770 CRETACEOUS PALEONTOLOGY. 



Formation and locality. Wenonah sand, near Crawfords 

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

 Crawfords Corner (i26 7 ), Mullica Hill (169), Atlantic High- 

 lands (108), Crosswicks Creek (i47 4 ). 



Geographic distribution. New Jersey, Alabama. 



Turbinella parva Gabb. 

 Plate XC., Figs. 23-24. 



1860. Turbinella parua Gabb, Proc. Acad. Nat. Sci. PhiL 



(1860), p. 94, pi. 2, fig. 3. 



1861. Turbinella parua Gabb, Synop. Moll. Cret. Form., p. 142 



(86). 

 1864. Turbinella parva Meek, Check List Inv. Foss. N. A.,. 



Cret. and Jur., p. 21. 



1868. Turbinella parva Con., Cook's Geol. N. J., p. 730. 

 1892. Turbinella, ? parua Whitf., Pal. N. J., vol. 2 (Monog. 



U. S. G. S., vol. 18), p. 80, pi. 9, figs. 4-6. 

 1905. Turbinella parva Johns., Proc. Acad. Nat. Sci. Phil, 



(1905), p. 25. 



Description. Shell small, subturbinate in form, the greatest 

 diameter being near the top of the volution, rapidly narrow- 

 ing below, spire depressed, but not quite flat; the dimensions 

 of an incomplete internal cast are: height, 11.5 mm., but if the 

 spire were complete anteriorly it would probably be 13 mm. or 

 14 mm.; maximum diameter, 14 mm. Volutions about three 

 in number, flattened above, rounded on the periphery ; aperture 

 large, oblique, higher than wide; columellar cavity in the casts 

 broad, marked by three distinct plications or folds, the two upper 

 ones a little above the lower third of the aperture, equal in 

 strength and near together, the lowest one larger and more dis- 

 tant, but not so sharply defined as those above ; volutions marked 

 by sinuous vertical folds of considerable strength, indicated on 

 the top of the volution, but more strongly marked on the per- 

 iphery and below, being strongly bent backward in crossing the 

 largest part of the whorl. 



