Vol. 5] 



Wemple 



. — New Cestraciont Teeth. 



73 



HYBODUS SHASTENSIS, n. sp. 

 P1.7, fig. 4. 



Type No. 10255, Univ. Calif. Col. Vert. Palae. From the Upper Triassic 

 at the west end of Bear Cove, Shasta County, California. 



The crown supports a high, robust principal cone with a 

 broad base. The upper portion of the principal cone is rather 

 sharply narrowed. There are five lateral denticles, three on one 

 side, and two faint elevations on the other ; all are short and when 

 preserved the tips are narrow. The sides of principal cone and 

 all of the denticles are cut into numerous strongly marked ridges. 

 The crown overhangs the base slightly. The base is wide, with 

 one margin deeply scalloped. 



Issued December ?', 1906. 



