﻿1062 SMITHSONIAN MISCELLANEOUS COLLECTIONS VOL. 127 



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 Lower Sevier, £ mile northeast of Miser, Louisville (T.V.A. 138-SE) Quad- 

 rangle, Tenn. 

 (12, 13) Pedicle and brachial views of a larger complete specimen, X t, para- 

 type, 116897a; (14) same, X2; (15) brachial interior showing cardinalia, X 3, 

 paratype, 116897c; (16) same in posterior view, X 3, showing cardinal process. 

 Sevier shale, | mile north of Gooseneck, in southwest corner Louisville 

 (T.V.A. 138-SE) Quadrangle, Tenn. 



D. Cyrtonotella cf. C. magna Cooper, new species 322 



(17) Brachial exterior of a complete specimen, X I, figured specimen, 110353a; 

 (18, 19) brachial and posterior views, X 2, of the same specimen. 



Sevier formation, 2 miles southeast of Friendsville, Binfield (T.V.A. 139-NE) 

 Quadrangle, Tenn. 



E. Cyrtonotella bella ( Schuchert and Cooper) .519 



(20-23) Respectively posterior, brachial, side, and pedicle views of a complete 

 specimen, X 1, hypotype, 110348b; (24) another and larger specimen, X h hypo- 

 type, 110348a; (25) same view, X 2. 



Lincolnshire formation (Hogskin member), Maynardville Pike, 1.7 miles 

 north of Hall Crossroad, Fountain City (T.V.A. 146-SW) Quadrangle, Tenn. 



Plate 42 

 Nicolella, Orthambonites, Ptychopleurella 



A. Orthambonites minutus Cooper, new species 305 



(1, 2) Interior and exterior views of a brachial valve, X 4, paratype, 116883d; 



(3, 6) brachial and side views of a complete but small specimen, X 4, holotype, 

 116883c; (4) interior of pedicle valve, X 4, paratype, 116883a; (7) exterior, 

 X 6, of same; (5) exterior of a pedicle valve, X 4, paratype, 116883b; (8, 9) 

 exterior and interior of a large brachial valve, X 4, paratype, 116883c. 



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

 Murray County, Okla. 



B. Ptychopleurella porcia (Billings) 389 



(10, 11) Posterior and exterior views of a pedicle valve, X 1, holotype, G.S.C. 

 1044. 



St. Martin formation, Island of Montreal, Quebec, Canada. 



C. Ptychopleurella lamellosa (Raymond) 387 



(12) Brachial view of a silicified specimen, X 3, paratype, Y.P.M. 2706. 

 Valcour formation (Stromatocerium layers), Chazy, Rouses Point (15') 



Quadrangle, N. Y. 



D. Ptychopleurella rectangulata Cooper, new species 389 



(13) Interior of pedicle valve, X 3, paratype, 110101b; (14) pedicle exterior, X 3, 

 paratype, uoioid; (16) a large pedicle valve showing strong median rib, X 3» 

 paratype, iioioic; (17) brachial interior, X 3, paratype, noioie; (15, 18-21) 

 posterior, brachial, pedicle, anterior, and side views of a complete specimen, X 3, 

 holotype, 110101a. 



Effna-Rich Valley formations, Porterfield Quarry, 5 miles east of Saltville, 

 Maccrady (T.V.A. 218-NW) Quadrangle, Va. 



E. Ptychopleurella mediocostata Cooper, new species 387 



(22, 23) Posterior and interior views of a well-preserved pedicle valve showing 

 apical plate in both views, X 3, holotype, 110097a; (24) pedicle exterior showing 

 median rib, X 3. paratype, 110097b; (25, 27) brachial exterior and interior, X 3. 

 paratype, 110097c; (26) an unusually wide pedicle valve, exterior, X 3, para- 

 type, H0097d. 

 Horizon and locality same as preceding. 



