LEPTOPOMA. 
Pate IV. 
Species 18. (Mus. Cuming.) 
LEPTOPOMA ASPIRANS. 
bilicatd, globoso-conicd, subacuminatd, albidd, fusces- 
cente subobscuré fasciatd, anfractibus declivi-converzis, 
spiraliter exilissime filoso-liratis ; apertura circuluri, 
labro expanso-reflexo. 
THE AsprrRING Lepropoma. Shell minutely deeply um- 
bilicated, globosely conical, rather acuminated, whi- 
tish, rather obscurely banded with brown, whorls 
slopingly convex, spirally very finely thread-ridged ; 
aperture circular, lip expandedly reflected. 
Benson, Ann. and Mag. Nat. Hist. 1856, vol. xvii. p. 229. 
Hab. Yenasserim Valley, India; Theobald. 
This species appears scarcely to differ from the smaller 
and more acuminated form of Z. witreum, which is also 
found in India. 
Species 19. (Mus. Cuming.) 
LeeropomMa MENADENSE. 
vato-umbilicatd, globoso-conicd, subacuminatd, pellu- 
cido-albd, anfractibus usque ad peripheriam declivi- 
convenis, filoso-liratis, liris subprominentibus, distanti- 
bus, opacis ; apertura circulari, labro late plano-ex- 
panso. 
Tue Menapo LEpropoma. 
vately umbilicated, globosely conical, somewhat acu- 
minated, transparent-white, whorls slopingly convex 
and thread-ridged as far as the periphery, ridges ra- 
ther prominent, distant, opaque; aperture circular, 
lip broadly flatly expanded. 
Prerrrer, MS. in Mus. Cuming. 
Hab. Island of Menado, Indian Archipelago; Wallace. 
An extremely delicate transparent-white shell, encircled 
above the periphery with rather prominent distant thread- 
like ridges. 
Shell narrowly rather exca- 
Species 20. (Mus. Cuming.) 
Lepropoma pecipiens. Lept. lestd subangusté umbili- 
catd, globoso-conicd, livido-fuscescente, anfractibus de- 
clivi-convexis, undique spiraliter filoso-liratis, livis sub- 
tilibus subdistantibus ; apertura circulari, labro ex- 
panso-reflexo. 
Tur DECEPTIVE Lupropoma. Shell rather narrowly 
umbilicated, globosely conical, livid brown, whorls 
Lept. testa minute profunde um- 
Lept. testé anguste subexca- | 
slopingly convex, spirally thread-ridged throughout, 
ridges fine, rather distant; aperture circular, lip ex- 
pandedly reflected. 
Preirrer, MS. in Mus. Cuming. 
Hab. Island of Batchian, Eastern Archipelago ; Wallace. 
Mr. Cuming possesses specimens of this species lately 
received from Mr. Wallace, some of a smooth livid hue, 
others of a browner colour, covered with a fine silky 
fibrous epidermis. 
Species 21. (Mus. Cuming.) 
LepropoMa unpatuMm. Lept. testd perangusté excavato- 
umbilicatd, acute depressée pyramidali-conicd, ad basin 
acutissime angulatd, pellucido-albd, opaco-undati, an- 
JSractibus concavo-declivibus, versus apicem confertin 
tenue filoso-liratis ; aperturaé circulari, labro late 
plano-expanso. 
THE wavepd Lertopoma. Shell very narrowly exca- 
vately umbilicated, sharply depressly pyramidally 
conical, very sharply angled at the base, transpa- 
rent-white, opaque-waved, whorls concavely sloping, 
closely finely thread-ridged towards the apex; aper- 
ture circular, lip broadly flatly expanded. 
Cyclostoma undatum, Metcalfe, Pro. Zool. Soc. 1851, p. 71. 
Leptopoma undatum, Pfeitter. 
Hab. Borneo. 
A shell of solid growth, peculiarly characterized by its 
depressly pyramidal form and sharply angled produced 
periphery. 
Species 22. (Fig. a, 6, Mus. Cuming.) 
Lrepropoma piueus. Lept. testé perangusté umbilicatda, 
pyramidali-conicd, sordide alba, fulvo-fusco pallidé nu- 
beculatd, ad suturam punctatd, punctis distantibus, an- 
fractibus plano-declivibus, parum convewis, ad basin 
angulatis, ad angulum filoso-carinatis, carina opaco- 
alba, in suturam currente; apertura trigono-ovatd, 
labro expanso-reflexo. 
Tue cap Lepropoma. Shell very narrowly umbilicated, 
pyrawidally conical, duil-white, faintly clouded with 
fulvous-brown, with distant spots at the suture, 
whorls flatly sloping, but little convex, angled at the 
base, thread-keeled at the angle, keel opaque-white, 
February, 1862. 
