CYCLOSTOMUS §. 2. 3. 
205 
25. c. I'tlSCIllUS Pfr. 338 
T. angustissime umbilicata , globoso-conica , tenuis , lineis 
elevatis spiralibus subconfertis , liraque peripherica validiore, 
carinaeformi sculpta, vix nitidula, unicolor fuscula, fascia 1 
angusta rufa infra carinam pallidam ornata; spira conica, 
obtusiuscula ; anfr. 5 convexi, ultimus interdum carina secunda 
superne notatus, basi minute spiraliter sulcatus ; apertura parum 
obliqua, rotundato-ovalis ; perist. simplex, tenue, undique ex- 
pansiusculum, marginibus approximatis, non junctis. -- Operc. 
testaceum, planum, cinereum, 4-spirum, nucleo subcentrali. — 
Diam. maj. 1 1 1 /. 2 , min. 97-2? alt. 9 mill. Ap. 6 mill, longa. 
(Mus. Cuming.) 
Cyclostoma fusculum Pfr. in Proc. Zool. Soc. 1851. Jul. 
— — Chemn. ed. II. N. 336. t. 42. f. 23. 24. 
Cyclostomus fusculus Pfr. Oonsp. 299. p. 63. 
Habitat . . . ? 
26. C. trocltfea Pemsoai. 339 
T. anguste umbilicata, pyramidata, turrita, glabra, albida, 
apice obtusiusculo , sutura impressa; anfr. 5 angulato-convexi, 
superne unicarinati, ultimus tricarinatus , carina 1 superiori, 
1 submediana, 1 circumumbilicari ; apertura obliqua, circularis, 
V, longituainis aequans; perist. acutum, ad finem carinae 
inferioris vix angulatum; umbilicus pervius. — Operc.? — 
Diam. 2, long. 3 mill. (Bens.) 
Cyclostoma trochlea Bens . in Ann. and Mag. 1851. VIII. 
Cyclostomus trochlea Pfr. Consp. N. 300. 
Habitat rare in montibus Nilgherries (Jerdon). 
§.3. 
27. C. J?Iadagascaa*ieaisis CJpay 340 
T. umbilicata, globoso - turbinata , solida, sublaevigata, 
lineis elevatis obsoletis sculpta, opaca, carnea, fasciis inaequa- 
libus violaceis ornata; spira turbinata, acutiuscula; anfr. 6 
convexi, rapide accrescentes , ultimus superne albidus, peri- 
pheria unicarinatus, basi convexus, in umbilico lato, subinfun- 
dibuliformi spiraliter sulcatus ; apertura parum obliqua , sub- 
circularis, intus nitide nigricans; perist. simplex, aurantiacum, 
pallide marginatum , campanulato - expansum , ad anfractum 
penultimum arcuatim emarginatum. — Operc.? — Diam. maj. 
