48 
CONCHOLOGIA INDICA. 
10. N. G-angetiea ? var. Theobaldi, Benson. 
Tenasserim River : Pegu. 
This was regarded by Benson as a large variety of 
his Gangetic species : it looks distinct, but without more 
specimens its separation would, perchance, be un- 
advisable. 
PLATE CXVII. 
ACMELLA, HYDROC^JRA, 
OPISTHOSTOMA. 
1. A. tersa, Benson, An. Nat. Hist. 1853 (ser. 2, vol. 
11), p. 285 (Cyclostoma). — Pfeif. Mon. Pneum. vol. 
2, p. 158, (as Hydroctena). — Acicula t. Blanf. An. 
Nat. Hist. 1869 (ser. 4, vol. 3), pi. 16, f. 2. 
In moss from Khasi Hills. 
2. H. Blanfordiana, Stoliczka, J. Asi. Soc. Beng. 
1873 (vol. 41, pi. 2), p. 332, pi. 11, f. 5, 6. 
Ataran Valley, near Moulmein. 
3. H. pyxis, Benson, An. Nat. Hist. 1856 (ser. 2, 
vol. 17), p. 232. — Pfeif. Mon. Pneum. vol. 2, p. 161. 
Thyet Myo, Birmah : near Henzada, Pegu. 
4. H. illex, Benson, An. Nat. Hist. 1856 (ser. 2, vol. 
17), p. 231. — Pfeif. Mon. Pneum. vol. 2, p. 161. 
Thyet Myo : Phie Than, Tenasserim. 
5. H. frustillum, Benson, An. Nat. Hist. 1860 (ser. 
3, vol. 6), p. 193. — Pfeif. Mon. Pneum. vol. 3, p. 
251 (as Georissa). 
Ava. 
6. H. Rawesiana, Benson, An. Nat. Hist. 1860 (ser. 
3, vol. 6), p. 193. — Pfeif. Mon. Pneum. vol. 3, p. 
252 (as Georissa). — Th. and Stol. J. Asi. Soc. Beng. 
1872 (vol. 41, pt. 2), p. 332 (as Georissa). 
Near Moulmein. 
7. H. saritta, Benson, An. Nat. Hist. 1851 (ser. 2, 
vol. 8), p. 188 (as Cyclostoma). — Pfeif. Mon. Pneum. 
vol. 1, p. 314 (ditto). 
Near Cherra Poongee, Garo Hills, beyond 
Eastern boundaries of Bengal. 
8. O. Fairbankii, Blanford, Proc. Zool. Soc. 1866, 
p. 448, pi. 38, f. 14. 
Near Khandalla, Western Ghats, between 
Bombay and Poonah. 
9. O. macrostoma, Beddome’s MS. in Blanf. J. Asi. 
Soc. Beng. 1869 (vol. 38), p. 139, pi. 16, f. 7. 
Bramagiri Hills, Wynaad, not far from the 
Malabar Coast. 
10. O. Nilgirieum, W. and H. Blanford, J. Asi. Soc. 
Beng. 1861 (vol. 29), p. 121 ; Cont. Mai. Ind. pt. 
1, p. 5 : Proc. Zool. Soc. 1866, pi. 18, f. 13. 
Pykara, top of Nilgherries, in fallen leaves. 
PLATE CXVIII. 
CLAUSILIA. 
See previous plate, xxiv. 
1. C. Ceylanica, Benson, An. Nat. Plist. 1863 
(ser. 3, vol. 11), p. 89. — Pfeif. Mon. Helic. vol. 6, 
p. 427. — Blanf. J. Asi. Soc. Beng. 1872 (vol. 41, 
pt. 2), pi. 9, f. 4. 
Southern parts of Ceylon. 
The whorls are densely set with longitudinal raised 
wrinkles, which are spirally decussated on the final 
volution. 
2, 3. C. Gouldiana, Pfeiffer, Mai. Blat. vol. 3 
(1856), p. 259: Mon. Helic. vol. 4, p. 724 : Novit 
Conch, vol. 1, pi. 34, f. 18 to 20. 
Mergui: near Moulmein, British Birmah. 
This may be the insignis of Gould (not of Pfeiffer). 
4. C. ovata, Blanford, J. Asi. Soc. Beng. 1872 
(vol. 41, pt. 2), p. 206, pi. 9, f. 17. 
Tonghu, Birmah. 
5, 6. C. ferruginea, Blanford, ,J. Asi. Soc. Beng. 
1872 (vol. 41, pt. 2), p. 202, pi. 9, f. 7. 
Naga Hills, and North Cachar. 
7. C. monticola, Godwin-Austen, in Blanford’s 
monograph in the J. Asi. Soc. Beng. 1872 (vol. 41, 
pt. 2), p. 205, pi. 9, f. 13. 
North Cachar. 
8, 9. C. Arakana, Theobald, in Stolic. J. Asi. Soc. 
Beng. 1872 (vol. 41, pt. 2), p. 210, pi. 9, f. 20. 
Aracan Hills ; Mai-i, Sandoway. 
10. C. Philippiana, Pfeiffer, Zeits. Mai. 1847, 
p. 69 : Mon. Helic. vol. 2, p. 43 : Ivuster’s ed. 
Chemn. Claus, p. 100, pi. 11, f. 7, 8, 9. — Blanf. J. 
Asi. Soc. Beng. 1872 (vol. 41, pt. 2), pi. 9, f. 14. 
Moulmein, and near Mergui. 
