MOLLUSCOIDEA. 357 



the Fox Hills formation of the Northwest; this specimen, how- 

 ever, is perhaps somewhat distorted, and there seems to be no 

 reason for recognizing more than a single species among the 

 New Jersey specimens. Most of the specimens are somewhat 

 decidedly subtruncate at the anterior margin and do not seem to 

 differ in any essential respect from the illustrations of L. sub- 

 spatulata. 



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

 Crosswicks (168), near Haddonfield (183, 165, 164). 



Geographic distribution. New Jersey, Nebraska, New Mex- 

 ico, Manitoba. 



Order TELOTREMATA. 

 Family TEBEBRATULIDAE. 



Genus TEREBRATULA Klein. 



Terebratula harlani Morton. 

 Plate XXVIII, Figs. 1-8. 



1829. Terebratula Harlani Mort., Am. Jour. Sci., ist ser., vol. 



18, p. 250, pi. 3, fig. 16; vol. 17, p. 283. 

 1829. Terebratula Harlani Mort., Jour. Acad. Nat. Sci. Phil., 



ist ser., vol. 6, p. 73, pi. 3, figs. 1-4. 

 1829. Terebratula perovalis Mort., Jour. Acad. Nat. Sci. Phil., 



ist ser., vol. 6, p. 77, pi. 3, figs. 7-8. (Not T. pero- 

 valis Sowerby.) 

 1834. Terebratula Harlani Mort., Synop. Org. Rem. Cret. Gr, 



U. S., p. 70, pi. 3, %. i, pi. 9- 

 1834. Terebratula Camilla Mort., Synop. Org. Rem. Cret. Gr. 



U. S., p. 70. 

 1853. Terebratula Harlani Marcou, Expl. Text to Geol. Map 



U. S. and Brit. Prov. N. A., p. 47, pi. 7, fig. 8. 

 1861. Terebratula Harlani Gabb, Proc. Acad. Nat. Sci. Phil... 



1861, p. 18. 

 1861. Terebratula atlantica Gabb, Synop. Moll. Cret. Form., p. 



250 (194). 

 1 86 1. Terebratula Harlani Gabb, Synop. Moll. Cret. Form., p. 



252 (196). 



