18 



CONCHOLOGIA INDICA. 



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

 B. goniostoma, Hutton MSS. — Paludina pulchella, 

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

 f. 19. 



Purneali. 



8, 9. B. Nassa, Theobald, J. Asi. Soc. Beng. 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. 123 (name for species in vol. 1, 

 p. S63), as Paludina : J. Asi. Soc. Beng. vol. 24 

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

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

 River Ken : Coosa River. 



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

 ser. 3, vol. C (1860). 



Near Quilon, Travancore. 

 The minute spiral striolae are characteristic. 



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

 (1836), p. 746. 

 Sylhet. 

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

 the third volume of the Journal of the Asiatic Society 

 of Bengal. 



7, 10. B. stenothyroides, Dohrn, Proc. Zool. Soc. 

 1857, p. 123. 



Ceylon ; Nilgherries ; Poonah ; Madras ; 

 S. Arcot; Trichinopoli, &c. 



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

 Verhandl. Zool. Bot. Wien. 1862, p. 1154. 

 Purneah. 



PI;ATE XXXIX. 



PLANORBIS. 



1, 2, 3. P. ealathus, Benson, An. Nat. Hist. ser. 2, 

 vol. 5 (1850), p. 349. 



NearMoradabad; Kattiawar; Ceylon ; Cashmire. 



4, 5, 6. P. Trochoideus, 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. r^< J-^r-.' 

 Barrakpore. 



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

 p. 349. 



Near Moradabad : Ceylon. 



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

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

 392. — MUller, 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, fi-om Bombay to Cachmifc. 



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 O. Fabricius). Chemnitz 

 %ured it (Conch. Cab. vol. 9, pi. 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. 



Barrakpore. 



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

 p. 350. 



River 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. 341. — Martens, Mai. Bliit. vol. 14, 

 p. 216. ^ 



E.Bengal. . /^VM^j-^vTC-ti-n— s /2«^ » 



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



The species is often much Hatter and larger than the 

 specimen delineated. 



A form with a very contracted aperture was taken 

 from tanks near Chanda. 



