26 G- O. Sars. 



hand. It is suddenly bent inwards, with the outer part 

 somewhat tumefied and armed, at the place where it comes 

 in contact with the thumb, with a number of small tubercles 

 (see fig. 7). From its tip issues a small, stalked sucking- 

 disc, as in Paralimnadia Stanley ana. The thumb is armed 

 on the obtusely rounded tip with a dense crowd of incurved 

 denticles, extending for some distance on its posterior face; 

 and between them issue a number of stiff bristles curved 

 inwards. The lamella appended to the thumb is likewise edged 

 with bristles, which, however, are rather small and less densely 

 crowded together. The sub-apical appendage issuing at 

 the base of the claw, is generally extended in the axis of 

 the leg, and consists of 2 joints the 1st of which carries 

 at the end inside, a few small spines. The distal joint is 

 of a very delicate structure, and somewhat claviform (see 

 fig. 3), terminating in 2 unequal lobular expansions densely 

 clothed with delicate papillæ of a similar kind to those 

 found on the antennulæ. This appendage, which is undoubt- 

 edly of sensory significance, is, on the 1st pair of legs (figs. 

 1, 2, 4), about as long as the hand, whereas on the 2nd 

 pair (figs. 5, 6) it is much more fully developed, being 

 almost twice as long. 



The 3rd pair of legs (fig. 8) only differ from those in 

 the female in the fact of the 4th endite carrying on the 

 tip a slender, cylindric appendage of a similar structure to 

 that of the sub-apical appendage on the 2 anterior pairs, 

 though here only composed of a single joint. Also on the 

 4th pair there is a slight rudiment of such an appendage 

 (see fig. 9). 



The succeeding pairs are of exactly the same appearance 

 as in the female, except that the dorsal lappet of the 

 exopodite in the 9th and 10th pairs is not prolonged in a 



