CYCLOTUS $.1. 31 
Uyclostoma translucidum Sow. in Proc, Zool, Soc. 1843. p. 29. *) 
— — Som. Thes. N. 46. p. 106. t. 23, f. 4. 
— — Chemn. ed. II. Cycl. N. 4. p. 13. t. 1. f. S—10. 
"perostoma translucidum Pfr. in Zeitschr. f. Malak. 1847. p. 104. 
Cyclotus translucidus Gray Catal. Cycloph. p. 10. Nr. 22. 
— -— Pfr. Consp. N. 7. 
Habitat in. Columbia. 
8. €. asperulus Sowerby. 34 
T. umbilicata, orbiculato-subdepressa, tenuiuscula, punctis 
impressis, confertis ubique subgranulata, vix diaphana, sub 
epidermide lutescente albida; spira parum elevata, apice obtu- 
smscula; anfr. 4 celeriter accrescentes, convexi, ultimus obso- 
lete angulatus, antice dilatatus, circa umbilicum latiusculum 
non compressus; apertura subobliqua, subcircularis, superne 
angulata, intus nitida; perist. simplex, continuum, rectum, mar- 
gine sinistro medio subincrassato, superne appresso. — Operc. 
6- -spiratum ,. margine anfractuum vix prominente. — Diam. 
maj. 18, min. 14, alt. 10 mill. Ap. 9 mill longa, 8 lata. 
(Coll. Nr. 6.) 
Cyclostoma rugulosum Som. in Proc. Zool, Soc. 1843. p. 29. **) Nec Pfr. 
c asperulum Som. 'Thes N. 2. p. 91. t. 23, f, 3. 
E c Chemn. ed. YI. Cyclost. N..158. p. 148. t. 20. 
iis 35 dle 
"A perostoma asperulum Pfr. in. Zeitschr. f, Mal. 1847. p. 104, 
Cyclotus asperulus Gray Catal. Cycloph. p. 10. N. 24. 
— — Pfr. Consp. N. 8. 
Habitat in insula Jamaica. 
9. €. Popayanus Lena. 35 
T. umbilicata, turbinato-depressa, tenuiuscula, irregulariter 
rugoso-striata, olivaceo-fulvida, strigis saturatioribus radiata, 
albido-unicingulata; spira depresso-conoidea, apice subpapil- 
*) 'T. subglobosa , Ras alba, epidermide cornea induta; spira 
breviuscula, obtusa ; anfr, 4 rotundatis, prope suturam elevatiusculis., stria- 
tis, superne rugulosis; apertura subcirculari, superne subacuminata ; iid 
mate acuto; umbilico mediocri; operc. testaceo, tenuiusculo , anfr. stria- 
tis (Sow. l. c.) 
9*) 'T. orbiculato-subdepressa, tenui, translucida; anfr. 4— B rotundatis, 
rugulosis ; sutura distincta; apertura rotundata, superne acuminatiuscula ; 
peritremate tenui, margine acutiusculo; umbilico magno. (Sow. l. c.) 
