CYCLOSTOMA. 
PiatE XX. 
Species 129. (Mus. Cuming. 
P $s 
CycLostoma Currryr. Cycl. testé modicé umbilicata, 
globoso-turbinatd, fulvo-albidd, interdum lineis rufis 
obsolete cinctd, anfractibus rotundatis, confertissime 
decussatim scabris, suturd profundd ; aperturd circu- 
lari, labro laté imbricato-fimbriato. 
Currry’s Cyctostoma. Shell moderately umbilicated, 
elobosely turbinated, fulvous-white, sometimes obso- 
letely encircled with red lines, whorls rounded, very 
closely decussately scabrous, suture deep; aperture 
circular, lip broadly imbricately frilled. 
Apams, Contr. to Conch. No. 1. p. 1, and No. 6. p. 89. 
Choanopoma Chittyi, Pfeiffer. 
Hab. Jamaica. 
Very closely decussately scabrous, sometimes encircled 
with faint red lines. 
Species 130. (Mus. Cuming.) 
CycLostoma mite. Cycl. testé imodicé umbilicatd, glo- 
boso-turbinatd, subabbreviatd, fulvescente-albd, semi- 
pellucidd, anfractibus subangustis, rotundatis, iris | 
membranaceis densissimé scabroso-decussatis ; apertura 
circulari, parvd, labro modicé imbricato-fimbriato. 
THE RIPE CycLosToma. 
globosely turbinated, rather short, fulvous-white, 
semitransparent, whorls rather narrow, rounded, very 
densely scabrously decussated with membranaceous 
ridges; aperture circular, small, ip moderately im- 
bricately frilled. 
Prerrrer, Pro. Zool. Soc. 1852, p. 63. 
Choanopoma mite, Pfeiffer. 
Hab. Jamaica. 
Of a more shortly turbinated form than the preceding 
species, with a smaller and more narrowly-frilled aperture. 
Species 131. (Mus. Cuming.) 
CYcLOSTOMA SPINULOSUM. Cycl. testd modicé umbilicatd, 
globoso-turbinatd, sordidé albdé, fusco irregulariter | 
strigaté et fasciatd, anfractibus rotundatis, densissime | 
scabré imbricato-clathratis ; apertura circulart, parva, | 
labro modicé imbricato-fimbriato. 
THE FINELY-SPINED CycLostoma. Shell moderately um- 
bilicated, globosely turbinated, dull-white, irregularly 
Shell moderately umbilicated, | 
| CYCLOSTOMA FIMBRIATULUM. 
streaked and banded with brown, whorls rounded, 
very densely scabrously imbricately latticed ; aperture 
circular, small, lip moderately imbricately frilled. 
Apams, Contr. to Conch. No. 1. p. 1. 
Choanopoma spinulosum, Pfeiffer. 
Hab. Jamaica. 
The fine decussating ridges are more laminated in this 
species, and have a somewhat spinulose character at the 
point of crossing. 
Species 132. (Fig. a, 6, Mus. Cuming.) 
Cychostoma PuLcHRUM. Cycl. testd subampliter exca- 
vato-umbilicatd, globoso-turbinatd, ferrugineo-fulvd, 
Suscescente obscuré maculatd, anfractibus rotundatis, 
spiraliter undique filoso-carinatis, longitudinaliter con- 
fertissimé scabroso-striatis ; apertura circulari, labro 
latissime imbricato-fimbriato. 
THE BEAUTIFUL CycLostoma. Shell rather largely ex- 
cavately umbilicated, globosely turbinated, rusty-ful- 
vous, obscurely spotted with light-brown, whorls 
rounded, spirally thread-keeled throughout, longitu- 
dinally very closely scabrously striated ; aperture cir- 
cular, lip very broadly imbricately frilled. 
Turbo pulcher, Wood, Index Test. Supp. p. 36. pl. 6. f. 4. 
Cyclostoma pulchrum, Gray. 
Choanopoma pulchrum, Pfeiffer. 
Hab. Jamaica. 
This very beautiful and well-known species is the type 
of Dr. Pfeiffer’s genus Choanopoma, the species of which 
are grouped in this and the two succeeding plates. They 
are all natives of the West Indies, chiefly Jamaica and 
Cuba. 
Species 133. (Fig. a, 6, Mus. Cuming.) 
Cycl. testé subampliter 
umbilicatd, globoso-turbinatd, depressiusculd, semipel- 
lucido-albd, anfractibus subangustis, rotundatis, spira- 
liter confertim carinato-liratis, striis longitudinalibus 
luminato-scabrosis, densissimé decussatis ; apertura cir- 
culari, labro late imbricato-fimbriato. 
THE DELICATELY-FRILLED CycLostoma. Shell rather 
largely umbilicated, globosely turbinated, somewhat 
depressed, semitransparent-white, whorls rather nar- 
row, rounded, spirally closely keel-ridged, very densely 
April, 1862. 
