21 American Tertiary Shells 21 



Type and specimens figured. — Pal. Museum, Cornell Univ. 



Geologic horizon. — Midway Eocene. 



Z^ra/zVj'.— "Bed No. 2, Soldado Rock, Gulf of Paria, Trini- 

 dad." 



Collected by A. C. Veatch in 191 2, then of the General As- 

 phalt Company of Philadelphia. 



Genus MACROCALLISTA Meek 

 Macrocatlista ? veatchi, n. sp.. PI. 3. Figs. 6. 7. 



Description. — Size and shape of shell as indicated b}' the fig- 

 ures ; high compared with the size of the shell ; beaks .situated 

 nearlj' centrall}^ swollen ; surface sculpture consists of numerous, 

 moderate in size, radiating ribs with ver}^ narrow interspaces, 

 less than one-half the width of the ribs. The first cardinal of the 

 right valve differs from the type of Macrocallista in being a ver>- 

 large, heavy tooth, the posterior ligamental groove in this form 

 is not as deep or external as in most species of Macrocallista . 

 These characteristics, with the shortness of form probably makes 

 the species of sectional rank. Longitude of shell 22mm : altitude 

 19mm. 



Type and specimens figiired. — Pal. Museum, Cornell Univ. 



Geological horizon. — Midwa}' Eocene. 



Locality. — "Bed No. 2, Soldado Rock, Gulf of Paria, Trin- 

 idad." 



Collected hy A. C. Veatch in 1912, then of the General As- 

 phalt Company of Philadelphia. 



Genus LEVIFUSUS Conrad 

 Levifusus whitei, n. sp., PI. 3. Fig. \\. 



Description. — Size and .shape as indicated by the figures ; 



whorls five or six ; on the specimen we have, the last volutions of 



he spire are broken, but the spire would probably measure half 



he length of the body whorl ; suture di.stinct, appressed ; a ser- 



-ies of large, sharph' rounded nodes occur on the upper portion of 



he body whorl about one-fourth the distance from the suture ty 



