622 SMITHSONIAN MISCELLANEOUS COLLECTIONS VOL. 127 
Pierce formation in Rutherford County, Tenn.: at Nice’s Mill, west fork of 
Stone River, 8 miles (airline) northwest of Murfreesboro; Pierce Mill at Walter- 
hill, on Tennessee Highway 10, 74 miles north of Murfreesboro. 
Wardell part of Dryden formation in Viriginia: In north quarry on Station 
Creek, 4 mile south of U. S. Highway 58, 2 miles east of Cumberland Gap, 
Wheeler (T.V.A. 153-SE) Quadrangle. 
Wardell and Wardell part of Dryden formation in Tennessee: 0.3 mile south- 
west of Little Barren Church, northwest corner of the Powder Springs (T.V.A. 
154-SW) Quadrangle; Jacksboro, Jacksboro (T.V.A. 136-SW) Quadrangle; 
I mile west of Lone Mountain, Tazewell (T.V.A. 154-NE) Quadrangle; north 
of canyon of Gap Creek, 14 miles west of Arthur, Cumberland Gap (T.V.A. 
153-SW) Quadrangle; Raccoon Valley, 5 miles south of Clinton, Clinton 
(T.V.A. 137-SW) Quadrangle; 1 mile west of crest of Missionary Ridge, Chat- 
tanooga, Chattanooga (30’) Quadrangle; hill back of Camp Loyston, Maynard- 
ville (30’) Quadrangle; Little Mulberry Creek on road up Sycamore Valley, 
Back Valley (T.V.A. 161-SE) Quadrangle. 
Peery formation (lower 8 feet) in Virginia: South side of Peery Lime Com- 
pany Quarry on Virginia Highway 61, North Tazewell, North Tazewell (T.V.A. 
217-NE) Quadrangle. 
Ridley formation in Kensington (T.V.A. 106-SE) Quadrangle, Georgia: 
10 miles south of Chickamauga; on U. S. Highway 27, 4.2 miles north of Rock 
Spring; quarry on the west side of the road, 14 miles south-southeast of Cove 
Church, 5 miles south of Chickamauga. 
Hostler formation in Pennsylvania: In the section between Rodman and 
Roaring Spring, Hollidaysburg (15’) Quadrangle; National Lime Quarries, 
Shrader Station= Naginey P. O., Lewistown (15’) Quadrangle. 
Bromide formation (Pooleville member) in Oklahoma: 5 feet below the Viola 
contact in the road cut on Oklahoma Highway 99, NWiNE4SW3 sec. 12, 
T. 1 N., R 6 E., 3 miles south of Fittstown, Pontotoc County. In Murray 
County, Okla., at base of bed 2 on Spring Creek, sec. 17, T. 2 S., R. 1 W.; in 
the Tetradium beds in the top 10 feet on Colbert Creek, SESNE}4 sec. 15, T. 1 S., 
R. 1 E., 3 to 4 miles southwest of Davis; E4 sec. 1, T. 2 S., R. 2 W., 3 miles 
east of Pooleville; 4 miles west and 2 miles south of Davis. 
Pamelia formation (50 inches from top) in New York: Quarry east of rail- 
road bridge north of Mill Creek in Lowville, Lowville (15’) Quadrangle. 
Lower Plattin group (Bloomsdale formation) in Missouri: On the Heck place, 
14 miles south-southeast of River aux Vasses, Weingarten (15’) Quadrangle. 
Plattin group in Arkansas: On east side of Arkansas Highway 69, 2 miles 
north of Cushman, Batesville (30’) Quadrangle. 
Discussion.—The material on which this species is based consists of fairly well 
preserved silicified specimens etched from limestone, as well as excellent speci- 
mens weathered from shaly seams in calcilutite or from calcilutite. The silici- 
fied specimens preserve the long crura of the brachial valve with the hooklike 
process on the extremity. 
