CYCLOSTOMA. 
Puate XV. 
Species 92. (Mus. Cuming.) 
CycLostoMa YALLAHENSE. Cycl. testd angusté umbili- 
cata, ovato-turrita, cerulescente-fuscd, spiraliter rufo- 
punctaté ; anfractibus rotundatis, longitudinaliter con- 
Sertissimé costulato-striatis, striis infra suturas pli- 
catis; apertura circulari, labro subincrassato, vir 
reflexo. 
Tae Yattan Cycnostoma. Shell narrowly umbilicated, 
ovately turreted, blue-brown, spirally dotted with red ; 
whorls rounded, longitudinally very closely rib- 
striated, strize puckered into folds beneath the su- 
tures ; aperture circular, lip rather thickened, scarcely 
reflected. 
Apams, Contrib. to Conch. No. 9. p. 156. 
Hab. Yallah’s Hill, Jamaica. 
A rather slender finely dotted form of this very preva- 
lent Jamaica type. 
Species 93. (Mus. Cuming.) 
CycLosftoMa CasTANEUM. Cycl. testé modicé umbilicaté, 
globoso-conicd, tenuiculd, nitidé castaned ; anfractibus 
subangulato-convexis, undique spiraliter liratis, liris 
obtusis, subdistantibus ; apertura circulari, labro vie | 
reflexo. 
THE CHESTNUT CycLosTtoMA. Shell moderately umbili- 
cated, globosely conical, rather thin, shining-chest- 
nut; whorls somewhat angularly convex, spirally 
ridged throughout, ridges obtuse, rather distant ; 
aperture circular, lip scarcely reflected. 
PFEIFFER, Pro. Zool. Soc. 1851, p. 251. 
Hab. Madagascar. 
A light sharply-spired shell, of a rich shining chestnut- 
colour both within and without. 
Species 94. (Mus. Cuming.) 
CycLosToMA SUBLIRaTUM. Cycl. testd anguste umbili- 
cata, globoso-conicd, pallidé rubello-corned ; anfracti- 
bus rotundatis, spiraliter undique confertim tenui- 
liratis ; aperturdé circulari, labro simplici, vix reflexo. 
THE FAINTLY-RIDGED CycLostoma. Shell narrowly um- | 
bilicated, globosely conical, pale reddish-horny ; 
whorls rounded, spirally closely fuintly ridged through 
out; aperture circular, lip simple, slightly reflected. 
Preirrer, Pro. Zool. Soc. 1852, p. 65. 
Hab, ——~-? 
The habitat of this species is not known, but it appears 
to be a Madagascar form. 
Species 95. (Mus. Cuming.) 
CYCLOSTOMA TECTILARRE. Cycl. testd angustissimé um- 
bilicatd, ovato-turritd, sericeo-fuscescente, spiraliter- 
rufo-punctatd ; anfractibus rotundatis, lougitudinaliter 
confertim tenuissimé lirato-striatis ; aperturd rotun 
dati, labro simplici. 
THE COVERED-LIP CycLostoma. Shell very narrowly 
umbilicated, ovately turreted, silky pale-brown, 
spirally dotted with red ; whorls rounded, longitudi- 
nally closely very finely ridge-striated; aperture 
rounded, lip simple. 
Apams, Contrib. to Conch. No. 1. p. 10. 
Hab. Jamaica. 
The longitudinal laminar striz are very fine, and present 
only a very faint indication of the puckering beneath the 
suture common to this type. 
Fig. 96. (Mus. Cuming.) 
One of the numerous varieties of the European C. swd- 
catum, described and figured at Plate XI. Sp. 66, of which 
at least ten species have been made by different authors. 
In the present variety the spiral ridges are broad, separated 
from each other by deep-cut linear grooves. 
Species 97. (Mus. Cuming.) 
Cyctostoma CaroLinensis. Cyel. testd angust? subpro- 
funde umbilicatd, pyramidali-conicd, cerulescente-alha, 
nitiduld ; anfractibus rotundatis, superné leviter et 
confertim spiraliter liratis, deinde levibus ; operturd 
subcirculari, labro simplici, viv reflexo. 
Tue Carotine Cyctostoma. Shell narrowly rather 
deeply umbilicated, pyramidally conical, bluish- 
December, 1861. 
