938 SMITHSONIAN MISCELLANEOUS COLLECTIONS VOL. 127 
County, Tenn.: On U. S. Highway 41, $ mile southeast of Knox Branch, about 
9 miles southeast of Murfreesboro; on U. S. Highway 41, 14 miles northwest of 
Mount Olivet, 10 miles southeast of Murfreesboro; on U. S. Highway 70S, 
0.4 mile southeast of Readyville; on U. S. Highway 241, 14 miles (map measure) 
southwest of Christiana; cut on U. S. Highway 41, 14 miles north of road to 
Big Springs about 1 mile southwest of Mount Carmel Church; on U. S. High- 
way 70S, 1.65 miles west of Cripple Creek, 14 miles west of Kittrell. On Ten- 
nessee Highway 16, 5.1 miles north-northwest of Shelbyville, Bedford County ; 
Lewisburg ; east end of the bridge over Round Lick Creek, on U. S. Highway 
70N, at Rome, Smith County; near Lesters, south of Aspen Hill, Giles County ; 
Columbia, Maury County; Rutherford Creek, 4 miles north of Columbia, Maury 
County. 
Dryden formation in Tennessee: 30 feet above the marble on the road along 
Little Sycamore Creek, 4 mile northeast of the west edge of the Howard Quar- 
ter (T.V.A. 162-NW) Quadrangle; Tennessee Highway 53 at Nicely and Pal- 
mer’s store, 4 mile east of Kate, Maynardville (30’) Quadrangle. 
Ooltewah formation in Tennessee: Northeast of Snow Hill Post Office, Snow 
Hill (T.V.A. 112-NW) Quadrangle. 
Discussion.—This species is characterized by its rectangular outline, prominent 
ears, fine costellae, and large, thickened muscle region. It is most like S. medialis 
which also has prominent ears and a fairly wide rectangular outline. Stropho- 
mena medialis is, however, much more strongly costellate than S. grandimuscu- 
losa, and the muscle area is more rounded than in the Lebanon species. 
STROPHOMENA GRANDIS (Okulitch) 
Rafinesquina grandis Oxu.itcH, Canadian Field-Nat., vol. 49, No. 6, p. 98, pl. 1, fig. 2, 1935. 
Strophomena grandis (Okulitch) Satmon, Journ. Paleont., vol. 16, No. 5, p. 598, pl. 87, 
figs. 29, 30, 1942. 
Type.—Holotype: Peter Redpath Mus., McGill Univ., Montreal. 
Horizon and locality —Lowville formation in Quebec: At Pointe Claire. 
Leray =Chaumont formation in Quebec: At St. Vincent de Paul. 
STROPHOMENA INCONSUETA Fenton 
Strophomena inconsueta Fenton, Amer. Midland Nat., vol. 11, Nos. 3, 4, p. 154, pl. 10, 
figs. I, 2, 1928. 
Types——Holotype: Walker Mus. 25987; paratype: Walker Mus. 25989. 
Horizon and locality—Upper part of Plattin group (Macy formation) in 
Missouri: At South Beckett Hill, Weingarten (15’) Quadrangle. 
STROPHOMENA INCURVATA (Shepard) 
Producta incurvata SHEPARD, Amer. Journ. Sci., vol. 34, p. 144, figs. 1, 2, 1838.—BAssLER, 
U. S. Nat. Mus. Bull. 92, p. 1229, 1915 (for complete bibliography to 1915).—FENTON, 
Amer. Midland Nat., vol. 11, Nos. 3, 4, p. 146, 1928. 
Rafinesquina incurvata (Shepard) Kay, Bull. Geol. Soc. Amer., vol. 40, No. 1, p. 211, 1920. 
This species has been widely identified from lower Middle Ordovician rocks. 
A variety of species has been erroneously named Strophomena incurvata. Ac- 
