12 SMITHSONIAN MISCELLANEOUS COLLECTIONS [VOL. 50 



be so regarded), nor is the arrangement intended to be systematic. 

 It is intended rather to illustrate the feature referred to earlier in this 

 paper, viz., the recurrence of similar types of form in successive ages 

 or horizons ; or, in widely separated regions in the same age, without 

 regard to close genetic connection. The subordinate sections of 

 Volutoderma are omitted here, but will be found elsewhere. 



The year indicates the date of publication of the name following, 

 to which is added the general region and the name of the typical 

 species. When a group-name recurs in the table the type species is 

 mentioned only in connection with the earliest appearance of the 

 group, which, however, may have a type species belonging to a later 

 horizon. 



The names preceded by an asterisk belong to the Caricellinse, those 

 without the asterisk to the Volutins. All are grouped with refer- 

 ence to external forms. 



PARTIAL LIST OF FOSSIL VOLUTIM 

 Cretaceous 



Piruliform 



1868. Ficulopsis Stoliczka, India. F. pondicherriensis Forbes. 

 1888. Ficulomorpha Holzapfel, Aachen. F. pyruliformis Miiller. 



Coniform 

 1865. Gosavia Stoliczka, Gosau. G. squamosa Zekeli. 



Muriciform 



1906. Plejona (Bolten) Dall, worldwide. P. spinosa Lam. 



Fusiform 



1876. Volutoderma Gabb, worldwide. V. calif ornica Dall. 



1876. Volutomorpha Gabb, American. V. conradi Gabb. 



1864. Piestochilus Meek, worldwide. P. scarboroughi Meek & Hayden. 



Bucciniform 

 1890. Volutocorbis Dall, worldwide. V. limopsis Conrad. 



Meloniform 



1907. Liomelon Dall, India. L. pyriformis Forbes. 



Eocene 



Piruliform 

 1907. Rctipirula Dall, California. R. crassitesta Gabb. 

 1892. Glyptostyla Dall, Panama. G. panamensis Dall. 



