Mauylani) Gkoi.ogical SruvKY 179 



length. In a specimen of L. limilaris of the same size, the plications are 

 scarcely perceptible." Hall, 1867. 



Occurrence. — Eomney Formation, Marcellus Member. Williams 

 Road, 314 miles southeast of Cumberland. 



Collection. — U. S. National Museum. 



[E. M. Kindle.] 



CeNTRONELLA cf. OVATA Hall 



Plate XVI, Figs. 1-3 

 Centronella ovata Hall, 18G7, Pal. N. ¥., vol. iv, p. 419, pi. Ixi A. figs. 47-49. 



Description. — Shell small, oval or slightly ovate; width and height as 

 four to five, greatest width near the middle of the length. Dorsal valve 

 depressed convex, without perceptible sinus. Ventral valve much deeper 

 than the dorsal, subcarinate along the center, most ventricose just below 

 the beak, which is strongly incurved; lateral margins of the beak slightly 

 carinate. Surface marked only by concentric lines of growth. This 

 species resembles C. julia in form, but is a narrower shell, with a less 

 convex dorsal valve ; the ventral valve is more ventricose and carinate 

 along the middle, and the beak more strongly incurved. Hall, 1867. 



Occurrence. — Romney Formation, Onondaga Membee. One mile 

 east of Oldtown, in cut of Western Maryland Railroad. 



Collection. — U. S. National Museum. 



[E. M. Kindle.] 



Superfamily TEREBRATULACEA 



Family TEREBRATULIDAE 



Subfamily TEREBRATULINAE 



Genus EUNELLA Hall and Clarke 

 EUNELLA LINCKLAENI Hall 



Plate XV, Figs. 18-23 



Terebratula lincklaeni Hall, 1860, Thirteenth Rep. N. Y. State Cab. Nat. Hist., 



p. 88. 

 Cryptonella lincklaeni Hall, 1861, Fourteenth Rep. N. Y. State Cab. Nat. Hist., 



p. 101. 



