82 MAIAD.E. 



inner edge, converging at the points, somewhat flattened 

 above, and shghtly hollowed beneath. The external an- 

 tenna are remarkable in this, as in the other species of the 

 genus, for the dilated form of the external margin of the 

 second joint, which is also considerably longer than the 

 succeeding one ; the peduncle is nearly as long as the ros- 

 trum. The eyes are but little larger than the footstalk, and 

 capable of being retracted within the orbit, which is large 

 and open, arched above, and protected posteriorly by a 

 strong hastate process. There are no spines on any part 

 of the body or limbs ; but the carapace is covered with 

 low tubercles of various sizes. Of the external pedipalps 

 the second joint is quadrate, slightly produced at the an- 

 terior and inner angle ; the third joint of an irregular 

 form, and somewhat notched at the inner apex for the 

 articulation of the terminal portion. The abdomen of the 

 male is of a very peculiar form. The third joint is the 

 broadest, the fifth and sixth nearly equal, and the latter 

 excavated in its distal margin to receive the seventh joint, 

 which is transversely oval, or rather reniform, being broad- 

 ly emarginate at the terminal margin. The abdomen of 

 the female is broadly oval, and has a broad tuberculated 

 carina, Avhich is also the case with that of the male. 

 The body and limbs are partially covered with a villous 

 coat. 



The dimensions of a fine male are as follows : 



In. Lines. 

 Length of the carapace . . . .36 



Breadth of do. . . . .26 



licngth of the anterior legs . . .53 



" This species," says Dr. Leach, " is very common on 

 the coasts of Scotland and Kent. On the shores of Devon- 

 shire it is of rare occurrence,'' I have received it from 



