105 



Section CYPHOTIFER, Piette, 1876. Jurassic. S. and S. Conch., 

 ii, 195. 



Genus ALARIA, Morris and Lycett, 1850. 



Jurassic. S. and S. Conch., ii, 195, t. GO, f. 91. 



Section I. ALARIA (sensu stricto). Varicose. 



Section II. DICROLOMA, Gabb, 168. No varices, lip two- or 

 three-digitate. Jurassic, Cretaceous. S. and S. Conch., ii, 194, 

 t. 60, f. 88. 



Section III. ANCHURA, Conrad, 1860. L. c., ii, 194, t. 60, f. 84. 



Submenus DIEMPTERUS, Piette, 1876. 

 Jurassic. Structural and Syst, Conchology, ii, 195. 



Subgenns SPINIGERA, d'Orb., 1850. 

 Jurassic. Structural and Syst. Conch., ii. 192, t. 60, f. 79, 80. 



Subfamily Strttthiolariinse. 

 Genus STRUTHIOLARIA, Lam., 1812. 



Animal with the outer mantle-margin simple, tentacles cylin- 

 drical ; eye pedicels short, adnate with the tentacles externally ; 

 foot broad and short. Operculum short, claw-shaped, with an 

 apical projection. 



Shell imperforate, oval oblong ; spire turreted ; aperture trun- 

 cated in front; lip entire, thickened, sinuous, prominent in the 

 middle, inner lip callous, expanded. Southern Seas. S. nodulosa, 

 Mart. 



Section I. STRUTHIOLARIA (sensu stricto). 



Section II. PELICARIA, Gray, 1857. Spire of adult covered 

 with enamel ; outer lip sinuous, thin. S. scutulatq, Mart. 



Section III. LOXOTREMA, Gabb, 1878. S. and S. Conch., ii, 

 196, t. 60, f. 95. 



? Section IV. DOLOPHANES, Gabb, 1872. L. c., ii, 196. 



