243 



has both its anterior angles produced into long sharp spines ; the flagellnm is 

 about three times the length of the body. 



Of the external maxillipeds the ischium has its inner edge finely, sharply, 

 and very regularly toothed throughout, and the meropodite has two large spines 

 on its inner edge. 



The thoracic legs are comparatively short and stout. The chelipeds when 

 fully extended only just exceed the fully extended body in length without the 

 rostrum in the male, and in the female only just equal the body without the 

 rostrum, and fi'om the ischium outwards they are hairy and granular; the 

 prismatic meropodite has the upper edge spiny throughout and the inner edge 

 spiny in its distal half, and ends above in two huge spines, the inner edge and 

 the granular outer edge ending iu smaller spines ; the carpus has spines in two 

 rows on its upper and outer surface and two or three obliquely placed spinules 

 on its inner surface ; the propodite in the upper and outer surface of its palmar 

 portion has three rows of spines ; the fingers are rather longer than the palm 

 and are closely and evenly toothed, the fixed finger having usually a large 

 spine near the middle of its outer edge and terminating in a pair of large spines, 

 between which the tip of the dactylopodite closes. 



Of the second, third, and fourth thoracic legs the upper (anterior) edge is 

 closely fringed with long hairs from the base of the ischium to the tip of the claw; 

 in all the merus and the carpus have the upper (anterior) edge strongly spined, 

 and the merus, propodite, and dactylus have the posterior edge serrate or spinulate. 



The largest male measures 54 millim. and the largest female 5G millim. from 

 the tip of the rostrum to the end of the telson. 



Colours in life : cephalothoracic region and appendages pink, abdominal 

 region white. 



The characters are quite constant throughout a large series of individuals of 

 both sexes. 



From the Andaman Sea, 173, 108, 130-248, 240, 250, 270, 238-290, 295- 

 360, 370-419, and 405 fathoms; and from the Arabian Sea, in the neighbour- 

 hood of the Laccadives and Maldives, 210 and 295-360 fathoms. 



There is a single large male in the collection in which the rostrum is less 

 than half the length of the carapace proper and the chelipeds are half as long 

 again as the fully extended body. 



^ , AT 6896-6900 /rp c ,, . . 9152 9932 15 19 514 548-549 



Regd. Nos. — - (-Lypes of the species) : -g-: -g- : j : y : -y- : — ^ — 



3190 t 8756-875 8 _ 1357-1361 _ 13S1 _ 2609-2611 _ 3758 

 9 - 9 * " 10 ' 10 * 10 " ~10' 



17. Munida vigiliarum, n. sp. 



Carapace a good deal longer than broad. Rostrum not half the length of 



