4 SMITHSONIAN MISCELLANEOUS COLLECTIONS VOL. 89 



pares the Mexican with European species. W. Staub repeats identifi- 

 cation by H. Douville in his article on the origin of the Gulf of 

 Mexico.'' These articles do not affect the present paper, but I wish 

 to say that I sympathize with Douville's comparison of American 

 with European species. I feel, however, that the time is not quite 

 ripe for extensive critical comparisons. 



GEOLOGIC DISTRIBUTION OF SPECIES OF LEPIDOCYCLINA IN 

 MEXICO, CUBA, AND ANTIGUA 



MEXICO 



Eocene 



Lepidocyclina (Polylepidina) chiapasensis Vaughan 

 adkinsi Vaughan 

 proteiformis Vaughan 

 {Pliolepid'ma) duplicata Cushman 

 (Lepidocyclina) trinitatis H. Douville 

 macdonaldi Cushman 

 (Nephrolepidina) scmmesi Vaughan and Cole 



var. granosa Vaughan and 

 Cole 

 tantoyucensis Vaughan and Cole 

 Oligocene 



Alazan shale 



Lepidocyclina (Lepidocyclina) siipera (Conrad) 

 asterodisca Nuttall 

 (Eulepidina) favosa Cushman 

 Meson formation 



Lepidocyclina (Lepidocyclina) canellei Lemoine and R. Douville 

 ivaylandvaiighani Cole 

 parvtila Cushman 



var. crassicosta Vaughan and 

 Cole 

 (Nephrolepidina) tournoueri Lemoine and R. Douville 

 sp. indet. (previously identified as 



L. marginata (Micht)) 

 undosa Cushman 



var. tumida Vaughan 

 (Eulepidina) favosa Cushman 

 Lepidocyclina gigas var. mexicana Cushman 



CUBA 



Eocene 



Lepidocyclina (Lepidocyclina) novitasensis Vaughan 

 subraulinii Cushman 

 meinseri Vaughan 

 {N ephrolepidina?) perundosa Cushman 



' Staub, W., Zur Entstehungsgeschichte des Golfes von Mexico. Eclogae Geol. 

 Helvet., vol. 24, pp. 61-81, pi. 3. 6 maps, 1931. 



