figure of Rhoea Latreillii that we have no doubt as to the 

 identity of the two animals. The deflexed rostrum, or 

 advanced point of the head, the comparatively large size 

 of the second pair of feet, the more slender hand with 

 the smooth fingers in the first pair of limbs, are all 

 characters observable in both. 



The small central point of the head, or rostrum, is 

 slightly down-curved. The orbital process is produced 

 to a pointed apex. The superior antennae have the pe- 

 duncle smooth, and the secondary appendage of the 

 flagellum scarcely half as long as the primary. The 

 inferior antenna reaches but little beyond the peduncle 



