AM AURA. 



213 



Species of Catinus. 



agriensis, Recluz. 

 Antillarum, Recluz. 

 apertus, Anton. 

 bifasciatus, Recluz. 

 Carolius, Chenu. 

 Cuverianus, Recluz. 

 Delessertii, Chenu. 

 depressus, Phil. 

 Deshayesianus, Recluz. 

 haliotideus, Linn. 

 insculptus, Adams and Reeve. 

 Italicus, Chenu. 

 Javauicus, Chenu. 



lacteus, Klein. 

 Isevigatus, Lam, 

 latifasciatus, Adams and Reeve. 

 Leachii, Blainv. 

 Listeri, Recluz, 

 maculatus, Say. 

 perspectivus, Say. 

 planulatus, Chenu. 

 sinuatus, Recluz. 

 striatus, M. de Serr. 

 Turonicus, Recluz. 

 zonalis, Quoy and Gaim. 



Sub-gen. sigaretus, Lamarck (not Cuv.). 



Shell orbiculai', conoidal or convex ; aperture rounded ; um- 

 bilicus open, or covered by a fold of the inner lip ; spire oblique, 

 short. 



clathratus, Bosc. neritoideus, Linn. 



concavus. Lam. Petitianus, Recluz. 



Levesquei, Recluz. striatellus, Recluz. 



Genus AMAURA, Moller. 



Animal allied to Natica ; foot small, compact, destitute 

 of posterior lobe, anterior lobe deeply sinuated; eyes 

 subcutaneous, situated at the internal base of the lobe. 



Operculum terminal, horny, paucispiral, thin. 



Shell ovate, imperforate, smooth ; spire produced ; aper- 

 ture obpyriform, about half the length of the shell; colu- 

 mella short, simple. 



