252 Records of the Indian Museum. [Vol. Ill, 1909.] 



Paratelphusa {Barytelphusa) pulvinata, sp, nov. 



Allied to P. cunicularis , but having a prodigiously convex 

 carapace, a cervical groove deep-cut in all its course, and, in the 

 adult male, a 6th abdominal segment the greatest breadth of 

 which is barely two-thirds its length. There is no other Indian 

 species of this subgenus that has such a narrow abdomen. 



From Coorg and Ootacamund. 



Paratelphusa (Barytelphusa) pollicans, sp, nov. 



This species is, in a way, transitional between P. (B.) jac- 

 quemontii, Rathbun, and P. [B.) lugubris, Wood-Mason, The cara- 

 pace is squarish and flattish and about half of its antero-lateral 

 border lies in front of the epibranchial tooth. The epigastric and 

 post-orbital crests are continuous, the lateral epibranchial tooth is 

 small and not prominent : the fingers of the chelae are very broad, 

 particularl}^ the fixed finger. 



From South India. 



In my concluding preliminary paper I hope to give brief 

 diagnoses of some new species of Liotclphusa and Globitelphusa. 



I should like to mention here that the species and varieties 

 of the " Potamon lugubre " group diagnosed in my paper No. 2 do 

 not belong to the genus Potamon at all: ''Potamon lugubre," 

 Wood-Mason, belongs to the new subgenus Barytelphusa of the 

 genus Paratelphusa , having the terminal joint of the mandibular 

 palp bifurcated from the base, and the 6th abdominal segment of 

 the adult male not much broader than long. 



