CYCLOSTOMA. 
Prats II. 
Species 6. (Fig. a, 6, Mus. Cuming.) 
CYcLOSTOMA PULCHELLUM. Cel. testd globoso-turbinatd, 
tenuiculd, lutescente, carneo-fusco fasciatim maculata, 
spird acute conicd, anfractibus spiraliter confertissime 
lineari-impressis, medio remote bicarinatis, circa um- 
bilicum densé carino-liratis; apertura parviusculd, 
subcirculari, fauce fuscescente, labro plano-expanso, 
sanguineo. 
THE preTTy CycLostoma. Shell globosely turbivated, 
rather thin, yellowish, spotted in a banded manner 
with flesh-brown, spire sharply conical, whorls spi- 
rally very closely linearly impressed, distantly two- 
keeled round the middle, densely keel-ridged around 
the umbilicus ; aperture rather small, nearly circular, 
interior brownish, lip flatly expanded, blood-stained. 
SowERrBy, Thesaurus Conch. p. 129. pl. 31. f. 263, 264. 
Tropidophora pulchella, Gray. 
Cyclostoma Hanleyi, Pfeiffer. 
Tropidophora Hanleyi, Gray. 
Hab. ? 
Elegantly characterized by a painting of necklace bands 
of square flesh-brown spots. 
Species 7. (Fig. a, 6, Mus. Cuming.) 
CycLostoma Barctayanum. Testé parum umbilicatd, 
conico-turbinatd, solidiusculd, purpureo-fuscd, anfrac- 
tibus declivi-tumidis, multicarinatis, carinis subdistan- 
tibus, ultimo circa umbilicum angulato-excavato et ca- 
rinato ; apertura parviusculd, labro subcalloso, albo, 
parum reflexo. 
Barcuiay’s CycLostoma. Shell but little umbilicated, 
conically turbinated, rather solid, purple brown, 
whorls slopingly tumid, many-keeled, keels rather 
distant, last whorl angularly excavated and keeled 
around the umbilicus; aperture rather small, lip 
somewhat callous, but little reflected. 
PreEIFFER, Pro. Zool. Soc. 1852, p. 158. 
Hab. Mauritius; Sir D. Barclay. 
This and C. Michaudi represent a very distinct form of 
the genus, in which the whorls are more slopingly tumid, 
the last being peculiarly excavated around the umbilicus. 
Species 8. (Fig. a, 6, Mus. Cuming.) 
Cyctostoma Brtarrt. Cycl. testd parum umbilicata, 
globoso-turbinatd, violaceo-albidd, purpureo undique 
conspicué fasciatd, spird elevatd, anfractibus conveais, 
obsolete lineari-impressis ; apertura oblique cireulari, 
labro anticé dilatato, pallido, posticé tenué reflexo, 
roseo, super umbilicum laté appresso. 
Bexarr’s Cycrostoma. Shell but little umbilicated, 
globosely turbinated, whitish, conspicuously banded 
with violet-purple, spire elevated, whorls convex, obso- 
letely linearly impressed; aperture obliquely circular, 
lip anteriorly dilated, pale, posteriorly thinly reflected, 
rose, broadly appressed over the umbilicus. 
Perit, Journ. Conch. 1853, p. 360. pl. 11. f. 2. 
Hab. Madagascar ; Belair. ° 
The lip of this species is peculiar; while in front it is 
dilated and pale, next the umbilicus it is rose-tinted, 
thinly reflected, then broadly appressed. 
Species 9. (Fig. a, 6, Mus. Cuming.) 
CycLostoma BotvinI. 
globoso-turbinatd, cesid, purpureo-fusco lineata et fas- 
ciatd, spird acuté conicd, anfractibus conveais, decus- 
Cycl. testé obtecté umbilicaté, 
satim impresso-striatis, ultimo ad peripheriam obsolete 
unicarinato, circa umbilicum lirato ; aperturd circu- 
lari, fauce atro-fuscd, labro anticé late dilatato, pos- 
tice tenuée reflexo, super umbilicum laté calloso-ap- 
presso. 
Borvin’s CycLostoma. Shell with the umbilicus covered, 
globosely turbinated, grey, lineated and banded with 
purple-brown, spire sharply conical, whorls convex, 
decussately impressly striated, last whorl obsoletely 
keeled at the periphery, ridged around the umbilicus; 
aperture circular, interior black-brown, lip broadly 
dilated in front, posteriorly thinly reflected, broadly 
callously appressed over the umbilicus. 
| Hab. Madagascar. 
The last whorl of this species has a well-defined, though 
nearly obsolete keel, and there is a faint indication of a 
second keel. 
Species 10. (Fig. a, 6, Mus. Cuming.) 
CycLtostoma Micnaupt. Cycl. testd obtecté wmbilicata, 
November, 1861. 
