240 Carcinological Fauna of India. 



male are about one-sixth, in the female abont one-eighth, the rest of 

 the carapace in length. The eyes and orbits are just as in M. squinado 

 (with specimens of which this species has been compared), only the 

 cornea is relatively very much larger, and almost entirely ventral, in 

 the present species, and the spine between the spine of the pre-orbital- 

 hood and the post-orbital spine is nearly as large as either of these. 



The antennae are in all respects as in M. squinado, except that 

 the basal joint is slightly narrower. 



The appendages are just as in M, squinado — the legs being short 

 and hairy and the chelipeds smooth and polished — with the single 

 difference that the chelipeds are only as long as, and are much slender- 

 er than the fifth pair of legs, and are therefore very much shorter than 

 the second pair, which hardly exceed the carapace and rostrum in 

 length. 



Male. Female. 



Length of carapace ... ... 32 millim. 41 millim. 



Greatest breadth of carapace 

 Length of chelipeds 



„ „ 2nd pair of trunk-limbs ... 



Loc. Andaman Sea, 250 fms. 



Paramithrax, Edw. 



Paramithrax, Milne-Edwards, Hist. Nat. Crust. I. 323. 



Paramithrax (Paramithrax et Leptomithrax) , Miers, Journ. Linn. Soc. Zool., 

 Vol. XIV. 1879, pp. 655 and 656. 



Acanthophrys (partim), A. Milne-Edwards, Ann. Soc. Ent. Fr. (4) V. 1865. 



p. 140. 



Chlorinoides, Haswell infra; and Miers infra. 



25 „ 



35 



24 „ 



31 



335 „ 



46 



Sub-genus Chlorinoides, Haswell. 



Chlorinoides, Haswell, P. L. S., N. S. Wales, Vol. IV. 1879, p. 442 ; and Ann. 

 Mag. Nat. Hist., Vol V. 1880, p. 146 ; and Cat. Austral. Crust., p. 17. 

 Chlorinoides, Miers, 'Challenger' Brachyura, p. 51. 





Carapace pyriform, convex, with the regions indistinct; armed 

 with some very large acute spines. The rostrum consists of two long 

 slender divergent horns. The basal antennal joint is just as in Maia, 

 but the mobile portion of the antenna has no connexion with the orbit. 

 The eyes and orbits are as in Maia, but the supra-ocular hood has its 

 anterior angle as well as its posterior angle produced into a spine. 

 The external maxillipeds are as in Maia, as are also the ambulatory 



86 



