214 G. 0. SARS, 



The last i)air of uropoda (fig. 11) considerably project beyond the others, 

 and have the basal part armed at the end below with 4 strong jnxtaposed 

 spines. The inner ramus is very small and scale-like, carrying a single small 

 spine at the tip and another still smaller on the inner edge. The outer ramus 

 is well developed and nearly 3 times as long as the basal part. It is com- 

 paratively narrow, slightly tapering distally, and is provided at the tip with 

 a very small terminal joint. The ramus is round about edged with long cili- 

 ated setse, and besides exhibits a few fascicles of short s])iues, 2 of which 

 issue from the tip, on either side of the terminal joint. 



The telson (fig. 12) is not very large, and scarcely extends beyond the 

 basal part of the last pair of uropoda. It is divided by a deep cleft into two 

 halves, each slightly narrowed distally and carrying at the somewhat ob- 

 liquely truncated tip 2 small spines and a few fine hairs. 



The adult male (fig. 13), as usual, grows to a somewhat larger size than 

 the female, the largest specimens measuring about 16 mm. in length. 



In its general form the body does not difier much from that in the 

 female, being only a little more slender and compressed, and having the 

 coxal plates comparatively smaller. 



The antennas ap])ear somewhat less [unequal, the inferior ones being 

 comparatively more fully developed than in the female and also more densely 

 setiferous. The accessory appendage of the superior ones (see fig. 14) is a 

 little more elongated than in the female, though exhibiting the same number 

 of articulations. 



The gnathopoda (figs. 16 and 17) are much stronger than in the female 

 and, as in the latter, rather unequal in size, the posterior ones (fig. 17) 

 being considerably more powerful than the anterior. In both pairs the pro- 

 podos exhibits a similar oval quadrangular form to that in the female, but is 

 much larger, especially that of the posterior pair. The palm is nearly 

 straight and somewhat oblique, being defined below by an obtuse angle 

 carrying 2 strong spines, between which the dactylus impinges, when closed; 

 besides the palm has on the outer side, about in the middle, a strong spine, 

 not occurring in the female. 



The pereiopoda (see fig. 1 3) appear somewhat more slender than in the 

 female, and the basal joint of the 3 posterior pairs is also comparatively 

 narrower. 



The last pair of uropoda (fig. 18) are a little more elongated than in 

 the female, nearly equalling in length the urosome, but otherwise are of a 

 much similar structure. 



Colour. — In none of the specimens examined any colouring marks 

 could be detected, the whole body exhibiting a uniform whitish hue. 



*U3,-3IaT. CTji. 214. og 



