Vol. VII] WARING- STRATIGRAPHIC AND FAUNAL RELATIONS ()\ 



Glycimeris veatchii Gabb 



PI. 8, Figs. 2, 7 and 8 



Axincea veatchii Gabb, Pal. Cal., vol. 1. p. 197, pi. 25, figs. 

 183-183a. 



Pcctunaihis veatchii Gabb, 17th An. Rept. U. S. G. S., p. 

 1039, pi. 64, fig. 1. 



Gabb's original description is as follows: "Shell thick, 

 subglobose, equivalve and nearly equilateral ; beaks large, in- 

 curved, central, approximate, with sides sloping downward, 

 anterior and basal margins regularly rounded ; posterior end 

 rounded, or subtruncate, surface marked by 36 to 40 radiat- 

 ing ribs, very regular in size, a little the smallest anteriorly 

 and obsolete behind ; a faint depression usually exists on the 

 posterior side of the umbones, which passes down and strikes 

 the middle of the posterior margin. Internal margin coarsely 

 crenulated. Hinge robust; teeth arranged radiately, the lat- 

 eral teeth largest and most widely separated. Area very 

 short and narrow." 



The radiating ribs in the young are usually narrower than 

 the interspaces, while in the adult they are broader. The 

 height of the shell is slightly greater than the length. Locali- 

 ties 1, 2 and 3. L. S. J. U. Pal. Coll. 



Inoceramus pembertoni, new species 



PI. 7, Figs. 7 and 8 



This enormous Inoceramus has a length of 22 cm. and a 

 breadth of 15 cm.; thickness of both valves about 10 cm. 

 Some of the prismatic layer of the shell is still present on the 

 bufif sandstone cast which shows the valves to have been 

 oval in shape with straight cardinal margin posteriorly ; beaks 

 prominent, approximate, and turn posteriorly; anterior mar- 

 gin robust and rounding, and grading into the slightly convex 

 basal margin; posterior margin presenting a jagged out- 

 line due to a single large wrinkle which is concave in the 

 right valve and convex in the left ; surface ornamented by 

 about 20 coarse, rounded concentric ribs. From locality 3, 

 L. S. J. U. Pal. Coll. 



