122 On the Species of Paratelphusa. 



§ I. Postahdomen of the male with its sides converging from the base 

 of the third to the apex of the fifth somite, thence to its extremity 

 narrow. (F?V?e J. A. S. B. 1871, vol. xl. pi. 12. fig. 4.) 



1. Paratelplnisa spinigera. 



Paratelphusa spinigera, Wood-Mason, J. A. S. B. 1871, vol. xl. part 2, 



pi. 12. figs. 1-4. 

 Telphusa spinigerct, ^Tiite, List Crust. Brit. Mus. p. 30 (nomen nudum). 



Hah. Hardwar ; Piinieah ; Jessore District ; Calcutta, &c. 

 In both fresh and brackish water. 



2. Paratelphusa tridentata. 



Parathelphttsa tridentata, Milne-Edwards, Ai'ch. du Mus. 1854-55, vol. 

 vii. p. 171, pi. 13. figs. 1,1a, lb: Ann. des Sci. Nat. 3' s6r. t. xx. 

 p. 213 ; Von Martens, Arch, fur Naturgeseh. 1868, pp. 19 et seq. 



Hob. Java ; Sumatra ; Borneo. In fresh water. 



3. Paratelphusa sinensis. 



Parathelphusa sinensis, Milne-Edwards, op. cit. p. 173, figs. 2, 2 a ; Von 

 Martens, op. cit. 



Hah. Bangkok and Petshaburi, in Siam ( Vo7i Martens) ; 

 !Moulmeinj Burmah ( Wood-2Iaso)i) . In both fresh and brackish 

 water. 



§ II. Postahdomen of the male triangular. (Vide J. A. S. B. 1871, 

 vol. xl. pi. 11. fig. 5.) 



4. Paratelphusa Martensij n. sp., W.-M. 



Hah. Hardwar ; Purneah ; Allahabad ; Jessore District. 

 In fresh water. 



5. Paratelphusa Dayana. 



Paratelphttsa Dayana, Wood-Mason, J. A. S. B. 1871, vol. xl. p. 192, 

 pi. xi. 



Hah. Prorae and Maundalay, Upper Bunuah. In fresh 

 water. 



6. Paratelphusa Edwardsiy n. sp., W.-M. 



Hah. Garo, Dafla, and Naga hills; Cachar ; Saddya ; 

 Harmatti. In fresh water. 



7. Paratelphusa crenulifera^ n. sp., W.-M. 

 Hah. Pegu Yorpah. In fresh water. 



The species described by me have all been found in localities 

 the fauna of which is largely leavened with Malay forms, both 

 identical and representative. 



