CYCLOTUS §. 9. 10. 
25 
59. ©. ffloeiatetiis Benson. 
T. umbilicata, turbinato-depressa , lineis confertis elevatis 
cincta, albida, epidermide fuscula; spira conoidea, apice sub- 
acuto, papillari; sutura profunda; anfr. 4 1 / 2 i rotundati, juxta 
suturam laevigati, ultimus cylindraceus ; apertura obliqua, sub- 
circularis , superne vix angulata, prope umbilicum conicura, 
perspectivum leviter sinuata; perist. duplex: internum breviter 
porrectum, externum anguste patens. — - Operc. extus conca- 
vum, anfractibus paucis, margine scabre elevato. — Diam. 
maj. 3, min. 2 1 / 2 , alt. 2 1 / 2 mill. (Mus. Benson.) 
Cyclostoma filocinclum Bens, in Ann, and Mag. 2d. ser. VIII. p. 188. 
— — Chemn. ed. nov. p. 379. t. 49. f. 26 — 28. 
Cyclostomus ? filodnctus Pfr. Consp. n. 325; Mon. Pneum. p. 221. 
n. 54. 
— — Gray Cat. Phan. p. 155. 
Cyclotus filodnctus Bens, in Ann. and Mag. 1854. XIV. p. 416. not. XV. 
p. 16. 
— — H. g t A. Adams Gen. rec. Moll. II. p. 275. 
Habitat in montibus Neilgherries. 
§. io. 
60. variej^atus Swains® (Coll. 32. — Gray Phan. 
p. 23. — Ad. Gen. p. 275. — - Cyclost. planorhu- 
lum Sow. — Cycl. cornu vcnatoriurn Pet.) . . 
61. planorfmlus JLaen. {Ad. Gen. p.275. — Helix 
cornu vcnatoriurn Gm. Syst. p. 3641. n. 227? — 
Ddlw. Cat. II. p. 910. n. 55? — Cyclostoma pla- 
norbula Lam., Desk. Traite elem. t. 82. f. 3. 4. — 
Pterocyclos planorbulus Pfr. Mon. Pneum. n. 3. — 
Gray Phan. p. 26.) 
* % 
% 
62. ? incomptus Sow. (Coll. 33. — Ad. Gen. p. 275. 
— Pterocyclos? incomplus Pfr. Mon. n. 1. -4 Ch. ed. 
nova p. 235. n. 9. — Gray Phan. p. 25. — Nova 
Granada. Conf. Bens, in Ann. and Mag. 2d. ser. 
XV. p. 16.) 
Mon. p. 39. 
- 43. 
II. Opisthoporus Benson. 
Operculum calcareum, circulare, crassiusculum, multispi- 
ratum, duplex, utrinque concaviusculum, disco intern o epider- 
mide cornea lubrica vestito, externo calcareo, scabro, ambobus 
lamina spirali, erecta recurva interposita junctis , anfractuum 
interstitiis interne vacuum praebentibus, margine circumdante 
concavo. 
