175 



CAROCOLLA. 



HELIX GUALTERIANA. LintUBUS. 



Mawes Linrueus, pi. 29, / 3. 



This is the first of Lamarck's divisions of the G. He- 

 lix of Linnaeus, and though the shells composing it 

 are very nearly allied to the Helices, they nevertheless 

 offer sufficient reasons for constituting a distinct genus. 

 Shell orbicular, more or less convex or conoid, and 

 sometimes quite flat on the upper part, as in the 

 G. Gualteriana; the circumference of its outer whorl 

 carinated and sharp; aperture ovate, contiguous to 

 the axis of the shell; the right lip or margin sub- 

 angular, and frequently toothed within. They are 

 all terrestrial shells. 



Carocolla acutissima Carocolla Madagascari- 



albilabris eusis 



angistoma marginala 



labyrinthus lychnuchus 



lucerna planata 



inflata planaria 



Gualteriana hispidula 



bicolor lapicida 



Mauritiana albella 



Carocolla elegans. 



