LEPTOPOMA 6$. 1. 2. 105 
conica, acuta; anfr. 5 convexi, ultümus ventrosus; apertura 
obliqua, subcireularis;  perist. angulatim  reflexum, — patens, 
aurantiacum, marginibus approximatis, callo tenui junctis, colu- 
mellari subangulatim dilatato. — Opere. normale. — Diam. 
maj. 10, min. 8, alt. 8 mil. Ap. intus 5*/ mill diam. 
(Coll. Nr. 67.) 
Cyclostoma luteostoma Som. in Proc. Zool. Soc. 1843. p. 62. *) 
— — Som. Thes. N. 125. p. 135. t. 30. f. 228. 229. 
— luteostomum Chemn. ed. II. N. 93. p. 96. t. 12, f. 21—23. 
Leptopoma luteostoma Pfr. in Zeitschr. f. Mal. 1847. p. 108. Consp. 
INQUIT: 
-— — Gray Catal. Cycloph, p. 24. N. 5. 
Habitat in insula Guimaras Philippinarum (H. Cuming). 
$. 2. 
7. L.immaculatum ('Furbo) Chemnitz. 184 
T. perforata, globoso-conica, tenuis, concentrice confer- 
tissime lineata, diaphana, albida, saepe castaneo punctata et 
strigato-maculata; spira conica, acuta; anfr. 5'/, convexi, ultü- 
mus superne carinis nonnullis obsoletis, ad peripheriam carina 
l validiore munitus, basi convexus; apertura vix obliqua, sub- 
circularis; perist. tenue, undique late expansum, marginibus 
disjunctis, columellari medio dilatato, umbilicum angustissimum, 
haud pervium non occultante. — Opere. normale. — Diam. 
maj. 17, min. 14, alt. 12 mill. Ap. intus 9 mill. longa. 
(Coll. Nr. 68.) 
Turbo immaculatus Chemn. Conch. IX. P. II. p. 57. t. 123. f. 1063, **) 
—  marginellus Gmel. Syst. p. 3602. N. 102. 
— laevis Wood Suppl. t. 6. f. 5. 
Cyclostoma laeve Gray in Wood suppl p. 36. 
— — . Som. in Proc. Zool. Soc. 1848. p. 63. 
*) T. globoso-conica, tenui, pellucida, albida, epidermide tenui, cornea 
induta; spira acuminata; anfr. 5 rotundatis, ultimo magno, ventrieoso; aper- 
tura subcirculari;  peritremate reflexo, aurantiaco, latere columellari sub- 
sinuato, prope ultimum anfractum interrupto; sutura distincta; umbilico 
parvo; opereulo tenui, corneo, multispirali. (Sow. l. c.) 
**) 'Turbo immaculatus pellucidus, testa terrestri, laevi, umbilieata, can- 
didissima, subcarinata, anfractibus 6 rotundatis, labro fimbriato, reflexo, 
apertura rotunda. (Chemm. l. c.) 
