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groove, is quite soft and membranous. The hepatic region is marked off 

 from the branchial region by a transverse furrow. 



The front, which is carinated dorsally and deflexed at tip, projects well 

 between the eyestalks. 



The eyes are large and reniform and are borne on stout stalks, which 

 are about half the length of the anterior border of the carapace. 



The first two joints of the antennulary peduncle are together about the 

 same length as the eyestalk, the first joint being flattened and somewhat 

 dilated dorsally ; the third joint, which is the longest, is not two-thirds the 

 length of the upper fiagellum. 



rhe antennal peduncle is about the same length as that of the anten- 

 nules : the acicle is about as long as the eyestalk : the tiagellum is about twice 

 the length of the carapace. 



'1 he chelipeds are massive, quite equal, and about as long as the entire 

 body with the abdomen flexed in the natural position : not much more than 

 a third of their length is formed by the merus, which is slightly shorter than 

 the hand. They are m.ore or less covered with long, stiff", golden-yellow 

 bristles, which are specially thick-set on the under surface of the merus and 

 the outer surface of the wrist and hand : these bristles do not hide the rather 

 coarse squamiform tubercles from which they spring. There are some 

 coarsish spines along the inner border of the ischium, both the lower borders 

 of the merus, and on a good part of the outer surface of the wrist and hand. 

 The fingers are spooned and have minutely corneous tips. 



The legs are stout and compressed, and their borders — and in the case 

 of the last three joints of the first two pairs, a considerable part of the surface 

 also — are more or less covered with stiff yellow bristles like those that grow 

 on the chelipeds. The first pair of legs are of equal length with the cheli- 

 peds. The second pair are a little longer, and a third of their length is 

 formed by the long sabre-shaped dactylus. The third pair do not reach to 

 the far end of the carpus of the second pair : they terminate in a very 

 perfect chela of comparatively large size, with the dactylus anterior (or 

 dorsal) and the fixed linger strongly and sharply toothed. 1 he fourth pair 

 reach just beyond the far end of the merus of the third pair : they end in 

 a very much smaller and less perfect chela, with the dactylus posterior (or 

 ventral). 



The abdomen is a perfectly soft membranous bag, of which the segmen- 

 tation is quite recognizably, but far from conspicuously, defined. In the 

 male it is symmetrical, though the minute or rudimentary appendages, that 

 are present on one side (right or left) of the 3rd, 4th and 5th segments, are 

 represented on the other side only by small tufts of small bristles. In the 



