18 



CONCHOLOGIA INDICA. 



7. B. lutea, Gray, Annals Phil. 1824, p. 277.— 

 B. goniostoma, Hutton MSS. — Paludina pulchella, 

 Kust. (not Bens.) ed. Chem. Palud. p. 30, pi. 6, 

 f. 10. 



Purneah. 



8, 9. B. Nassa, Theobald, J. Asi. Soc. Bang. vol. 34, 

 pt. 2 (1865). 



Shan States. 



10. B. Iravadica, Blanford, Proc. Zool. Soc. 1869, 

 p. 446. 



Marshes near Mandelay, Birmah. 



PLATE XXXVIII. 

 BYTHINIA. 



1,4. B. Cerameopoma, Benson, Gleanings Sc. 

 Calcut. vol. 2, p. 125 (name for species in vol. 1, 

 p. SG3), as Paludina : J. Asi. Soc. Beng. vol. 24 

 (1855), p. 131. — B. Ceranospatana, Frauenfeld, 

 Verhandl. Zool. Bot. Wien. 1862, p. 1156. 

 Kivcr Ken : Coosa River. 



2, 3. B. Travancorica, Benson, An. Nat. Hist, 

 scr. ;i, vol. 6 (1860). 



Near Quilon, Travancore. 

 Tlio minute spiral striolaj are characteristic. 



5, 6. B. pulchoUa, Benson, J. Asi. Soc. Beng. vol. 5 

 (183(;), p. 74G. 

 Sylhet. 



This is stated to be the Valvata no. 9 of Ilutton in 

 the third vohuiio of the Journal of the Asiatic Society 

 of Bongjil. 



7, 10. B. stenoth.yToid.08, Dolirn, Proc. Zool. Soc. 

 1857, p. 123. 



Ceylon; Nilghcrries; Poonah ; Madras; 

 S. Arcot; Trichinopoli, &c. 



8, 9. B. orciila, Benson, MSS. in Frauenfeld, 

 Verhandl. Zool. Bot. Wien. 1802, p. 1154. 

 rurnoah. 



ri.A TI', WXIX. 



PLANORBIS. 



I, 2. 3. P. cahvthus, Benson. An. Nat. Hist. ser. 2, 

 vol. 5 (1850), p. 349. 



NoarMorudiibad; Kattiawar; Ceylon ; Cashmire. 



4, 5, 6. P. Troohoideus, Benson, J. Asi. Soc. Beng. 

 vol. 5 (1836), p. 742 (Glean. Scien. Calcutta, vol. 

 1, pi. 8, f. 10) ; An. Nat. Hist. (1850), ser. 2, vol. 

 5, p. 352. 



Barrakpore. 



7, 8, 9. P. coenosus, Benson, An. Nat. Hist. 1850, 

 p. 349. 



Near Moradabad : Ceylon. 



10. P. exustms, Desh. Belang. Voy. Ind. Orient. Zool. 

 p. 417, ph 1, f. 11-13 (1834): ed. Lam. voL 8, p. 

 392.— Miiller, Synopsis Test. p. 34. P. Indicus, 

 Benson, J. Asi. Soc. Beng. vol. 5, (1836), p. 743. 

 — Martens, Mai. Blatt. vol. 14, p. 212. 



Universally diffused, from Bombay to Cashmire. 



Otho Muller (Verm. Ter. et. Fluv. pt. 2, p. 157), 

 indicated this shell as the Coromandel form of corneus ; 

 hence probably the manuscript name of P. Coroman- 

 delianus (Kuster, as of 0. Fabricius). Chemnitz 

 figured it (Conch. Cab. vol. 9, pL 127, f. 116, 117), as 

 the Indian variety of the same species, to which it was 

 referred with doubt, also, by Hutton (J. Asi. Soc. vol. 

 3). A figure of it appeared in the Gleanings of Science 

 (vol. 1, pi. 8, f. 6). 



PLATE XL. 



PLANORBIS. 



1, 2, 3. P. Cantori, Benson. An. Nat. Hist. 1850, 

 p. 349. 



Barr.ikpore. 



4, 5, 6. P. Sindicus, Benson. An. Nat. Hist. (1850), 

 p. 350. 



Kiver Indus, Upper Sinde. 

 Figured from the type, the only example known 

 to us. 



7, 8. 9. P. umbilicalis, Benson, J. Asi. Soc. Beng. 

 vol. 5 (1836), p 741.— An. Nat. Hist. ser. 2, vol. 5 

 (1850), p. oil. — Martins, Mai. Bliit vol. 14, 

 p. 216. 



E. Bengal. 



10. P. exustus, Deshiiycs. — See plate 39. f. 10. 



The species is often much flatter and larger than the 

 specimen delineated. 



A form with a very contracted aperture w.is taken 

 from tanks near Chanda. 



