188 
OTOPOMA §. 4. 
obliqua, subangulato-rotundata, intus concolor; perist. subex- 
pansum, incrassatum , marginibus disjunctis, dextro superne 
sinuoso, angulato-flexuoso , columellari fornicatim reflexo, ad- 
presso , perforationem fere claudente. — Operc. testaceum, 
tenuiusculum , griseum, anfractibus paucis, rapide accrescen- 
tibus. — Diam. maj. 17, min. 13'/ 2 , alt. 14 mill. Ap. intus 
8 mill, longa, 7 lata. (Coll. Nr. 140.) 
Cyclostoma multilineata Jay Catal. 1839. p. 123. t. 7. f. 12. 13. *) 
— flexilabrum Sow. Thes. N. 112. p. 130. t. 31. f. 258. 259. **) 
— — Chemn. ed. II. N. 87. p. 91. t. 11. f. 7. 8. 
— — Jay Catal. 1850. p. 256. N. 5869. 
— flavilabre Petit in Journ. Conch 1850. I. p. 42. 
Tropidophora flexilabrum Gray Catal. Cycloph. p. 41. N. 15. 
Otopoma muUilineaium Pfr. Consp. N. 274. 
Habitat in insula Madagascar (Powis). 
XXI. Cyclostomus Montfort. 
Operculum subovale, testaceum, planum, anfractibus 4 — 5 
sensim crescentibus , margine simplice, nucleo subexcentrico. 
Testa depressa, globoso - turbinata vel ovato - turrita ; apertura 
ovalis; peristoma simplex, rectum vel expansum, interdum 
duplicatum. 
Cyclostomus Montfort Conch, syst. II. p. 286. 
— Gray in Proc. Zool. Soc. 1847. p. 181. n. 514. 
— Pfr. in Zeitschr f. Malak. 1851. p. 159. Consp. p. 31. 
— et Tropidophora Gray Catal. Cycloph. p. 42 et 37. 
Tropidopkora Trosch. in Zeitschr. f. Malak. 1847. p. 44. 
— et Cyclostoma (pars) Pfr. in Zeitschr. f. Malak. 1847. 
p. 106. 107. 
Cy do stoma Lam. et Auctt. pars. 
*) A very pretty shell, with 5 reddish lines surrounding the body whorl. 
The umbilicus is closed ; the aperture is round , but the margin is indented 
on the external and superior part. — Hab. ? (Jay 1. c ) 
T. globoso - conoidea , crassa, laevi , brunnescente ; spira obtusa; 
anfr. 4'/ a subventricosis, ultimo rotundato, fasciis castaneis spiralibus ornato ; 
apertura fere circular!; peritremate incrassato, reflexo, postice sinuato ; urn- 
bilico minimo, lineari vel clauso. (Sow r . 1 c.) 
