CYCLOTUS §. 1. 
27 
Cyclotus jamaiccnsis Gray Catal. Cycloph. p. 11. Nr 28. (ex synon.) 
— corrugatus Pfr. Consp. N. 16. 
Habitat in insula Jamaica. 
17. C. jugosus Adams. 43 
T. umbilicata, depressa, solida, confertim striata, sub epi- 
dermide fulvo-fusca alba; spira brevissime elevata, mucronulo 
rubicundo terminata; sutura levis; anfr. 5 depresso - convexi, 
rapide accrescentes , ultimus antice dilatatus, superne irregu- 
lariter et ruditer nodoso - corrugatus , basi oblique corrugato- 
sulcatus, circa umbilicum magnum, infundibuliformem obsolete 
carinatus; apertura perobliqua, transverse ovalis, intus alba; 
perist. continuum, breviter adnatum, marginibus superne angulo 
interdum superstructo junctis, dextro repando, obtuso, colu- 
mellari leviter arcuato, incrassato. — Operc. concavum, 8- 
spiratum, marginibus anfractuum angustorum in laminam altam, 
incurvatam erectis. — Diam. maj. 24, min. 18, alt. 12 mill. 
Ap. c. perist. oblique 12 % mill, longa. (Goll. Nr. 13.) 
Cyclostoma jugosum Adams Contrib. to Conchol. N. 8. p. 143. 
— - Chemn. ed. II. Cycl. N. 358. t. 44 f. 10—13, 
Cyclotus jugosus Pfr. Consp. N. 17. 
Habitat in insula Jamaica. 
18. C. paBlescens Adams. *J* 44 
T. umbilicata, depressa, subtiliter et regulariter striata, 
sub epidermide fusca alba; spira depressa, rufula; sutura mo- 
dice impressa; anfr. fere 5, ultimus irregulariter striatus, su- 
perne planatus, ruditer et irregulariter rugatus, basi sublaeviga- 
tus ; carina umbilicalis nulla ; apertura orbicularis, superne sub- 
effusa et acuminata ; labrum superne vix sinuatum , latere 
dextro modice productum; umbilici diameter circa % aper- 
turae. — Operc. 6 — 7 - spiratum, anfr. concavis , lamella spi- 
rali erecta, reflexa. — Diverg. media 145°; alt. 0,67, lat. max. 
1,15, min. 0,91". (Ad.) 
Cyclostoma pallcsccns Adams Contrib. to Conch. N. 8. p. 143. 
Cyclotus pallcsccns Pfr . Consp. N. 18, 
Habitat in insula Jamaica. 
19 C. varians Adams. 45 
T. umbilicata, depressa, solida, sub epidermide castaneo- 
rufa pallida ; spira vix elevata , vertice rubro mucronulato ; 
