217 



The eyes are large — the major diameter one-fourth the length of the 

 carapace — and much compressed ; the corneal region is remarkably narrow and 

 the seta? that fringe its basal margin overlap the eye in front ; in addition to 

 these setas there are three half-rings of seta? on the eye-stalks. 



The basal joint of the antennal peduncle has its antero-internal angle pro- 

 duced into a great serrated hairy spine about half as long as the carapace, the 

 spines of the two sides converging in front of the eyes ; the antennal flagellum is 

 not much more than two-thirds the length of the body with the rostrum. 



The external maxillipeds are very hairy, and the merus has a strong spine 

 on the inner edge near the proximal end. 



The chelipeds (in the female) are one-half longer than the body with the 

 rostrum, are slender and cylindrical, and are remarkable for the great length of 

 the carpus, which is equal in length to the palm of the propodite or more than 

 two-thirds the length of the meropodite ; all the joints are sharply squamous, tin- 

 scales on the meropodite, and to a less extent on the carpus (except on the 

 under surface of these joints), forming spines ; the fingers are rather more than 

 two-thirds the length of the palm, the opposed edges are finely and closely 

 serrated, the fixed finger having also a second series of distant large teeth and 

 ending in a pair of claws between which the. tip of the dactylus closes. 



The second, third and fourth legs have the merus and carpus strongly 

 spinate along both edges, the propodite finely serrate on the posterior edge, and 

 the dactylus crenate on the front edge. 



In the male there are no appendages on the first abdominal somite. 

 In an egg-laden female the total length of the body is 35 millim., that of the 

 chelipeds being 53 millim. 



Andaman Sea, 112 fathoms: Arabian Sea, off the N. Maldive Atoll, 

 210 fathoms. 



165 /rr_ „e + 1,„ „„„„:_-v . 1363-1370 



Regd. Nos. — (Type of the species) 



10 



Munidopsis, Whiteaves, Faxon. 



Munidopsis, Whiteaves, Amer. Journ. Sci. (3) VII. 1874, p. 212: Faxon, Mem. JIus. Comp. Zool. XVIII. 1895, 

 p. 81. 



Galatlwdes, Orophorhynchus, Elasmonotus, A. Milne Edwards, Bull. Mns. Comp. Zool. VIII. 1880, pp. 53, 



58, 60. 



Anoplonotus, S. I. Smith, Proc. U. S. Nat. JIus. VI. 1883, p. 50. 



Munidopsis, Galatlwdes, Elasmonotus, Orophorhynchus, A. Jlilne Edwards and Bouvier, Ann. Sci. Nat., Zool. 

 (7) XVI. 1894, pp. 271, 276, 279, 283, and Mem. Mus. Comp. Zool., XIX. No. 2, 1897, pp. 63, 94, 98, 110. 



Galathopsis, Henderson, Ann. Mag. Nat. Hist. (5) XVI. 1885, p. 417. 



Munidopsis and Elasmonotus, Henderson, Challenger, Anomura, pp. 14S; 158. 



Bathyankyristes, Alcock and Anderson, Journ. As. Soc. Bengal, Vol. LXIII. pt. 2, 1S94, p. 173 (subgenus). 



The integument is very strongly calcified. 



