28 
CYCLOTUS §. 1. 
sutura impressa; anfr. 4'/. 2 depresso-convexi, 2 ultimi superne 
valide et oblique angulato-rugosi , ultimus ad suturam depres- 
sus, basi minutius oblique sulcatus, circa umbilicum latum, 
infundibuliformem compresso-angulatus ; apertura parum obli- 
qua, subcircularis, intus rubra ; perist. continuum , brevissime 
adnatum, marginibus angulo simplice junctis, dextro le viter 
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 Adams Contrib. to Conch. N. 8. p. 143. 
— — Chemn. ed. II. Cycl. N. 357. t. 44. f. 7 — 9. 
Cycloius varians Pfr. Consp. N. 19. 
Habitat in insula Jamaica. 
46 20. €7. geminudns Adams»f 
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 s / 4 aperturae. — Operc. concavum, 
lamella spirali vix elevata, sed incrassata et latere externo 
appressa. — Diverg. media 120°; alt. 0,65, lat. max. 1, min. 
0,79". (Ad.) 
Cyclostoma seminudum Adams Contrib. to Conch. N. 8. p. 143. 
Cyclotus seminudus Pfr. Consp. N. 20. 
Habitat in insula Jamaica. 
47 21. C7. sub rugosus Sowerliy. 
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, circa umbilicum obtuse carinatus; 
apertura obliqua, circularis; perist. rectum, continuum, sub- 
incrassatum. — Operc.? — Diam. maj. 16, min. 127 2 > alt. 
7*/ a mill. Ap. 5 mill, longa. (Mus. Cuming.) 
