5o8 CRETACEOUS PALEONTOLOGY. 



1899. Modiola suhinfiata Whitf., Ann. N. Y. Acad. Sci., vol. 

 12, p. 160. 



Description. — "Shell small, cylindrically ovate, with large, 

 tumid, anterior beaks, and parallel dorsal and basal margins. 

 Anterior and posterior ends nearly equally rounded in a general 

 view, as the beaks, from their downward direction of curvature 

 as seen in a lateral view, are blended with the anterior margin 

 so nearly as tO' give almost the same form as the posterior end. 

 In a 'dorsal view the form is strongly cuneately ovate from the 

 rapid attenuation of the shell posteriorly. Hinge-line rather 

 short and the ligament slender." (Whitfield.) 



Remarks. — "This species bears considerable resemblance to 

 Modiola Johnsoni, but never attains soi great a size, is more cylin- 

 drical, with a differently formed beak, and a different surface 

 structure, being smoother and destitute of the strong concentric 

 markings so prominent on that one, and is alsO' more attenuated 

 behind. There are some features about the shell in its general 

 expression which are almost indescribable, but which give it more 

 the appearance of a species of Lithophagws than that of a true 

 Modiola, and leave an uncertainty about its true generic relations, 

 the specimens being only casts." (Whitfield.) 



The dimensions of the type specimen are: length, 15.5 mm. ; 

 height, 7.5 mm.; thickness, 7.5 mm. 



Pormation and /ocff/i'h'.— Hornerstown marl, Mr. Ware's pits, 

 near Mullica Hill. (Whitfield.) 



Geographic distribution.- — New Jersey. 



Modiola ovata Gabb. 

 Plate LV., Figs. 16-17. 



i860. Modiola ovata Gabb, Jour. Acad. Nat. Sci. Phil., 2nd 



ser., vol. 4, p. 396, pi. 68, fig. 31. 

 1861. Modiola ovata Gabb, Synop. Moll. Cret. Form. p. 199 



(143). 

 1864. Modiola ovata Meek, Check List Inv. Foss. N, A., Cret. 

 and Jun, p. 11. 



