( 35 ) 



3- Paguristes calvus, n. sp. Plate I., fig. 4. 



This species is even less setose than P. balanophilus, for except on the 

 anterior border of the dactyli of the 2nd and 3rd legs, there are no setae suffi- 

 ciently long or numerous to be seen with the naked eye. 



Rostrum long and slender, as in P. balanophilus, and reaching well 

 beyond the middle of the ophthalmic scales. 



Eyestalks just shorter than the front border of the carapace, decidedly 

 shorter than the antennular peduncle, stoutish, eyes largish. Ophthalmic 

 scales large, acute. 



Antennal acicle stout, spinose, reaching about half-way along the termi- 

 nal joint of the peduncle. Antennal flagellum peculiarly stout and stiff, 

 about 1% times as long as the carapace. 



The left cheliped is slightly the larger, its length being about half again 

 that of the carapace measured in the middle line ; but both chelipeds are 

 similar in general form and sculpture : the upper border of the merus is 

 spinose distally ; the exposed surfaces of the carpus, hand, and fingers are 

 closely and crisply granular or spinulose, the inner border of all three joints 

 (in one or both chelipeds) being sharply serrated. The cutting edges of the 

 fingers are straight and entire, and meet closely throughout their length. 



The 2nd and 3rd pairs of legs are long, and on both sides reach beyond 

 the chelipeds : in the 2nd pair the anterior border of the carpus and propo- 

 dite is strongly spinose, and that of the dactylus spinulose : in both pairs 

 long, fine, stiff setae fringe the anterior border of the dactylus. 



Length of carapace 18 millim. Colours in spirit: uniform yellowish: a 

 network of faint red lines on the inner surface of the merus of the chelipeds. 

 Inhabiting clean and incrusted shells of Murex and Pleurotoma. 



4701 5 



— Tq — • Northern part of B. of Bengal, 65 fath, " Investigator." 



This species is closely related to P. balanophilus, from which it chiefly 

 differs in the shorter and stouter eyestalks, the longer and stouter antennal 

 flagellum, and the absence of conspicuous setae everywhere, except on the 

 dactyli of the 2nd and 3rd legs. 



4. Paguristes mundus, n. sp. Plate III., fig. 5. 



In this species also conspicuous sets are present only on the dactyli 

 of the 2nd and 3rd legs. 



Carapace elongate, its breadth across the branchial regions considerably 

 less than two-thirds its length in the middle line, Rostrum broadly triangular. 



