574 CRETACEOUS PALEONTOLOGY. 



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

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

 fords Corner (i26 3 ), near Marlboro (I3O 1 ); Navesink marl, 

 Crosswicks Creek (i47 3 , 195); Red Bank Sand, Shrewsbury 

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

 south of Keyport (i29 5 ). 



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. 1 8. 



1860. Mysia gibbosa Gabb, Jour. Acad. Nat. Sci. Phil., 2d ser. 



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



1 86 1. 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. 



