30 CYCLOTUS 5$. 1. 2. 
elevata; sutura bene impressa; anfr. 5, ultimus fere undique 
minute rugatus, subtus planulatus, peripheriam subangulatam 
reddens; apertura suborbicularis, effusa, acuminata, superne 
valde producta; labrum crassum; umbilici diameter '/, aper- 
turae. — Operc.? — Diverg. media 1309; alt. 0,45, lat. max. 
0,7, min. 0,58". (Ad.) 
Cyclostoma perpallidum .4dams Contrib. to Conch. N. 9. p. 157. Conf. 
N. 8. p. 148. 
Cyclotus perpallidus Pfr. Consp. N. 24. 
Habitat in insula Jamaica. 
Obs. Nonne C. asperulo nimis affinis? 
25. €. Fortumnei Pfr. 
T. umbilicata, turbinato-depressa, solidula, subtiliter stria- 
tula, fulva, castaneo minute marmorata et infra medium uni- 
fasciata; spira brevissime turbinata, vertice subtili; sutura 
simplex; anfr. 4'/, convexi, ultimus teres, non descendens; 
umbilicus conicus, profundus, '/, diametri subaequans; aper- 
tura fere verticalis, subcircularis, superne leviter angulata; 
perist. simplex, rectum, anfractui penultimo breviter adnatum. 
— Operculum normale, margine anfractuum filoso-elevato. — 
Diam. maj. 12'4, min. 10, alt. 7 mill. Ap. 6'/, mill. longa. 
(Mus. Cuming.) 
Cyclostoma Fortunei (Cyclotus) Pfr. in Proc. Zool. Soc. 1852. 
— — Chemn. ed. II. Cycl. N. 404. t. 49. f. 3—5. 
Habitat Shanghi Chinae (Fortune). 
$. 2. 
26. €.? volvuloides Sowerby. 
T. umbilicata, turbinato-depressa, solida, superne et basi 
confertim spiraliter lirata, nitida, carneo et fusco-violaceo varie- 
gata; spira turbinata, obtusiuscula; anfr. 5 perconvexi, ultimus 
latus, peripheria rotundatus, sublaevigatus; umbilicus latus, 
profundus; apertura vix obliqua, subcircularis, intus fulvida; 
perist. s&mplex, breviter interruptum, album, margine supero 
repando, expanso, dextro brevi, columellari perdilatato, patente. 
— Operc.? -- Diam. maj. 25, min. 19, alt. 14 mill. (Mus. 
Cuming.) 
