39 CYCLOTUS $. 2. 
vix et fere inconspicue angulata; perist. simplex, rectum, albi- 
dum, anfractui penultimo breviter adnatum. — Opere. testa- 
ceum, anfr. longitudinaliter valide striatis, margine anfractuum 
filoso-elevato. — Diam. maj. 13, min. 11, alt. 12 mill.; apert. 
6 mill. longa, 6 lata.* (C.) 
Cyclotus Gassiesianus Crosse in Journ. Conch. XV. 1867. p. 206. t. 6. f. 5. 
Habitat 'Tay-Ninh Cochinchinae gallicae. 
26. C. Amboinensis (Cyclostoma) Pfr. 
»Testa turbinato-depressa, anguste at pervie umbilicata, 
laevigata, e castaneo, flavescente et interdum albo variegata, 
infra peripheriam saepe unifasciata; spira convexo -conoidea, 
obtusula; anfr. 4!/, — D, convexi, sutura mediocri discreti 
ultimus depresse teres, paulum descendens; apertura parum 
obliqua, circularis; peristoma crassum, vix expansiusculum, 
continuum, breviter anfractui penultimo adnatum. Operculum 
caleareum, multispirum, planum, spiris oblique raro - striatis, 
suturis imbricatis. — Diam. maj. 12, min. 9!/, alt. 8—9; 
apert. lat. —long. 6 mill — Var. elatior, anfr. ultimo suban- 
gulato, subtus planato. Diam. maj. 14, min. 10!/, alt. 11; 
apert. 6!/, mill.* (v. M. — Coll. Nr. 16.) 
Cyclostoma, Amboinense Pfr. 1852. 
? Cyclophorus Amboinensis Pfr. Mon. Pneum. p. 82. n. 49; Il. p. 59; 
IBS 
— marmoratus Fér., Pfr. Pneum. p. 68; IL. p. 50; III. p. 65? 
( Martens. ) 
Cyclotus. Amboinensis Mart. Ostas. Zool. II. p. 121. t. 9. f. 4. 5. Conf. 
Malak. Bl. XX. 1872. p. 159. 
Habitat in insulis Amboina, Ceram, Buru. 
* 
97. suecinetus Martens. III. 17. — AMartens in Monatsber. Berl. Ak. 
1864. p. 117; Ostas. Zool. II. p. 122. t. 2. f. 6. 7. — Ins. Timor. 
28. C. Sieversi Pfr. 
T. umbilicata, turbiniformis, striatula, castanea, epider- 
mide nitidula, flavescenti-grisea obducta; spira conoidea, vertice 
subtili, subpapillato; anfr. 5!/; perconvexi, ultimus basi planior; 
umbilicus angustus, pervius; apertura obliqua, subcircularis; 
perist. simplex, rectum, anfraectui contiguo brevissime adna- 
tum. — Operc. solidum, arctispirum, intus subexcavatum, 
nitidum, extus albidum, anfractibus vix conspicui. — Diam. 
maj. 7?/,, min. 7, alt. 61!/; mill. (Coll. Nr. 11.) 
