98 CYCLOTUS &. 1. 
sutura impressa; anfr. 4!/, depresso-convexi, 2 ultimi superne 
valide et oblique angulato-rugosi, ultimus ad suturam depres- 
sus, basi minutius oblique suleatus, cirea umbilicum latum, 
infundibuliformem compresso-angulatus; apertura parum obli- 
qua, subcircularis, intus rubra; perist. continuum , brevissime 
adnatum, marginibus angulo simplice junctis, dextro leviter 
arcuato, acuto, sinistro perarcuato, incrassato. — Operc. vix 
concavum, marginibus anfractuum (circa 8) angustissimorum 
elevato-expansis, fere planum continuum formantibus. — Diam. 
maj. 24, -min. 20, alt. 11 mill. Ap. 12 mill. longa. (Coll. 
Nr. 14.) 
Cyclostoma varians dams Contrib. to Conch. N, 8. p. 143. 
— — X Chemn. ed. IL. Cycl. N. 357. t. 44. f.. 7—9. 
Cuclotus varians Pfr. Consp, N. 19. 
Habitat in. insula Jamaica. 
46 20. €. seminudus Adams. 1 
T. umbilicata, turbinata, subtiliter striata, rubenti-albida, 
epidermide brunnea, plerumque fasciatim interrupta induta; 
spira bene elevata; anfr. fere 5, penultimus foveato- rugosus, 
ultimus superne subdepressus, irregulariter rugatus, basi juxta 
carinam umbilicalem distinctam foveatus, caeterum laevigatus; 
apertura orbicularis, superne effusa et acuminata; labrum 
crassum, superne subsinuatum, latere dextro productum; um- 
bilici diameter circa ?/, aperturae. — Opere. concavum, 
lamella spirali vix elevata, sed incrassata et latere externo 
appressa. — Diverg. media 1209; alt. 0,65, lat. max. l, mim. 
0,797 (Ad.) 
Cyclostoma seminudum Adams || Contrib. to Conch, N. 8. p. 143. 
Cyclotus seminudus Pfr. Consp. N. 20. 
Habitat in insula Jamaica. 
41 21. €. subrugosus Sowerby. 
T. late umbilicata, depressa, solida, oblique malleato-ru- 
gosula, alba; spira vix elevata, papillata; anfr. 4'/, convexius- 
culi, ultimus  peripheria obsolete angulatus, antice solutus, 
deflexus, dorso angulatus, cirea umbilicum obtuse carinatus; 
apertura obliqua, circularis; perist. rectum, continuum, sub- 
incrassatum. — Operc.? — Diam. maj. 16, min. 12'/, alt. 
('/, mill. Ap. 5 mill. longa. (Mus. Cuming.) 
