PAGURISTES FECUNDUS. 67 



the rostrum and the lateral processes the anterior border is concave and 

 thickened so as to form a rim. The anterior gastric lobes are clearly 

 defined anteriorly. 



The ocular j^eduncles are long and cylindrical, reaching considerably 

 beyond the antennal peduncle, but not quite so far as the antennular 

 peduncle. Tlie ophthalmic scales are of moderate size and bidentate at the 

 tip, the external tooth very minute. The antennal acicle reaches almost to 

 the end of the peduncle ; it is setose, and armed with six spines, two of which 

 form a terminal fork, the others being marginal. The external prolongation 

 of the second antennal segment is narrow, setose, and muiutely sjjinulose ; 

 there is, moreover, a spinule on the upper face of this segment behind the 

 base of the acicle ; the antennal flagellum is very short (about equal in 

 length to the anterior section of the carapace). The third pair of maxilli- 

 peds are closely approximated at their bases ; their merus joints are armed 

 with three or four denticles on the lower margin and one at the distal end 

 of the upper margin. 



The chelipeds are short and of like size and shape ; the merus is smooth 

 within, rugose without ; the two inferior margins armed with minute black- 

 tipped spinules. The carpus is tomentose and sjoinulose, the largest sjoines 

 occurring along the superior border ; the hand is both spinulose and pubes- 

 cent, but the hair is less dense upon the fingers than upon the basal portion 

 of the hand, which is short and swollen below. The fingers are short, exca- 

 vated within, and terminate bluntly in dark, corneous nails. The ambula- 

 tory limbs are pubescent, particularly on the upper and lower margins; 

 the distal end of the merus, and also the carpus, propodite, and dactylus 

 are armed with numerous spines, the most prominent of which are 

 arranged in a row along the upper border of the carpus and propodite; 

 the dactylus is about equal in length to the propodite and carpus together. 

 The legs of the fourth pair are furnished with long hairs on their upper mar- 

 gin, and there are a few spines on the upper margin of the carpus ; the pro- 

 podite is rather longer than the dactjdus, and the rasping surface on its lower 

 margin occupies two thirds of its length. The last pair of legs are much less 

 hairy than the preceding pair ; the rasping surface, which is truncate pos- 

 teriorly, falls a little short of reaching the middle of the hand. The telson 

 is divided by a jjair of lateral incisions and a median one into four lobes, 

 those on the left side the larger ; the pair of terminal lobes are obscurely 

 toothed on their margins. 



