PALUDINID^. 25 



20. Paludina naticoides. 



Paludina naticoides, Theohald, J. A. S. B. 1865, p. 274, Shan States = 

 P. shanensis, Theoh., Catal., 1876, p. 18 j Con. Indica, pi. 76, jig. 1; 

 Nevill, Cat. Fasc. E, p. 34. 



4 Upper Salween ; coll. W. Theobald, Esq. 



var. concolor. 



Of a light, uniform, olive-green colour; whorls not so 

 exserted as usual, last one less swollen in proportion, more 

 regularly and globoselj swollen, with a single, somewhat incon- 

 spicuous, raised ridge at the periphery ; aperture small, with 

 the outer margin regularly rounded. Long. 25j, diam. 18 mil. 



1 Upper Salween (type var.) ; coll. W. Theobald, Esq. 



var. carinata. 

 P. naticoides, var. carinata, Theobald, pi. IX, Jig. 3, and Con. Indica, pi. 76, 



fig- 4. 



2 Ava; coll. W. Theobald, Esq. 



var. fasciata. 



p. naticoides, var. fasciata, Theohald, pi. IX, jigs. 1 S^ 2, and Nevill, Cat. 

 Fasc. F, p. 34. 



7 Upper Salween and Ava ; coll. W. Theobald, Esq. 



21. Paludina eyriesi. 



Paludina Eyriesi, Morelet, J. de C. 1865, Cambodia, (not Cochin-China, 

 vide Ser. Con. IV, p. 303J ; var. = P. jischeriana, Mabille and Le 

 Mesle, Rev. Zool. 1866, Battambang. 



1 Cambodia; ex c. A. Morelet, Esq. 



This Mollusk is edible, fide Journ. de Conch., 1876. 



22. Paludina erassa. 



Paludina erassa, Hutton ms., Benson, J. A. 8. B. 1836, " Rv. Ghimti at 

 Jonpur" and "greenish eroded var. jrom Sylhet," jor Paludina sp., 

 Hutton, I. c. 1834, Chunar ; jide Rv. and Con. Indica = P. obtusa, 

 Troschel ; Wood- Mason, Ann. and Mag. 1881 [anatomy]. 



11 Loc. ? (? typical) ; ex c. As. Soc. Bengal. 



30 Hazrapur, Jessor Dist. ; coll. G. Nevill, Esq. 



30 Barak Rv., Cachar, $ $ ; coll. J. Wood-Mason, Esq. 



