CYCLOSTOMA. 
Pratt X. 
Species 55. (Mus. Cuming.) 
CycLostoMa PULCHRUM. Cyel. testd angusté umbilicatd, 
turbinald, fulvo-spadiced, fusco-strigata et articulate 
punctatd, versus apicem rubella ; anfractibus rotun- 
datis, inequaliter multicarinatis, carinis subscabrosis ; 
apertura circulari, labro tenue, parum expanso. 
THE BEAUTIFUL CycLostoma. Shell narrowly umbili- 
cated, turbinated, fulvous-rust, streaked and articu- 
lately dotted with brown, reddish towards the apex ; 
whorls rounded, unequally many-keeled, keels rather 
scabrous ; aperture circular, lip thin, but little re- 
flected. : 
Gray, in Griff. Anim. King. pl. 28. f. 3. 
Cyclostoma ortix, Valenciennes. 
Cyclostoma multicarinatum, Jay. 
Cyclostoma Arthurii, Grateloup. 
Hab. Seychelle Islands. 
Distinguished a by characteristic articulated pattern 
- of colouring on the keels. 
Fig. 56. (Fig. a, 6, Mus. Cuming.) 
The interesting specimen here figured proves to be a 
variety of Cyclophorus Amboinensis. 
Species 57. (Mus. Cuming.) 
CYCLOSTOMA SINUATUM. Cyel. testd subangusté umbili- 
catd, globoso-turbinatd, solidiusculd, alba ; anfracti- 
bus rotundatis, superne et inferné quinquecarinatis, 
medio levibus ; apertura circulari, labro reflexo, su- 
perne late sinuato. 
THE SINUATED CycLostoma. Shell narrowly unbilicated, 
globosely turbinated, rather solid, white; whorls 
rounded, five-keeled above and below, smooth in the 
middle; aperture circular, lip reflected, broadly 
sinuated at the upper part. 
PFEIFFER, Pro. Zool. Soc. 1855, p. 105. 
Hab. Madagascar ? 
Curiously keeled round the upper and lower parts of 
the whorls, whilst the middle is smooth. 
Species 58. (Fig. a, 6, Mus. Cuming.) 
CycLostoma zoNULATUM. Cyel. testd anguste subobtecte 
umbilicatd, subpyramidali-turbinatd, cinered, versus 
basin castuneo lineata et fasciatd ; anfractibus spira- 
liter striatis et acute multicarinatis, carinis albidis, 
anfractu ultimo multo majore; apertura cireulari, 
labro laté plano-expanso, albo. 
THE FINELY-ZONED CycLostoma. Shell with a narrow 
partially covered umbilicus, somewhat pyramidally 
turbinated, ash-coloured, lineated and banded to- 
wards the base with chestuut ; whorls spirally striated 
and sharply many-keeled, keels whitish, last whorl 
much the larger; aperture circular, hp broadly 
flatly expanded, white. 
Fiérussac, MS., Sowerby, Thes. Conch. Supp. p. 159. pl. 
31a. f. 296, 297. 
2 
Hab. 
The keels of this species are like white threads, and 
the linear painting is wholly below the periphery. 
Species 59. (Mus. Cuming.) 
CycLostoMa IcTERICUM. Cycl. testa anguste obsoleté um- 
bilicatd, subpyramidali-turbinatd, sordidé fulvd ; an- 
JSractibus superné decliviusculis, deinde convewis, spi- 
raliter undique reqgulariter liratis ; apertura circulari, 
labro late reflexo. 
THE JAUNDICED CycLostoma. Shell with 
covered umbilicus, somewhat pyramidally turbinated, 
dull-yellow ; whorls rather sloping round the upper 
part, then convex, spirally regularly ridged through- 
out; aperture circular, lip broadly reflected. 
SoweErsy, Thes. Conch. p. 131. pl. 31. f. 268, 269. 
Cyclophorus ictericus, Pfeiffer. 
2 
a narrow 
Hab. 
The dull-yellow colouring arises mainly from the bad 
state of the specimens. 
Species 60. (Fig. a, 6, Mus. Cuming.) 
CycLostoMa zZoNatuM. Cycl. testé angustissimé subob- 
tecte umbilicatd, subpyramidali-turbinatd, alba, nigri- 
cante-fusco nunc unifasciatd nune multifasciatd ; an- 
JSractibus declivi-rotundatis, levibus vel striis subtilis- 
December, 1861. 
