116 
CYCLOSTOMUS §. 2. 3. 
nuum, breviter adnatum, vix expansiusculum. — Operc. ? 
Long. 7, diam. 5 mill. Ap. fere 4 mill, longa (Mus. Cuming.) 
Cyclostoma gradatum (Cyclostomus?) Pfr. in Proc. Zool. Soc. 1854. 
p. 303. 
Habitat . . . ? 
29. C. trociftlea Hesigoat- 
T. perforata, oblongo-pyramidata , solidula , alba, sublae- 
vigata; spira elongato-conica, apice acutiuscula ; anfr. S 1 /^ su b- 
angulato-convexi , superne unicar in ati , ultimus tricarinatus : 
carina 1 superiore, 1 mediana, tertia umbilicum angustum, 
subpervium cingente \ apertura parum obliqua, circularis, 2 /y 
longitudinis aequans; perist. simplex, rectum, fere continuum. 
— Operc.? — Long. 3, diam. 2 mill. (Mus. Benson.) 
Cyclostoma trochlea Bens, in Ann. and Mag. 2d. ser. VIII. p. 189. 
__ Chemn. ed. nov. p. 380. t. 49. f. 29. 30. 
Cyclostomus trochlea Pfr. Mon. Pneum. p. 205. n. 26. 
— Gray Cat. Phan. p. 144. 
_ ___ (Tropidophora) H. et A. Adams Gen. rec. Moll. 
II. p. 292. 
Habitat in montibus Neilgberries Indiae. 
S- 3. 
30. Hada^ascsMTaerasas C4i*ay. (Ch. ed. nov. p. 
290. t. 39. f. 1. 2. — Gray Phan. p. 144. — Tro- 
pidophora Ad. Gen. p. 292. — CyclosL Duisabonis 
Grat) Mon. p. 205. 
31. C. Boivlrai Pfr. 
T. obtecte perforata, globoso-turbinata, tenuiuscula, spi- 
raliter obsolete lirata, griseo et fulvido variegata, spadipeo 
multifasciata ; spira turbinata; anfr. fere 6 turgidi, celeriter 
accrescentes, ultimus ventrosus, peripheria carina 1 compressa, 
albida munitus, circa umbilicum confertim spiraliter liratus; 
apertura subverticalis, oblongo-rotundata, intus nigricanti-san- 
guinea ; perist. tenue , ad anfr. contiguum subemarginatum, 
superne productum , margine dextro et basali late patentibus, 
columellari angusto , supra umbilicum dilatato , adnato. 
Operc.? — Diam. maj. 29, min. 23, alt. 25 mill. Ap. intus 
15 mill, longa, 13 lata. (Mus. Cuming.) 
Cyclostoma Boivini (Cyclostomus) Pfr. in Proc. Zool. Soc. 1856. p.338. 
