52 



Wliatever may be the value of these differences, our species are all, I think, 

 congeneric with the Amathia carpenteri of Norman and with the Anamathia 

 pnlchra of Miers. 



I am inclined to think that the Pugettia velutina described and figured by 

 Miers in the Challenger Report, also belongs to this genus. 



Scyraniathia inilchra, Miers. 



Annmathia ptilchra, Miers, 'Challenger' Brachynra, p. 26, pi. iv. fig. 1 (adnlt male). 



Anamathia livermorii, Wood-Mason, Ann. Mag. Nat. Hist. March 1891, p. 260 f young male and adult female). 

 Scyraniathia pulchra, Alcook, J. A. S. B., Vol. LXIV. pt. 2, 1895, p. 202: 111. Zool. Investigator, Cruat. pi. xiv. 

 fig. 3 (female). 



Body and limbs everywhere closely covered wdth short hairs, which on the 

 carapace are peg-shaped ; and with numerous long scattered setae. The carapace, 

 which is subpiriform, is armed with twenty long sharp spines disposed in five 

 longitudinal series. Of these spines six are on the gastric region, one is on the 

 cardiac, and one on the intestinal region, one stands above either eye, one on 

 each hepatic, and four on each branchial region : in addition there is a distinctly 

 cupped post-ocular lobe. 



The rostrum consists of two slender divergent spines, the length of which 

 is more than half that of the carapace proper. 



The eyes are small, and the cornea, though retractile against the post-ocular 

 lobe, can never be concealed. 



The basal antenna! joint is broad, and has its antero-external angle some- 

 what produced : the mobile portion of the antenna is completely exposed to 

 dorsal view. 



The external maxillipeds have the ischium and merus somewhat concave. 



The chelipeds vary according to sex. In the adult male they are longer 

 than the carapace and rostrum, and are far stouter than any of the legs : the 

 wrist is enlarged and sculptured with carinse, the palm is broadened, as well as 

 somewhat carinate along both edges and strongly produced at the postero-inferior 

 angle, and the fingers are apposable in their distal half only. In the female and 

 young male they are shorter than the carapace with the rostrum, and are hardly 

 stouter than the other legs ; all the joints are subcylindrical, and the fingers are 

 apposable in the greater part of their extent. 



In both sexes, the merus of all the legs, including the chelipeds, has a spine 

 or tooth at the far end of its upper margin. The first pair of true legs, which 

 are the longest, are, in the male, nearly twice the length of the carapace and 

 rostrum, but in the female are considerably shorter. 



From the Andaman Sea, 130 to 561 fathoms. 



Numerous specimens of both sexes are in the Indian Museum. 



The eggs are very large. 



