SCHASICHEILA. 
247 
Species : 
1. Nicoleti ShuttI, (Coll. 194. — Mexico.) . . Pneum. II. p. 220. 
2. a lata Menke. (Coll. 195. — Mexico.) ... - - - 221. 
3. ? pannucea Morelet, f (Guatemala.) ... - - - 221. 
4 . §eli. Pi*r. 
T. globoso-conica, tenuis, sublaevigata, nitida, pellucida, 
fulva ; spira conoidea, aoutiuscula ; anfr. 4 convexi, ultimus ven> 
trosus, pone columellam excavatus, callosus ; apertura parum 
obliqua, seraiovalis ; perist. simplex, tenue, rectum, marginibus 
lamina callosa junctis, dextro superne inciso, turn arcuatim 
procedente, columellari libero, substricto. ■ — Operc.? — Diam, 
maj. 41/2, min. 32/3, alt. 3 mill. (Mus. Cuming.) 
Helicina minuscula [Schasicheild) Pfr. in Proc. ZooL Soc. 1859. p. 29. 
Habitat . . . ? 
5. Pfjp. 
T. depressa, tenuiuscula, ruguloso-striata , sub epidermide 
decidua seriatim setigera rufescens ; spira vix elevata , vertice 
minuto; sutura impressa; anfr. 4^/3 planiusculi, ultimus sub- 
depressus, subtus medio callo tenui munitus; columella sim- 
plex, recedens, basi anfrorsum in denticulum desinens; aper- 
tura fere diagonalis, subsemicircularis ; perist. simplex, rectum, 
margine dextro superne inciso, turn angulatim producto, basali 
juxta denticulum columellae sinuato. — Operc. typicum. — 
— Diam. maj. 6^/2, min. 52/3, alt. 31/2 mill. (Coll. Nr, 196 .) 
Schasicheila minuscula ? Bland Geogr. distrib. landsh. W. India is- 
lands p. 25. “(Ann. Lyc. New- York VIT. p. 351.) 
— Bahamensis Pfr. in ]^alak. Bl. IX. 1862. p. 154. 
Habitat New-Providence insularum Bahamensium (Bland). 
Obs. Species testa depressa, fere planorboidea, a reliquis generis cog- 
nitis primo aspectu distinguenda. 
1546 
1547 
1548 
1549 
1550 
VI. Alcadia Gray. 
Pfr, Mon. Pneum. p. 404 . Suppl. p. 222 . 
