o4 



K 



Scyramathia beauchanipi (Alcock and Anderson). 



Anamathia beauchampi, Alcock and Anderson, J. A. S. B., 1894, pt. 2, p. 185. 



Scyramathia beauchampi, Alcock, J. A, S. B. Vol. LXIV. pt. 2, 1895, p. 204, III. Zool. Investigator Cmst. 

 pi. XX. fig. 2, 2a. 



Body and legs downy, and with numerous large coarse curly clavate hairs, 

 which are very regularly arranged on the legs, where also they are coarsest and 

 closest. CarajDace sub-piriform, with the following armature : — 



On either hepatic region a great up-curved earlike spine (Avithout any 

 bullous base). On either branchial region, posteriorly, a strong up-turned spine ; 

 and anteriorly, near the middle line, a smaller coarse tooth. On the gastric 

 region four sharpish tubercles. On the narrow sunken cardiac region a coarse 

 sharp tooth. On the posterior border, in the middle line, a coarse granule. 



The rostrum consists of two more ( 9 ) or less ( c? ) divergent spines, the 

 length of which is about one-third that of the rest of the carapace. 



The eyes are small, and are almost devoid of pigment : they are to some 

 extent hidden beneath a pre-ocular tooth of moderate dimensions, and are 

 retractile against a larger laterally-compressed foliaceous post-ocular lobe. 



The antennae are completely exposed from the base of the second joint of 

 the peduncle. 



The chelipeds in the male are massive, and in length are more than 

 half again as long as the carapace and rostrum : all their joints, from 

 the ischium to the propodite, have one or more of their edges conspicuously and 

 sharply cristiform, this being specially well marked in the case of the long 

 trigonal arm, which has all its edges sharply phalanged, and in the case of the 

 equally long slightly inflated palm, which has razor-like edges. The fingers 

 which are not nearly half the length of the palm, are acute, and have their 

 cutting edges entire. 



The legs are slender, with cylindrical joints, the first are nearly or quite 

 equal in length to the chelipeds, the others decrease gradually in size. 



In an adult female, equal in size to the male above described, the chelipeds 

 are shorter than the 2nd pair of legs, and are similar in general proportions to 

 the other legs. 



Colours in Ufe : " Earth-colour with the chelipeds pink." 



Length of carapace (including rostrum) . , 

 Greatest breadth of carapace 

 Length of cheliped 

 Greatest breadth of palm 



From the Bay of Bengal, 193 and 210 fathoms. 



The ova are large (diam. 1 millim.) and rather few in number. 



