1899.] A. Alcock — Carcinological Fauna of India. 91 



Orbits without any particular dorsal incliuation : their major dia- 

 meter nearly a third the width of the inter-orbital space : the inner 

 angle of the lower border not dentiform. 



Basal antenna-joint about equal to tlie major diameter of the orbit 

 in extreme extent, traversed by a low microscopically-granular crest. 



Chelipeds rather pilose : the arm has 3 spines on the anterior 

 border, none on the posterior border, the exposed part of its upper sur- 

 face has some squamiform granules : wrist costate and granular, its inner 

 angle spiniforra, 3 sharp spinules on its outer angle : hand with numer- 

 ous granular costee, and with 5 sharp and very distinct spines in the 

 usual position : fingers about as long as the hand in the smaller cheli- 

 ped, shorter than the hand in the larger cheliped. 



Merus of last pair of legs slender, more than twice as long as broad, 

 with the usual spine on the posterior border : the posterior border of 

 the propodite of the same pair has some spinules. 



The 6th abdominal tergum of the male is a good deal broader than 

 long, its sides are suddenly convergent near the distal end and its distal 

 border is concave. 



In the Indian Museum is a single specimen from the Andamans. 

 Among the specimens kindly lent me for examination by Dr. H. J. 

 Hansen of the Copenhagen Museum is a male from Paumban (Palk 

 Str.). 



A small species : carapace 9 millim. long. 125 millim. broad. 



Thalamita Wood-Masoni var. taprohamca. 



Differs from T, Wood-Masoni. type, much as T. admeta differs from 

 var. T. savignyi : — 



(1) the frontal lobes are deeper cut : 



(2) the sculpture of the chelipeds is much less distinct : the squa- 

 miform markings on the arm wrist and hand, and the costae of the wrist 

 and hand are much worn ; the spinules on the outer angle of the wrist 

 are blunt and obsolescent ; and the spines on the upper surface of the 

 hand are small and blunt — the anterior two of the outer row being 

 smaller and blunter than the others ; the fingers are much shorter. 



In the Indian Museum is a single specimen from Ceylon. 



64. Thalamita oculea n. sp. 



Carapace rather more than two-thirds as long as broad, closely and 

 densely pilose. When denuded, the transverse ridges are prominent 

 and more numerous than in any other Indian species, because besides 

 the ridges found in T. danse etc., and besides the additional ridge across 

 the cardiac and neighbouring part of the branchial regions found in 



