PLATE XLVIII. 
CYCLOPHOEUS. 
CONCHOLOGIA INDICA. 
PLATE XLIX. 
23 
1. C. tryblium, Benson, Ann. Nat. Hist. ser. 2, vol. 
14 (1854), p. 413. — Pfeif. Mon. Pneum. vol. 2, 
p. 45. 
Darjiling; Sikkim Himalayah. 
2. C. afifinis, Theobald. See pi. 2, f. 7. 
The peculiarity of lip referred to by the author was 
simply accidental. The individual here represented, 
which reminds one of a dwarf carinated Siamensis, is 
almost the only one known to us, the supposed second 
example alluded to having proved to be distinct. 
3. C. Indieus, Pfeiffer (as of Deshayes), Mon. 
Pneum. vol. 1, p. 77 (from Cuming’s collection); 
Kuster, ed. Chemn. Cyclos. pi. 33, f. 3, 4 (as 
Cyclostoma). 
Isle of Elephanta, near Bombay. 
It may be doubted whether this can be the Cyclo- 
stoma Indicum of Deshayes in Belanger’s Voyage 
(Zook Moll. pi. 1, f. 4, 5), the lower face of which does 
not suit any example we have seen. 
4. C. Malay anus, Benson, An. Nat. Hist. ser. 2, 
vol. 10 (1852), p. 269 (as Cyclostoma). — Pfeif. 
Mon. Pneum. vol. 2, p. 42. — Reeve, Conch. Icon. 
Cycloph. f. 2. 
Shan States. 
The previously recorded locality was Pulo Penang. 
The Cyclostoma volvulus of Souleyet (Vo y. Bonite, 
Moll. pi. 30, f. 18-21) is considered by Pfeiffer to be 
identical. 
5. C. Pearsoni, Benson. See plate 1, f. 6. 
We have figured Benson’s type, which displays no 
traces of that articulated keel which forms so pro- 
minent a feature in the next species. 
6. C. Haughtoni, Theobald. See plate 1, f. 3, and 
plate 3, f. 6. 
A characteristic form. In our previous figures the 
articulation was inadequately represented, few, if any, 
traces of it having been visible upon the portion de- 
lineated, though freely developed upon the opposite 
side. 
7. C. Siamensis, Sowerby, Thesaur. Conch, vol. 1, 
p. 158*, pi. 31, f. 392, 3 (as Cyclostoma). — 
Benson, An. Nat. H. ser. 2, vol. 19. — Reeve, 
Conch. Icon. Cycloph. f. 19. — Pf. Mon. Pneum. 
vol. 1, p. 56. 
Lacat, and Teria Ghat. 
PTEROCYCLOS, including SPIRACULUM, 
and RHXOSTOMA. 
See previous plate v. 
1, 2. P. (Sp.) Fairbanki, Blanford, J. Asi. Soc. 
Beng. 1869, p. 135, and Cont. Ind. Mai. pt. 10 
(as Spiraculum). 
Pulney Hills, S. India. 
3, 4. P. (Sp.) Andersoni, Blanford, Proc. Zool. 
Soc. 1869, p. 447 (as Spiraculum). 
Near Bhamo, Upper Birmah. 
5, 6. P. nanus, Benson, An. Nat. Hist. ser. 2, 
vol. 8 (1851), p. 450. — Reeve, Conch. Icon. Pter. 
f. 12. 
Nilgherries. 
7, 8. P. Cumingi, Pfeif. Proc. Zool. Soc. 1852, 
p. 158 ; Mon. Pneum. vol. 2, p. 29. — Reeve, Conch. 
Icon. Pter. f. 14. 
Ceylon. 
9, 10. P. (Sp.) Gordoni, Benson, An. Nat. Hist. 
1863, May (as Opisth.).' — Pfeif. Mon. Pneum. 
vol. 3, p. 36 (as Pt.). — Theob. J. Asi. Soc. Beng. 
1870, vol. 39, pt. '2, p. 399, pi. 18, f. 6. 
Sittonug, near Tongbu ; near Moulmein, 
Birmah. 
PLATE L. 
HELIX. 
1, 2. H. mammillaris, Blanford, J. Asi. Soc. Beng. 
1865, p. 69, and Cont. Mai. jut. 5 (as Nanina). — 
Pfeif. Mon. Helic. vol. 5, p. 88. 
Akoutong, Pegu. 
3, 4. H. Helieifera, Blanford, J. Asi. Soc. Beng. 
1866, p. 34, and Cont. Mai. pt. 5 (as Nanina). 
Aracan Hills, near Prome. 
5. H. acudueta, Benson, An. Nat. Hist. ser. 2, 
vol. 5 (1850), p. 214. — Reeve, Conch. Icon. Helix, 
f. 739. — Pfeif. Mon. Helic. vol. 3, p. 78 ; vol. 4, 
p. 67. 
Nilgherries. 
