89 



In an adult male the carapace is It^ inch long, 1|;} inch broad, and flths 

 inch deep. 



6990 

 3 ■ 

 3532-7 3541-5 



7 ' 7 

 6956 



Jubbulpore. F. Stciliczka. 4 (J, 7 $. 



Clniiiar. J. Wood-Mason. 4 jj , 6 9. 



Sirguja, Chota Nagpur. V. Ball. 3 (J , 1 $ . 



17. Paratelphusa (Barytelphusa) pollicaris, Alcock. (Fig. 22.) 



Colour in spirit rich chocolate, with blackish point.s to the chelae. 



Carapace flat, its length in the adult male about three-fourths its greatest 

 breadth and more than that in the adult female, its depth a good deal less than 

 half its length ; the lateral half of each epibranchial region is obliquely 

 rugulose ; the front and sometimes the anterior limit of the gastric region are 

 also rugulose. 



Cervical groove deep and broad ; it runs wide and distinct right up to 

 a point behind the lateral epibranchial tooth on either side. All the regions 

 are distinct, as is the median mesogastric groove, but there is no other 

 ai'eolation. 



Front in adults rather more than one-fomth the greatest breadth of the 

 carapace, moderately declivous, square-cut, though its sides converge ; its edge 

 feebly crenulate, feebly sinuous. 



External orbital tooth broad, low, blunt, meeting the lower border of the 

 orbit without any notch. 



Antero -lateral margins of carapace well defined but hardly cristiform ; 

 irregularly crenulate ; about half their extent lies in front of the lateral 

 epibranchial tooth, which, though distinct, is blunt and hardly prominent. 



The epigastric and post-orbital crests form one strong, almost straight, 

 feebly-crenulate ridge, running, on either side, from the mesogastric furrow 

 obliquely into the lateral epibranchial tooth, the tooth in fact being formed by the 

 junction of the edge of the carapace with the crest; the epigastric portion of 

 each crest is distinguished by its thickness and rugosity. 



In the abdomen of the adult male the 6th segment has convergent sides, 

 but its length exceeds its distal breadth ; the length of the 7th segment exceeds 

 its greatest breadth. 



The mouth-parts conform to the description given for P. jacquemontii, the 

 only notable difference being that the groove of the ventral surface of the 

 ischium of the external maxiUipeds is faint and sometimes absent. 



Chelipeds unequal in both sexes, more so in the male ; the fingers broad, 

 particularly the fixed finger, and having fairly even teeth. The exposed 

 surfaces of the merus and carpus and the upper surface of the palm are 



