PART I CHAZYAN AND RELATED BRACHIOPODS—COOPER 235 
LINGULASMA sp. 1 
Two specimens from the Oranda formation indicate a species not yet described. 
The ornamentation is quite unlike that of L. compactum but is more suggestive 
of L. oklahomense. These specimens have strong concentric lamellae on the pos- 
terolateral areas which are covered by fine, crowded, concentric lines and rows 
of granules. In the median and anterior portions of the shell the rows of granules 
are distant, about 4 to the millimeter. 
Described specimens.—109354, 123303. 
Horizon and locality—Oranda formation in Virginia: Along the Southern 
RR. tracks 4 mile west of Strasburg, Strasburg (15’) Quadrangle, and 0.4 
mile west of U. S. Highway 11 on Virginia Highway 55, in the north edge of 
Strasburg, Strasburg (15’) Quadrangle. 
LINGULASMA sp. 2 
This species, which is represented by the front end only, is the largest that has 
been found. The specimen measures 34.6 mm. in width. It is marked medially 
by distant rows of pustules, about 5 to the millimeter, but laterally it is marked 
by strongly crowded concentric lines and more closely spaced rows of pustules. 
The specimen was found in the lower portion of the Pinesburg member of the 
Shippensburg formation on U. S. Highway 40 at Wilson, 7 miles west of Hagers- 
town, Williamsport (15’) Quadrangle, Md. 
Described specimen.—123304. 
LINGULASMA sp. 3 
Shell small for the genus, perhaps a young specimen, somewhat rectangular 
in outline; sides subparallel; anterior margin nearly straight; anterolateral ex- 
tremities narrowly rounded. Surface marked by distant concentric undulations 
over which are superimposed fine, crowded wavy lines and closely spaced rows 
of pustules. 
Measurements in mm.—116794, length 15.8+, width 12.4, thickness 4.2+. 
Described specimen.—116794. 
Horizon and locality—Edinburg formation (lower part of the middle of the 
Nidulites zone) in Virginia: Beside the road along Tumbling Run, 14 miles 
southwest of Strasburg, Strasburg (15’) Quadrangle. 
Discussion.—The ornamentation is very much like that of L. compactum in 
its crowded nature but differs in having more distant concentric undulations and 
a lesser development of the pustules. 
Genus LINGULOPS Hall, 1871 
LINGULOPS CLIFTONENSIS Foerste 
Plate 23, C, figures 5, 6 
Lingulops cliftonensis ForrstE, Journ. Geol., vol. 11, p. 38, 1903. 
Figures of this species are introduced to show the extent of development of 
the platform in the brachial valve of Lingulops. Compare with Elliptoglossa and 
Lingulops norwoodi on the same plate. 
