﻿PART II CHAZYAN AND RELATED BRACHIOPODS — COOPER I185 



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E. Dactylogonia strasbitrgensis Cooper, new species 835 



(15) Exterior of a pedicle valve, X 1, holotype, 117600c; (16) same view as pre- 

 ceding, X 2, to show details of ornamentation; (17, 18) side and pedicle views 

 of another specimen, X l> paratype, 117600a; (19) a somewhat deformed pedicle 

 valve, X 1, paratype, 117599a. 



Edinburg formation (Cyrtonotclla bed), ravine opposite switch i mile east 

 of Strasburg Junction, Strasburg (15') Quadrangle, Va. 



F. Eremotocchia silicica Cooper, new species 515 



(20) Interior of the pedicle valve showing the long dental plates, small teeth, and 

 crural fossettes, X 2, paratype, ii7o65g; (21) interarea of another pedicle valve 

 showing pseudodeltidium, foramen, and teeth, X 3, paratype, 117065b; (22) exte- 

 rior of an immature pedicle valve showing large foramen and somewhat tubular 

 beak, X 2, paratype, H7o65n; (23) posterior view of the brachial valve showing 

 lobate cardinal process and short brachiophores (note also smooth umbonal 

 region), X 3, paratype, 117065-I; (24, 25) side and exterior views of the pedicle 

 valve, X I) paratype, 117065J. 



Pratt Ferry formation, 0.2 mile southeast of Pratt Ferry, Blocton (15') Quad- 

 rangle, Ala. 



G. Ancistrorhyncha crassa Cooper, new species 623 



(26) Brachial view of a complete specimen, X h paratype, 117208a; (27-31) 

 respectively side, anterior, brachial, pedicle, and posterior views, X 2, of the 

 preceding specimen. 



Ridley formation, on Tennessee Highway 28, 0.6 mile south of Chappel Hill 

 Methodist Church, 1 mile south of junction with Tennessee Highway 8, Daus 

 (T.V.A. 104-SW) Quadrangle, Tenn. 



H. Ptychoglyptus virginiensis Willard 818 



(32) Exterior of a plaster replica, X 2, of the holotype, original M.C.Z. 8626; 

 (33) plaster replica of the exterior of the brachial valve, X 2, original paratype, 

 M.C.Z. 8627. 



Effna formation, McNutt Quarry, 12 miles southwest of Bland, Burkes 

 Garden (15') Quadrangle, Va. 



I. Ptychoglyptus virginiensis Willard 818 



(34) Exterior of a brachial valve, X 2, hypotype, 1 17397. 



Effna formation (massive limestone calcarenite), in base of black shale or 

 top of Arline formation, on the south side of Tennessee Highway 66A, \ mile 

 northeast of St. Clair, Bulls Gap (T.V.A. 171-SE) Quadrangle, Tenn. 



Plate 187 

 Leptellina 



A. Leptellina primaria Cooper, new species 752 



(1-4) Respectively brachial, posterior, anterior, and side views, X 1, of the holo- 

 type, H744id; (5) brachial view, X 2, of the holotype; (6) small slab showing 

 a pedicle exterior and a brachial interior, X 2, paratypes, 117441b, 117441c; (7) 

 brachial interior, X 2, showing elevated visceral disk and brachial processes, 

 paratype, 117441a. 



Crown Point formation (A18-A23 of Raymond), south end of Valcour 

 Island, Lake Champlain, Plattsburg (15') Quadrangle, N. Y. 



B. Leptellina sp. 1 759 



(8) Brachial interior of a large species, the largest yet found, X I, figured 

 specimen, 1 17458. 



Edinburg formation (Cyrtonotella zone), about \ mile west of Strasburg, 

 Strasburg (15') Quadrangle, Va. 



