154 BULIMINiE. 



Sub-gen. cabyodes, Albers. 



Shell solid, imperforate, oblong-ovate ; whorls plicate at the 

 suture, the last equalling the spire ; columella rather straight ; 

 peristome simple, obtuse. 



Baconi, Bens. Dufresnii, Leach. 



Genus orthalicus, Beck. 



Shell imperforate, ovately conical ; spire rather obtuse, 

 last whorl shorter than the spire ; aperture oval; columella 

 somewhat thickened, rather involute ; peristome simple, the 

 margins joined by a deeply -intrant callus. 



Syn. Oxystyla, Schliitt. 



Ex. 0. zebra, Midler, pi. 75, fig. fi. Shell, 0. zebra, 

 fig. C, a. 



The species of Orthalicus inhabit the Antilles, the whole 

 of Brazil, Columbia, and the north of Peru. The sub-genus 

 Corona is principally found in Peru and Central America, 

 where they live in the centre of the great forests ; Chili, 

 Peru, Bolivia, Guiana, and Brazil are the localities of the 

 group Plectostyht* ; the species of Leptomerus are from 

 Central America, the Antilles, Brazil, and Mexico. Ectb- 

 dotus is a Chilian and Peruvian group, living principally 

 in the forests of the mountain ranges. 



Species of Orthalicus. 



Bensoni, Reeve. pavoninus, Spice. 



crystallinus, Reeve. phlogerus, D'Orb. 



gallina-sultana, Chem. pulchellus, Spi.v. 



monodon, C. B. Adams. zebra, Mull. 



