122 On the Sjjeci'es of Paratelphusa. 



§ I. Postabdomen 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. ( Vide J. A. S. B. 1871, vol. xl. pi. 12, fig. 4.) 



1. Paratelphusa spiiiigera. 



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



pi. 12. figs. 1-4. 

 Telphusa spinigera, White, List Crust. Brit. Mus. p. 30 (nomen nudum). 



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

 In both fresh and brackish water. 



2. Paratelphusa tridentata. 



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

 vii. p. 171, pi. 13. figs. 1, 1 a, 1 6 ; Ann. des Sci. Nat. 3* s^r. t. xx. 

 p. 213 ; Von Martens, Arcli. flir Naturgescli. 1868, pp. 19 et seq. 



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



3. Paratelphusa sinensis. 



Parathelphusa sinensis, Mibie-Edwards, op. cit. p. 173, figs. 2, 2 « ; Von 

 Martens, op. cit. 



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

 Moulmein, Burmah ( Wood-Mason) . In both fresh and brackish 

 water. 



§ II. Postabdomen of the male triangidar. ( Vide J, A. S. B. 1871, 

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



4. Paratelphusa Marte^isi^ n. sp., W.-M. 



Hah. Hardwar ; Purneah ; Allahabad ; Jessore District. 

 In fresh water. 



5. Paratelphusa Dayana. 



Paratelphusa Dayana, Wood-Mason, J. A. S. B. 187l, vol. xl. p. 192, 

 pi. xi. 



Hah. Prome and Maundalay, Upper Burmah. In fresh 

 water. 



6. Pai-atelphusa Edioardsi, n. sp,, W.-M. 



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

 Harmatti. In fresh water. 



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

 Hah. Pegu Yomah. 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. 



