120 
CYCLOSTOMUS §. 6. 
50. C.? siiiuatm Pfr. 
T. umbilicata , globoso-turbinata , solida , laevigata, vix 
nitidula, alba; spira turbinata, acutiuscula; anfr. 5 i l 2 convex!, 
prope suturam liris 5 filaribus cincti, ultimus rotundatus, circa 
umbilicum angustum, pervium liris paulo confertioribus scul- 
ptus; apertura vix obliqua, subcircularis; perist. breviter ex- 
pan sum , marginibus callo subexciso junctis, dextro superne 
repando, fere sinuoso, columellari non latiore. Operc. ? — 
Diam. maj. 22, min. 18, alt. 17 mill. Ap. intus 10 mill, 
longa, 9 lata. (Mus. Cuming.) 
Cyclostoma sinuatum (Cyclostomus?) Pfr. in Proc. Zool. Soc. 1855. 
p. 105. 
Habitat in insula Madagascar? 
* 
51? strintulus Pfr. (Proc. 1852. p. 147.— Ch. ed. 
nov. p. 375. t. 49. f. 1. 2. — Gray Phan. p. 150. 
— Ad. Gen. p. 291 et Cyclophorus striatulus Ad. 
Gen. p. 280.) Mon. p. 214. 
52. fsalvescews Sow. (Coll. 218. — Gray Phan. p. 
150. — Ad. Gen. p. 291.) - - 215. 
53? ieterietas S©w. ( Cyclophorus ? ictericus Pfr. 
Pneura. n. 47. — Gray Phan. p. 56. — Ad. Gen. 
p. 280.) • - -81. 
54. C- microcliainia Pfp. 
T. umbilicata , depresse turbinato - globosa , tenuiuscula, 
spiraliter confertim lirata, striis incrementi vix decussatula, 
albido-lutescens ; spira turbinata, obtusula; anfr. 4 1 / 2 convexi, 
ultimus teres , infra peripheriam fascia latiuscula castanea or- 
natus ; umbilicus conicus, 1 / b diametri fere occupans; apertura 
parum obliqua, parvula, fere circularis; perist. tenue, vix ex- 
pansiusculum, marginibus fere contiguis, ad anfr. penultimum 
callo brevi junctis. — Operc.? — Diam. maj. 18, min. 15 1 / 2 , 
alt. 12 mill. Ap. 10 mill, longa, 8 lata. (Mus. Cuming.) 
Cyclostoma microchasma (Cyclostomus) Pfr. in Proc. Zool. Soc. 1856. 
p. 338. 
Habitat in insula Madagascar. 
* 
55. Insularly Pfr. (Coll. 219. — Proc. 1852. p. 64. 
— Ch. ed. nov. p. 351. t. 45. f. 5. 6. — Gray 
Phan. p. 151. — Ad. Gen. p. 291.) Mon. p. 215. 
56. C. garcodes Pfr. 
T. umbilicata, turbinata, solidula, liris obtusis subconfertis 
striisque illas transgredientibus creberrimis sculpta, carnea, 
