.69 



cut into three teeth (exclusive of the orbital angle), of which the anterior 

 is broad and the two posterior are claw-like. Postero -lateral borders defined 

 in all their extent. 



Epigastric and post-orbital crests distinct enough, but low and l^lunt, 

 the former well in advance of the latter, the latter sometimes passing to the 

 base of the anterior epibranchial spine, but usually becoming indistinct 

 and broken, or even obsolete, beyond the point of contact with the 

 cervical groove. 



In the male abdomen the 6th segment is about twice as broad as lonir, 

 and the 7th is hardly as long as broad. 



Except that the outer surface of the ischium of the external maxillipeds 

 is not longitudinally grooved, the mouth-parts are as in P. dayanum. 



Chelipeds very unequal in Iwth sexes, but most so in the adult male ; 

 their surface is practically smooth ; the usual spine is present near the far 

 end of the upper l)order of the merus and at the inner angle of the carpus, 

 the latter being without any accessory cusp at base ; the fingers are longer 

 than the palm ; in the smaller cheliped they do not gape, but in the larger 

 cheliped (which bears molariform teeth) they gape much, particularly in 

 old males. 



Legs about as long as the smaller cheliped, rather slender ; the three 

 terminal joints are a good deal furred, especially at the edges ; the longer 

 propodites are more than twice as long as broad, and are almost as long 

 as their dactyli. 



In a large adult the carapace is ItV inch long, 1/Vr inch broad, 

 and T^ths inch deep. 



4061 



4 ■ 

 4068 



4 

 4069 



4 

 3137 



5 

 7796-7807 



9 

 5533 



KT' 

 553 4 

 To" 

 5545 



To"' 



5548 

 To"' 

 5445 

 W 

 5446 

 To"' 



Hazrapur, Jessore. J. Wood-Mason. 2 (J, 12 $ 



Roorkee. F. Day. 4 cJ , 3 ? 



Purnea. Museum Collector. 3 ^J , 2 $ 



Hazrapur, Jessore. J. Wood-Mason. 1 cJ j 6 ? 



Darbhanga. Miss Nora Coates. 3 <J , 6 9 



Barnagur, near Calcutta. A. Alcock. 1 (J , 1 $ 



Santipore, near Calcutta. A. Alcock. 4^,1? 



Kissengunj. A. Alcock. 2 cJ , 3 $ 



Mangura, Jessore. J. Wood-Mason and A. Alcock. 3 cJ , 1 5 



Lucknow. Museum Collector. 1 $ . 



Abjulgar, Bijnor. Museum Collector. 1 $ ,1 $ . 



