CYCLOSTOMA. 
PiatEe XIX. 
Species 121. (Mus. Cuming.) 
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CycLostoma PYGM#UM. Cyl. testd angusté subprofundé 
umbilicatd, globoso-conicd, fusco-albidd, anfractibus 
rotundatis, subconfertim tenuiliratis ; apertura rotun- 
dala, labro simplici. 
THE PIcMy Cyciosroma. Shell narrowly rather deeply 
umbilicated, globosely conical, brownish-white, whorls 
rounded, rather closely finely ridged; aperture 
rounded, lip simple. 
Sowerby, Thes. Conch. p. 104. pl. 3. f. 253. 
Otopoma pygmea, Gray. 
Hab. New Ireland. 
A small species, magnified in our figure to seven or 
eight times the natural size. 
Species 122. (Fig. a, 6, Mus. Cuming.) 
CycLosToMa cLausuM. Cyel. testé obtecté umbilicatd, 
depressé orbiculari, albidd, interdum rufo unifasciatd, 
anfractibus paucis, angustis, rapide accrescentibus, 
spiraliter tenuiliratis, liris interdum  subobsoletis ; 
apertura oblique rotundatd, labro calloso-reflexo, cal- 
lositate super umbilicum expansd. 
THE cLosED Cycuostoma. Shell with a covered umbi- 
licus, depressly orbicular, whitish, sometimes encircled 
by a single red band, whorls few, narrow, rapidly 
increasing, spirally finely ridged, ridges sometimes 
rather obsolete ; aperture obliquely rounded, lip cal- 
lously reflected, with a callosity expanded over the 
umbilicus. 
SoweErsy, Thes. Conch. p. 128. pl. 31. f. 266, 267. 
Otopoma clausum, Gray. 
Hab. Yemen, Arabia; Powis. 
A rather depressed species, with the umbilicus entirely 
closed by the expansion of a white callosity. 
Species 123. (Mus. Cuming.) 
CycLosroma LrsteRt. Cycl. testa subobtecté umbilicatd, 
globoso-conicd, carneo-albidd, infra peripheriam ob- 
secure fasciatd ; anfractibus declivi-convecis, levibus ; 
apertura oblique rotundatd, labro vix reflexo. 
Lister’s Cyctostoma. Shell with a nearly covered 
umbilicus, globosely conical, flesh-white, obscurely 
banded below the periphery, whorls slopingly con- 
vex, smooth ; aperture obliquely rounded, lip scarcely 
reflected. 
Gray, Ann. Phil. 1821. 
Cyclostoma Philippi, Grateloup. 
Otopoma Listeri, Gray. 
Hab. Mauritius. 
Of very simple character, peculiarly conically globose in 
form. 
Species 124. (Mus. Cuming.) 
CYCLOSTOMA MULTILINEATUM. Cycl. lestd subobtect? 
umbilicatd, globoso-conoided, solidd, cinnamoneo-rnfi, 
spiraliter multilineatd, opaco-albo longitudinaliter in- 
terrupte strigatd, anfractibus convexis, longitudinaliter 
rugato-striatis ; apertura oblique rotundatd, labro 
calloso-reflexo, albo, flewuoso. 
THE MANY-LINED CycLosToMa. 
covered umbilicus, globosely conical, solid, cinmamon- 
Shell with a nearly 
red, spirally many-lined, longitudinally interruptedly 
streaked with opake-white, whorls convex, longitu- 
dinally wrinkle-striated ; aperture obliquely rounded, 
lip callously reflected, white, flexuous. 
Jay, Cat. of Shells, 1859, p. 123. pl. 7. f. 12, 13. 
Cyclostoma flemilabrum, Sowerby. 
Cyclostoma flavilabre, Petit. 
Tropidophora fleailabrum, Gray. 
Otlopoma multilineatum, Pfeiffer. 
Hab. Madagascar ; Petit. 
The spiral lines of this species are formed by the inter- 
ruption of the longitudinal opake-white striz. 
Species 125. (Mus. Cuming.) 
CycLostoma PoLituM. Cycl. testd subangustle umbilicata, 
conico-globosd, crassiusculd, rufo-castaned, albo obscure 
lentiginosd, anfractibus declivi-convewis, levibus, po- 
litis ; apertura rotundatd, labro simplici, subcalloso, 
albo. 
THE POLISHED CycLostomMa. Shell rather narrowly um- 
bilicated, conically globose, rather thick, reddish- 
chestnut, obscurely freckled with white, whorls slo- 
pinely convex, smooth, polished ; aperture rounded, 
lip simple, slightly callous, white. 
April, 1862. 
