lotorium, Linn. 

 rhinoceros, Bolt. 



TRITONIUM. 



tigrinum, Brod. 



103 



Sub-gen. gutturnium, Klein (Ranularia, Schum.). 



Shell subturreted ; whorls nodoselj ribbed ; outer lip thick, 

 plicated internally ; canal produced. 



segrotum, Reeve. 

 amictum, Reeve. 

 Antillarum, UOrh. 

 caudatum^ Gmel. 

 clavator, Cliem. 

 crispum, Reeve. 

 cynocephalum, Lam. 

 elongatum, Reeve. 

 encausticum, Reeve. 

 exaratum, Reeve. 

 exile, Reeve. 

 gallinago, Reeve. 

 gibbosum, Brod. 

 gracile, Reeve. 



moniliferum, Adams and Reeve. 



moritinctum, Reeve. 



nodulum, Mart. 



pyrulum, Adams and Reeve. 



pyrum, Lam. 



retusum, Lam. 



sacrostoma, Reeve. 



Sinense, Reeve. 



testudinarium, Adams and 



Reeve. 

 Thersites, Reeve. 

 trilineatum, Reeve. 

 tripus, Ghem. 

 vespaceum, Lam. 



Sub-gen. epidromus, Klein (Colubraria, Schum. Cuniia, Bivon.). 



Spire longer than the aperture ; aperture narrow, contracted ; 

 outer lip internally crenated. 



antiquatum, Hinds. 

 angulatum, Reeve. 

 anomalum, Hinds. 

 bacillum, Reeve. 

 bracteatum, Hinds. 

 Ceylonense, Soiv. 

 concinnum, Reeve. 

 convolutum, Brod. 

 decapitatum, Reeve. 

 decollatum, Sow. 



digitale, Reeve. 

 distortum, Schuh. and Wag. 

 eburneum, Reeve. 

 eximium, Reeve. 

 fictile, Hinds. 

 lativaricosum. Reeve. 

 lanceolatum, MenJce. 

 limbatum, Phil. 

 maculosum, Mart. 

 nitidulum, Sovk 



