﻿1 130 SMITHSONIAN MISCELLANEOUS COLLECTIONS VOL. I27 



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D. Plectocamara erccta Cooper, new species 599 



(17-21) Respectively anterior, posterior, pedicle, side, and brachial views of a 

 complete specimen, X 3, holotype, 117183. 



Wardell formation (upper Receptaculites bed), Lee Valley, Lee Valley 

 (T.V.A. 171-NW) Quadrangle, Tenn. 



E. Plectocamara costata Cooper, new species 598 



(22-26) Respectively anterior, brachial, side, pedicle, and posterior views of a 

 small paucicostate specimen, X 3, paratype, 117184. 



Lincolnshire formation (Hogskin member — Oligorhynchia zone), 0.4 mile 

 east-northeast of Red Hill, 4% miles west-southwest of Thorn Hill, Avondale 

 (T.V.A. 162-SW) Quadrangle, Tenn. 



F. Plectocamara cf . P. costata Cooper, new species 598 



( 2 7"30 Respectively pedicle, anterior, side, posterior, and brachial views of a 

 large specimen, X 3. figured specimen, 123457. 

 Horizon and locality same as preceding. 



G. Plectocamara aseptata Cooper 597 



(32-36) Respectively pedicle, brachial, posterior, side, and anterior views of a 

 large specimen, X 2, paratype, 111361c; (37-40) respectively side, brachial, ante- 

 rior, and pedicle views of a small specimen, X 3, paratype, 117182a; (41-44) 

 posterior, anterior, side, and pedicle views of a specimen larger than the preced- 

 ing, X 3. paratype, 117182b; (45-49) respectively anterior, pedicle, side, poste- 

 rior, and brachial views of a large, fully grown specimen, X 3, paratype, 

 117182c; (50-54) respectively anterior, posterior, side, brachial, and pedicle 

 views of a large but not fully grown individual, X 3, paratype, H7i82d. 



Benbolt formation (base), east side of Brick Church, \\ miles west-south- 

 west of Rye Cove, Clinchport (T.V.A. 188-NW) Quadrangle, Tenn. 



Plate 124 



DORYTRETA, OLIGORHYNCHIA, RoSTRICELLULA, SpHENOTRETA 



A. Dorytreta ovata Cooper, new species 667 



(1, 8) Brachial and pedicle views of a medium-sized specimen, X 4, paratype, 

 117193a; (2-5, 9) respectively brachial, anterior, side, posterior, and pedicle 

 views of a complete specimen, X 4, paratype, 117193b; (6, 7) pedicle and brach- 

 ial views of a small specimen, X 4, paratype, 117193c. 



Lenoir formation (calcarenite under the Mosheim), south side of the cemetery 

 at Friends Church, north corner of Friendsville, Concord (T.V.A. 138-SW) 

 Quadrangle, Tenn. 



(10-13) Respectively anterior, pedicle, side, and brachial views of a nearly com- 

 plete specimen, X 4, holotype, 117192. 



Lenoir formation (basal foot), west of Friendsville Station and just south of 

 Friends Church, Friendsville, Concord (TV. A. 138-SW) Quadrangle, Tenn. 



B. Oligorhynchia subplana Cooper 662 



(14-17) Respectively anterior, side, pedicle, and brachial views of a long, slender 

 specimen, X 4, hypotype, 11 8014. 



Ward Cove formation, north of the road, f mile southwest of Mount Eager 

 Church, Hogskin Valley, Powder Springs (T.V.A. 154-SW) Quadrangle, Tenn. 



C. Sphenotreta sulcata Cooper, new species 666 



(18) Brachial view of a small individual, X 4, paratype, 117100b; (19-23) respec- 

 tively posterior, brachial, pedicle, side, and anterior views of a large specimen, 

 X 4, holotype, 117190a. 



McLish formation (bed 45), West Spring Creek, sec. 6, T. 2 S., R. 1 W., 

 Murray County, Okla. 



