﻿IO76 SMITHSONIAN MISCELLANEOUS COLLECTIONS VOL. 127 



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 of the highway, at the base of the mountain, i£ miles northwest of Newport, 

 Giles County, Va. 

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

 plete specimen, X I, hypotype, 110302a; (22) pedicle view, X 2, of same speci- 

 men; (25) brachial interior, X 2, hypotype, H030id; (24) pedicle interior, X 2, 

 hypotype, 110301b; (26) posterior of brachial interior showing cardinalia, X 3, 

 hypotype, 110301c. 



Elway formation, cut on east side of U. S. Highway 25W, 4.7 miles south of 

 Clinton, Powell Station (T.V.A. 137-SE) Quadrangle, Tenn. 

 (23) Pedicle interior showing pallial trunks, X 2, hypotype, 110309a. 



Elway formation, Speers Ferry, Clinchport (T.V.A. 188-NW) Quadrangle, 

 Va. 



Plate 58 

 Dinorthis 



A. Dinorthis venusta Cooper, new species 401 



(1) Impression of the pedicle interior, prepared by burning shell, X I, paratype, 

 116978c; (2) exterior of the brachial valve, X l, paratype, 116978b; (3) exte- 

 rior of the pedicle valve, X 1, paratype, 116989a. 

 Red Knobs formation, near fault, 3 miles northwest of Madisonville, Tenn. 



B. Dinorthis quadriplicata Willard = D. transversa Willard 398 



(4, 5) Respectively side and pedicle views of a complete specimen, X I, hypotype, 

 116976b; (6-10) respectively brachial, anterior, side, posterior, and pedicle views 

 of a nearly perfect specimen, X I, hypotype, 116976a. 



Benbolt formation, 0.2 mile south of the middle fork of Moccasin Creek, 

 \\ miles due south of Hansonville, Hansonville (T.V.A. 205-SW) Quadrangle, 

 Va. 



C. Dinorthis transversa Willard 398 



(11-15) Respectively brachial, pedicle, side, anterior, and posterior views of a 

 nearly perfect specimen, X 1, hypotype, 1 16977; (17-21) respectively brachial, 

 pedicle, side, anterior, and posterior views of another nearly perfect, large speci- 

 men, X 1, hypotype, 111800a; (24) pedicle view of a smaller specimen, X 1, 

 hypotype, 111800b. 



Benbolt formation, south side of Mount Hagan School, Hilton (T.V.A. 

 197-NW) Quadrangle, Va. 

 (16) Large pedicle valve, X l, hypotype, 116976c. 



Horizon and locality same as preceding. 

 (22, 23) Pedicle and brachial views of a complete but imperfect specimen, X I, 

 hypotype, 11 1799. 



Shippensburg formation (Pinesburg member — Echinosphaeritcs beds), cut on 

 U. S. Highway 40, west side of Conococheague Creek, 7 miles west of Hagers- 

 town, Williamsport (15') Quadrangle, Md. 

 (25, 26) Respectively X 1 and X 2 enlargements of the pedicle interior, hypotype, 

 1 10370. 



Dryden formation, 100 yards west of the store, junction of Tennessee High- 

 way 33 and the Flint Creek road, Maynardville (T.V.A. 145-SE) Quadrangle, 

 Tenn. 

 (27) Brachial interior, X 2, hypotype, 1 16975. 



Benbolt formation, at the brick church i£ miles west-southwest of Rye Cove, 

 Clinchport (T.V.A. 188-NW) Quadrangle, Va. 



