1855.] . 393 



gulae, large superior cirri, and very stout inferior seta?. Posteriorly the cirri are 

 reduced, the superior lingula compressed and slightly expanded, bearing the cir- 

 rus upon its upper edge. Maxilla* broad, little curved, and nearly smooth on their 

 inner edges. Length, 4 inches ; breadth, 0.35 inch. Found among rocks at 

 low-water mark. 

 Hab. Cape of Good Hope, at Simon's Bay. 



41. Lepidonote semitecta. Scales about twelve in number on each side, so 

 small as to reach each other without overlapping and to leave the middle of the 

 back bare. Head quadrangular with four minute eyes ; and five tentacles, the 

 median largest, the exterior ones longer than the intermediates, but like those 

 annulated with black. Lateral cirri short, each with a black ring near its lip. 

 Color greyish-crimson, with black dots along the middle of the back. Scales 

 bright crimson, except at their attachments where they are white. Length 1 

 inch ; breadih, 0.3 inch. Found at low-water mark, in the circumlittoral 

 zone. 



Hab. Cape of Good Hope, at Simon's Bay. 



CHORISTOPODA. 



42. Anthura polita. Cylindrical, smooth and shining; the seventh segment 

 nearly as large as the sixth. Head small, inferior antennae as long as the head, 

 somewhat larger than the superior ones and placed before them ; eyes very mi- 

 nute, black, placed rather on the sides of the head at the anterior corners. Legs 

 of the first pair very thick, the rest slender. Abdomen short and broad. Color 

 pale greyish, mottled. Length, 0.9 inch; breadth, 13 inch. Found at 

 the depth of two inches in sand, above half-tide. 



Hab. Coast of the United States, at Norfolk. 



43. Anthura punctata. Anterior segments elongated and slender, the sixth 

 broadest, the seventh very short, and bearing a much smaller pair of legs than 

 the others. Head scarcely narrower than the first thoracic segment, with a 

 slight rosirum, and large black eyes at the anterior corners ; the inferior an- 

 tennae largest. The first three pairs of legs have much larger hands than the 

 posterior ones ; those of the first pair being somewhat shorter and thicker than 

 the others. Color greyish above, from the numerous minute, black punctations ; 

 pale yellowish or whitish below. Length, 0.8 inch ; breadth, 0.8 inch. 

 Found among Gorgonias in the coralline zone. 



Hab. Cape of Good Hope, at Simon's Bay. 



44. Anthura catenula. Very slender, whitish, with a hollow square of 

 black on each segment above, giving a chain-like appearance to the back ; head 

 smaller than the first thoracic segment; antenna? rather long; eyes black, at 

 the anterior corners of the first square of color; anterior pair of legs short, 

 thick, and with strong, sub-cheliform hands; remaining legs slender. Abdo- 

 men slightly depressed, wi*h a black transverse bar, and a few symmetrically ar- 

 ranged black spots posteriorly. Length, 0.7 inch ; breath, 0.06 inch. Found 

 under stones at low-water mark. 



Hab. Cape of Good Hope, at Simon's Bay. 



45. Anthura laevigata. Body smooth and shining, transparent white, ex- 

 cept a few crimson spots at the extremities. Head narrow ; antennae small, flat- 

 tened; eyes minute, red. First three pairs of legs stout, with equal, sub-cheli- 

 form hands; posterior leg3 slender. Abdomen with its posterior funnel-shaped 

 cavity large, and with its anterior segments well-marked. Length, 1 inch ; 

 breadth, 0.2 inch. On sandy bottoms in the circumlittoral zone. 



Hab. Cape of Good Hope, at Simon's Bay. 



46. Caprella solitaria. Smooth, slender, bright crimson ; superior an- 

 tennae with large peduncles, inferior ones slender, sub-pediform. Head with a 

 strong spine, pointed forward, between the minute eyes. Hands large, with two 



