21 American Tertiary Shells 21 



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

 Geologic horizon. — Midway Eocene. 



Locality.— "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 



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



Descriptio?i. — Size and shape of shell as indicated by the fig- 

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

 nearly centrally, swollen ; surface sculpture consists of numerous, 

 moderate in size, radiating ribs with very 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 very 

 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 figured.- — Pal. Museum, Cornell Univ. 

 Geological horizon. — Midway Eocene. 



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

 idad." 



Collected by A. C. Veatch in 19 12, then of the General As- 

 phalt Company of Philadelphia. 



Genus LEVIFUSUS Conrad 

 Levifusus whitei, n. sp., PI. 3. Fig. 11. 



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 distinct, appressed ; a ser- 

 ies of large, sharply rounded nodes occur on the upper portion of 

 he body whorl about one-fourth the distance from the suture t G 



