760 CRETACEOUS PALEONTOLOGY. 



Formation and locality. Woodbury clay, Lorillard (102), 

 near Haddonfield (165). 



Geographic distribution. New Jersey, North Carolina. 



Genus SERRIFUSUS Meek. 



Serrifusus nodocarinatus Whitfield. 



Plate LXXXIX., Fig. 13. 



1892. Serrifusus (Liroftisus) nodocarinatus Whitf., Pal. N. J. r 

 vol. 2, (Monog. U. S. G. S., vol. 18), p. 64, pi. 5, 

 figs. 22-23. 



Description. "Shell of medium size, abruptly fusiform in 

 general outline; spire broad conical, the height from the broad- 

 est part of the body volution being somewhat less than the diam- 

 eter at its periphery; beak short, slender; volutions three or 

 four (the specimen being imperfect), somewhat bicarinate in 

 the middle where there is a nearly vertical, obliquely flattened 

 area or band, above which the surface slopes rapidly to* the suture 

 and is very slightly concave; below this point the volution con- 

 tracts very abruptly to the short, slender canal, leaving the body 

 volution somewhat compressed-discoidal or wheel-like in form, 

 which in the specimen is possibly exaggerated by vertical crush- 

 ing; periphery of the volutions marked by rather strong, trans- 

 verse node-like vertical folds, which are also continued in less 

 strength above and below, and the entire surface is occupied by 

 spiral ridges of considerable strength, but which alternate in 

 size on the lower part of the volution; four or five of these 

 revolving ridges occupy the upper side; about three mark the 

 vertical space of the periphery, and seven or more may be 

 counted on the lower side of the body volution, in the poorly 

 preserved specimen used; aperture not seen." (Whitfield.) 



Remarks. This is a rare form, which, so far as known, is 

 represented only by the type specimen described by Whitfield. 



Formation and locality. Navesink marl, Marlboro (Whit- 

 field.) 



Geographic distribution. New Jersey. 



