267 



. 



Bay of Bengal 1520 fathoms. 

 Regd. No. y (Type of the species). 



37. Munidopsis (Orophorhynchus) ciliata, Wood-Mason. 



Munidopsis ciliata, Wood-Mason, Ann. Mag. Nat. Hist., Feb. 1891, p. 200: Faxon, Mem. Mug. Comp. Zoel. 

 XVIII. 1895, p. 84. 



Munidopsis brevimana, Henderson, Ann. Mag. Nat. Hist. (S) XVI. 1885, p. 414, and Challenger Anomura, 

 p. 164, pi. xvii. figs. 1, 2. 



ILLUSTRATIONS OF THB ZOOLOGY OF THE INVESTIGATOR, CRUSTACEA, PLATE XI. FIG. 3. 



The specimen in the Indian Museum, which was dredged in the Bay of 

 Bengal, in 1310 fathoms, agrees in every particular with Henderson's descrip- 

 tion. Faxon has explained the necessity for adopting "Wood-Mason's name, and 

 has pointed out the close relation of this species to M. nitida A. M. Edw. from 

 the West Indies. 



To Henderson's description, which is quoted below, I may add that an 

 epipodite is present on the chelipeds. 



In our specimen, which is a male, the length of the fully extended body is 

 35 millim., and that of the chelipeds 19 millim. 



The colour in the fresh state was milk white. 



" The carapace is glabrous and covered with short transverse ridge-like 

 elevations, which exist in greatest number on the posterior half ; in some speci- 

 mens also short hairs are sparingly met with. The gastric area is swollen, and 

 armed in front with two prominent spines placed behind the base of the rostrum, 

 while the short transverse ridges are comparatively few in number ; the cardiac 

 area is circumscribed, and a deep furrow crosses it transversely near the middle ; 

 the ridges are strongly marked, and lengthen out somewhat on the branchial 

 regions. The rostrum is narrow and acute, slightly elevated towards the apex, 

 and carinated superiorly, its length being less than half that of the carapace. 

 The lateral margin of the carapace is armed with five spines, three of which are 

 situated between the two divisions of the cervical groove, and the first of this 

 trio reaches the greatest size ; a single spine is placed on the antero-lateral 

 margin behind the antennal peduncle ; the posterior margin is prominent, but 

 unarmed. 



" The chelipedes are stout and remarkably short, with the joints pubescent, 

 and the merus and carpus somewhat spiny above. The lower surface of the 

 ischium is produced anteriorly, and a spinule is present near the apex of this 

 process ; the propodus is almost smooth, and dilated both from side to side and 

 from above downwards ; the fingers are short and stout, with their opposed 

 surfaces deeply excavated, and the apical margins finely toothed ; numerous 

 shorV tufted hairs are present towards the apices, and the outer surface of the 



