83 



In an adult female the carapace is IH inch long and 2tV inches broad. 



9 

 5730 



. Madathoray, Travancore. Travancore Museum. 1 9 (type). 



Kulattupuza, Travancore. N. Aniiandale. 1 young $, 



8. Pakatelphusa (Barytelphusa) cunicularis, Westwood. (Fig. 56.) 



Telphiisa cunieularis, Westwood, Trans. Entomol. See, I., 1836, p. 183, pi. xix. 



Potamoii {Polamomiiiles) niiiirularix, M-Ary J. Rathbim, Nouv. Archiv. du Museum (4), VII., 1905, p. 1S4 

 (ubi synnu.). pi. XV., fig. 10. 



Differs from P. jacquemontii in the following particulars : — 



The carapace is broader, its length being, in both sexes, well under three- 

 fourths its greatest breadth ; it is also, as a whole, more convex ; and the lateral 

 jDarts of the epibranchial regions are less rugose, especially behind. 



The cervical groove is not so broad and deep, and is in places indistinct 

 or interrupted ; it does not distinctly divide the post-orbital crests f}'om the lateral 

 epibranchial tooth, as is well shown in Westwood's figure. 



The front is more deflexed, and is perhaps even less distinctly bilobed. 



The antero-lateral borders of the carapace are more convex, and the lateral 

 epibranchial tooth is very much smaller, being often almost obsolete. 



Owing to the more superficial nature of the cervical groove, the post- 

 orbital crests are not distinctly separated from the lateral epibranchial tooth 

 (or its site), and sometimes appear quite continuous with that tooth. 



The merus of the external maxillipeds is more quadrangular in shape, its 

 anterior border being less oblique ; and the longitudinal groove of the external 

 surface of the ischium is usually quite indistinct. 



In the chelipeds the fixed finger is even broader, and none of the teeth 

 — except sometimes one at the base of the fixed finger of the larger chehped — 

 is enlarged. 



The species seems not to attain anything like the size o^ jacquemontii. 



(39.39 

 ^~* 



4005 4027 

 IT' ~^- 

 3606-9 3553-5 



~^r~' ~ir- 



4887-90 



9 



Coonoor, Nilgiris. F. Day. 3 $ . 



Shervaroy Hills. F. Beddome. 2 (J , 1 ? . 



Shevvaroy Hills. W. Daly. 3 (J , 4 ?. 



S. Areot. Museum Collector. 2 (^, 2 $ (all young). 



9. Paratelphusa (Barytelphusa), sp. prox. cunicularis. 



In the collection are ten little specimens from South India, which, but for 

 their size, I should refer to P. cunicularis. The largest of them is an egg- 



