10 Doll and Bartsch The PyramidelKdce. 



Shell not inflated 



Summit of tlie whoyls not shouldered- 



S-ubg. Odostomiella Bwcqvioy, Dautzenberg- 

 and Dollfusy 1883. 

 Type 1 , Rixtoa doliolum Phil, 



Summit of the whorl* tabulate) I 



Subg. Salassia De Folin, 1885. 



Type, Salasyia earinata De Fol, 



Spiral markings- consisting of a strong, broad, raised cotcl 

 at the summit of the whorls, separated from the remain 

 ing part by a strongly impressed spiral groove 

 Vilia smbg. nov. 

 Type, Odofitomia ( Vitia) piMryi 



s>p. IM>V, 



Spiral mrrkings consisting of two tumid rfclges, one at the 

 periphery and one at the summit of the whorls> with 

 many striations on the base 



Folinella subg. nov. 



Type, Amour a angulifereng De FoL 



Spiral markings consisting of several to many raised threads 

 in the intercostal spaces, always less strongly developed 

 than the axial ribs 



Intercostal spaces crossed by equally spaced, raised 

 spiral threads, sculpture reticulated 



Snbg. Trabecula Monterosato 1884. 



Type, Odottomia jeffreysiana Monter. 



Intercostal spaces crossed by several raised spiral 

 threads, base not spirally marked 



Subg. Parthenina Bucquoy, Dautzenberg 



and Pollfus, 1883. 

 Type, Turbo interstinctus Montagu. 



Intercostal spaces crossed by several spiral threads, base 

 spirally striated 



Bes'a subg. nov. 



Type, Chrysallida convexa Cpr. 



Spiral markings consisting of strong, raised threads or cords, 

 equal to, or even stronger than axial ribs 

 Spiral cords equally spaced, and equally well developed 

 between the sutures and on the base; sculpture nodu 

 lose throughout 



Subg. Mumiola A. Adams, 1864. 



Type, Monoptygma spirata A . Ads. 



