20 
CYCLOTUS §. 1. 
Habitat in Bolivia, in Brasilia et prope La Guayra. 
Obs. Animal teste d’Orbigny glabrum, roseum; pes elongatus, postice 
acuminatus ; tentacula conica, rubra. 
32 6 . C. sti*nmiiieu@ Reeve. 
T. urabilicata, depressa, subdiscoidea, tenuis, diaphana, 
straminea, oblique confertissime plicato-striata, striis ab umbi- 
lico latiusculo, pervio exorientibus , diagonaliter antrorsum 
assurgentibus ; spira vix elevata, obtuse mucronulata; anfr. 
4'/ 2 convexi, juxta suturam rugulosi, ultimus subdepressus ; 
apertura subcircularis , superne subangulata; perist. rectum, 
subincrassatum, marginibus approximatis, callo tenui angulatim 
junctis. — Operc. ut praeced, — Diam. maj. 25, min. 19, 
alt. 12 mill. Ap. oblique 12 mill, longa, 11 lata. (Coll. Nr. 4.) 
Cyclostoma stramineum Reeve in Proc. Zool. Soc 1843. p 46 . *) 
— — Sow. Thes. p. 93. N. 8. t. 29. f. 211. 212. 
— — Chemn. ed. II. Cyclost. N. 90. p. 94. t. 12. 
f. 6. 7. t. 35 f. 7—9. 
Aperostoma stramineum Pfr . in Zeitschr. 1847. p- 104. 
Cyclotus stramineus Gray Catal. Cycloph. p. 7. N. 6. 
_ _ Pfr . Consp. N. 6. 
Habitat Merida Columbiae occidentalis (Reeve), nec non La 
Guayra (Tams). 
Obs. Conf. persimiles Cyclophorus ponderosus, tcxturatirs et Dysoni . 
33 7. C. translueideis Sowerby. 
T. umbilicata, turbinato-globosa, tenuiuscula, confertim pli- 
catulo-striata, sub epidermide corneo-virente albida, translucida ; 
spira breviter conoidea; anfr. 5 convexi, ultimus ventrosus; 
umbilicus angustus , pervius ; apertura oblique ovalis , intus 
margaritacea ; perist. simplex, rectum, acutum, marginibus an- 
gulatim junctis, columellari subeffuso. — Operc. immersum, 
anfr. 7, extimo multo latiore. — Diam. maj. 23, min. 19, alt. 
15 mill. — Long, apert. 12 mill. (Coll. Nr. 5.) 
*) T. orbiculari, subdepressa, stramineo - lutea , spira versus apicem 
rosacea; usquequaque elegantissime striata, striis, ab umbilico exorientibus, 
diagonaliter collocatis ; apertura fere circulari, superne subsinuata ; peritre- 
mate simplici ; operc. testaceo, albo, multispirato. (Reeve 1. c.) 
