24 



The ambulatory legs are large stout and compressed, those of the first three 

 pairs being a little longer than the chelipeds. In these three pairs the meropodif.e 

 is lamellar, its greatest breadth being considerably more than a third its length ; the 

 carpus has its outer surface traversed longitudinally by three beaded carinas, 

 the middle one of which ends in a spine ; and the propodite is lamellar with the 

 outer (anterior) edge subcarinate and the upper surface traversed longitudinally 

 by two or three raised lines of fine beading. 



The second abdominal tergum in both sexes is raised into a stout carina, the 

 height of which is more than a third the transverse diameter of the tergum : 

 this carina is three lobed, the lobes being separated only by fissures. In the 

 female, as in the male, the 3rd-5th terga are fused, although the lines of fusion 

 are quite distinct in the former sex. 



Colours in life salmon pink. 



Off Ceylon, 142-400 fms., and 180-217 fras. 



In the form of the legs, in the ornamentation of the chelipeds, and in the 

 shape of the carapace, this species bears a strong resemblance to Flatymera. 

 Even in the articulation of the flagellura with the merus of the external maxil- 

 lipeds the appearances are somewhat those of Flatymera. 



On the other hand the form of the endostomial channels, and of the pro- 

 cesses of the first maxillipeds which close those channels ventrally, as well as 

 the practical symmetry of the chelipeds, are all as in Mursia. 



But a comparison of this species with specimens of Mursia armata and 

 Flatymera gaud.ichaudii leads to the behef that all three are congeneric. 



The dimensions of an adult male are as follows : — 

 breadth of carapace 67 millim., excluding the lateral epibranchial spines ; length 

 of carapace 47 millim., length of first pair of ambulatory legs about 90 millim. 



Mursia as per a, n. sp. 



Illustrations of the Zoology of the Investigator, Crustacea, pi. xl. fig. 2. {in preparation.) 



Most nearly allied to Mursia curtispina, Miers and to Mursia hawaiiensis 

 Rath bun. 



Carapace strongly convex in both directions, its length four-fifths of the 

 breadth in front of the lateral epibranchial spine, its surface closely covered 

 dorsally with sharp pustulous granules and tubercles, seven longitudinal series 

 of which are slightly enlarged and have a granular base. The lateral epibranchial 

 Spine is extremely short, its length in the unique (adult male) specimen being only 

 one-twentieth the greatest breadth of the carapace. 



Rostrum trilobulate : antero-lateral borders finely-festooned, crenulate : 

 postero-lateral borders beaded, angularly bent inwards about the middle as in 



