574 CRETACEOUS PALEONTOLOGY. 



(163); Woodbury clay, Lorillard (102), near Matawan (103), 

 near Haddonfield (164, 165, 183); Wenonah sand, near Craw- 

 fords Corner (126^), near Marlboro' (130^); Navesink marl, 

 Crosswicks Creek (147^, 195); Red Bank Sand, Shrewsbury 

 River (119), Red Bank (116); Tinton beds, Beers Hill cut, 

 south of Keyport (129^). 



Geographic distribution. — New Jersey, North Carolina, Mis- 

 sissippi, Texas, Arkansas. 



Tenea pinguis Conrad. 

 Plate LXIIL, Fig. 7. 



1853. Lucina pinguis Con., Jour. Acad. Nat. Sci. Phil., 2d ser., 



vol.. 2, p. 275, pi. 24, fig. 18. 

 i860. Mysia gibbosa Gabb, Jour. Acad. Nat. Sci. Phil., 2d ser. 



vol. 4, p. 302, pi. 48, fig. 17 (not 18). 

 1861. Lucina pinguis Gabb, Synop. Moll. Cret. Form., p. 195 



(138). 

 1864. Lucina pinguis Meek, Check List Inv. Foss. N. A., Cret. 



and Jur., p. 12. 

 1868. Lucina ? pinguis Con., Cook's Geol. N. J., p. 726. 

 1876. Tenea pinguis Gabb, Proc. Acad. Nat. Sci. Phil. (1876), 



P- 307- 

 1886. Tenea pinguis Whitf., Pal. N. J., vol. i (Monog. U. S. 



G. S., vol. 9), p. 163, pi. 22, fig. 3 (not figs. 1-2 = 



Tenea parilis). 

 1905. Tenea pinguis John., Proc. Acad. Nat. Sci. Phil. (1905),' 



P- 15- 



Description. — Shell small, the dimensions of one specimen 

 being: height, 7 mm.; width, 8 mm.; thickness, 6 mm.; sub- 

 circular or obscurely subquadrangular in outline. Valves ex- 

 tremely ventricose or gibbous, giving to the entire shell a nearly 

 globular form. Umbones very prominent, the beaks incurved 

 and directed forward. Surface of the shell marked by somewhat 

 prominent concentric lines of growth. 



