﻿1200 SMITHSONIAN MISCELLANEOUS COLLECTIONS VOL. I27 



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 a large complete specimen, X 2, paratype, 123258b; (28-30) anterior, posterior, 

 and exterior views of a large pedicle valve, X 2, paratype, 123258c. 



Oranda formation, on Virginia County Road 777, just west of the junction 

 of Virginia County Roads 617 = 910 and 777, \ mile north-northwest of Green 

 Mount Church, Broadway (15') Quadrangle, Va. 



D. Sozverbyella cava Cooper, new species 777 



(3 J -3S) Respectively brachial, posterior, anterior, pedicle, and side views of a 

 complete specimen, X 2, paratype, 117481c; (36) brachial view of a complete 

 specimen, X 1, holotype, 117481b; (40-42) anterior, posterior, and brachial 

 views, X 2, of the holotype ; (37-39) brachial, pedicle, and side views of a com- 

 plete, full-grown specimen, X 2, paratype, 117481a; (43) interior of the brachial 

 valve showing septa, muscle scars, and cardinalia, X 3, paratype, U748if. 



Martinsburg formation (part with Brongniartella and referable to Salona 

 formation), 0.15 mile north of Green Mount Church on Virginia County High- 

 way 617 = 910, Broadway (15') Quadrangle, Va. 



Plate 204 

 sowerbyella 



A. Sozverbyella medioplicata Cooper, new species 784 



(1-5) Respectively posterior, anterior, side, brachial, and pedicle views of a com- 

 plete specimen, X 2, holotype, 1 17498. 



Lincolnshire formation (top), Tumbling Run, ii miles southwest of Stras- 

 burg, Strasburg (15') Quadrangle, Va. 



B. Sozverbyella sp. 2 802 



(6, 12) Respectively X 1 and X 2 enlargements of the brachial side of a complete 

 specimen, figured specimen, 117545b; (7-11) respectively side, posterior, ante- 

 rior, brachial, and pedicle views of a large, complete specimen, X 2, figured 

 specimen, 117545a. 



Rodman member of Nealmont formation, 1 mile northeast of Bellefonte, Belle- 

 fonte (15') Quadrangle, Pa. 



C. Sowerbyella e.vimia Cooper, new species 781 



(13) Brachial view of a complete specimen with rounded cardinal extremities, 

 X ii paratype, 117492c; (14-18) respectively anterior, posterior, side, brachial, 

 and pedicle views, X 2, of the preceding specimen; (19) another adult specimen, 

 brachial view, X 1, paratype, 117492J ; (20) brachial view of a specimen showing 

 wrinkles on the hinge margin, X 2, paratype, 117492k; (21, 22) pedicle and 

 brachial view of a large specimen, X 2, holotype, 117492a; (29) posterior of the 

 preceding specimen, X 2, showing the interareas and cardinal process; (23-27) 

 respectively brachial, side, pedicle, posterior, and anterior views of a large speci- 

 men, X 2, paratype, H7492d; (28) brachial view of a medium-sized specimen 

 showing the ornamentation, X 2, paratype, 117492b; (30, 31) respectively X 1 

 and X 2 enlargements of a brachial interior, showing the cardinalia, paratype, 

 117492P; (32) another brachial interior of a specimen somewhat narrower than 

 the preceding, X 2, paratype, U7492f; (33) interior of a large brachial valve 

 showing papillose interior, septa, and cardinalia, X 3, paratype, H7492n. 



Martinsburg formation (part with Brongniartella and referable to the Salona 

 formation), on Virginia County Highway 617 = 910, 0.15 mile north of Green 

 Mount Church, Broadway (15') Quadrangle, Va. 



