128 Systematic Paleontology — Middle Devonian' 



Length, 7, 11 mm.; width, 5|, 7 mm. 



Occurrence. — Romney Formation. Onondaga Member. Williams 

 Road 3i miles southeast of Cumberland. Hajulton ^Iember. Oldtowii 

 Road near Cumberland; B. ^l' 0. R. R. cut at 'ilst Bridge; Williams Road 

 \ mile east of (}ueen City Hotel, Cumberland: Williams Road, 3| miles 

 southeast of Cumberland; on Oldtown Road east of Maryland Ave., 

 Cumberland. 



Collection. — Maryland Geological Survey. 



LiNGULA cf. compta Hall and Clarke 

 Plate VIII, Fig. 11 



Lingula compta Hall and Clarke, 1892, Pal. N. Y., vol. viii, pt. i, p. 171, pi. i, 



fig. 16. 

 Lingula compta Schuchert, 1897, Bull. U. S. Geol. Surv., No. 87, p. 24G. 

 Lingula compta Clarke, 1903, N. Y. State Mus., Bull. 65, p. 246. 



Description. — " Sliell very narrow, with lateral margins nearly parallel 

 for most of their length, the anterior margin transverse and the posterior 

 less abruptly rounded. Shell-substance thin. Surface marked by fine 

 concentric striae. A narrow median furrow extends from just behind the 

 center of the brachial (?) valve nearly to the anterior margin. Length 

 of this valve, 9 mm., greatest width, 4.5 mm." Hall and Clarke, 1892. 



This specimen is larger than the one figured by Hall and Clarke and its 

 width in proportion to the length is somewhat greater. 



Length, IG mm.; width. 9 mm. 



Occurrence. — Romney Formation, Haimiltox Member. East bank 

 of Evitts Creek below Wolfe Mill. 



Collection. — Maryland Geological Survey. 



Lingula clarki n. sp. 



Plate VIII, Figs. U. 13. 



Drscriplion. — Shell narrow, width about one-half the length, central 

 portion of lateral margins parallel hut tapering at each end toward the 

 apex. Shell strongly convex along the median line from the beak well 



