CYCLOSTOMA. 
Prate IX. 
Species 47. (Mus. Cuming.) 
CycLOsToOMA PARVISPIRUM. Cycl. testd globosd, angus- 
tissime umbilicatd, fuled, purpureo-fusco lineata, et 
infra peripheriam fasciatd ; anfractibus convexis, la- 
vibus, subventricosis, ultimo circa umbilicum subacute 
lirato ; apertura subampla, circulari, labro via reflexo. 
THE SMALL-SPIRED CycLostoMa. Shell globose, very 
narrowly umbilicated, fulvous, lineated and, beneath 
the periphery, banded with purple-brown; whorls 
convex, smooth, slightly ventricose, last whorl rather 
sharply ridged around the umbilicus ; aperture rather 
large, circular, lip scarcely reflected. 
PFEIFFER, Pro. Zool. Soc. 1854, p. 128. 
Hab. ® 
Of a more ventricose growth than C. ligatum, to which 
it is closely allied, with a smaller spire. 
Species 48. (Fig. a, 6, Mus. Cuming.) 
CycLOSTOMA RETICULATUM. Cyel. testd subampliter um- 
bilicatd, turbinatd, rufo-castaned, opaco-albo undique 
conspicue reticulatd ; anfractibus subangustis, rotun- 
datis, lineis spiralibus subobsoletis, striisque longitudi- 
nalibus decussatis ; aperturd circulari, subampld, su- 
perne sinuatd, fauce intense castaneo-rufa, labro ex- 
panso-7eflexo. 
THE RETICULATED CycLostoma. Shell rather largely 
umbilicated, turbinated, reddish-chestnut, conspi- 
cuously reticulated throughout with opaque-white ; 
whorls rather narrow, rounded, decussated with ra- 
ther obsolete spiral lines and longitudinal striz ; 
aperture circular, rather large, sinuated, interior deep 
chestnut-red, lip expandedly reflected. 
Apams and Reeve, Moll. Voy. Samarang, p. 57. pl. 14. 
16 
Hab. Madagascar. 
The very characteristic opaque-white network of this 
species has very much the appearance of being a decidu- 
ous hydrophanous epidermis. 
Species 49. (Fig. a, 6, Mus. Cuming.) 
CycLostoma Macarex. Cyel. testd subampliter umbili- 
catd, depressiuscula, cerulescente-albd aut fulvescente, 
zonis rufo-fuscis numerosis subinterruptis cingulatd ; 
anfractibus superne planulatis, deinde rotundatis, supra 
peripheriam spiraliter validé corrugato-striatis, striis 
subgranatis, striis longitudinalibus subtilissimis ; aper- 
turd oblique circulari, labro expanso, albo. 
Tue Macare Cyciostoma. Shell rather largely umbi- 
licated, somewhat depressed, bluish-white or ful- 
vous, encircled with numerous rather interrupted red- 
brown zones ; whorls flattened round the upper part, 
then rounded, above the periphery strongly wrinkle- 
striated, the strie being grained, longitudinal stric 
very fine; aperture circular, lip expanded, white. 
Petit, Journ. Conch. vol. iv. p. 361. pl. 11. f. 1. 
Hab. Madagascar. 
The specimen here figured, an authentic one in fine 
state, lately acquired by Mr. Cuming, is encircled with 
numerous red-brown zones on a livid bluish-white ground, 
| and the surface of the whorls above the periphery is con- 
spicuously grain-striated. 
Species 50. (Mus. Cuming.) 
CYcLOSTOMA XANTHOCHEILUM. 
bilicata, globoso-conoided, griseo-fulvd, griseo-rufes- 
cente obscure fasciatd ; anfractibus convexis, rudé sub- 
tiliter striatis et malleatis ; apertura subampld, labro 
Cycl. testa anguste um- 
expanso, aurantio. 
THE ORANGE-LIP CycLostoma. Shell narrowly umbili- 
cated, globosely conoid, greyish-fulvous, obscurely 
banded with grey-red; whorls convex, rudely finely 
striated and malleated; aperture rather large, lip 
expanded, orange. 
SoweErsy, Thesaurus Conc. Supp. p. 158. pl. 31a. f. 
294, 295. 
Hab. Madagascar. 
A rather solid red-banded shell, covered with a hard 
grey coating, which, in the last whorl, renders the band 
very obscure. 
Species 51. (Mus. Cuming.) 
CycLostoma PpyrosToMa. Cycl. testa modicé umbilicaté, 
globoso-turbinatd, fulvo-spadiced, zond purpureo-grised 
infra peripheriam cingulatd ; anfractibus rotundatis, 
December, 1861. 
