﻿1214 SMITHSONIAN MISCELLANEOUS COLLECTIONS VOL. I27 



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F. Dactylogonia geniculate Ulrich and Cooper 827 



(12, 13) Pedicle and brachial views of a complete specimen damaged on the ex- 

 tremities, X 1, hypotype, 1 17587. 



Arline formation, Porterfield Quarry, 5 miles east of Saltville, Maccrady 

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



G. Leptellina pule lira Cooper, new species 753 



(14) Interior of brachial valve, X 3, showing cardinalia and visceral region, 

 para type, 123284. 



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

 Quadrangle, Ala. 

 H. Dactylogonia sp. 2 838 



(15) Impression of the pedicle interior showing the muscle scars, X 2, figured 

 specimen, 117607a. 



Botetourt formation, junction of Virginia Highways 731 and 724, 2 miles 

 northwest of Brownsburg, Lexington (15') Quadrangle, Va. 



I. Dactylogonia incrassata (Hall) 828 



(16, 17) Brachial and pedicle views of a complete specimen, X 2, hypotype, 

 A.M.N.H. 25049/1; (18) side view, X I, hypotype, 117589a; (19) posterior of 

 a complete specimen showing the pseudodeltidium and chilidium, X 3, hypotype, 

 117589b; (20) interior of the pedicle valve, X 2, hypotype, A.M.N.H. 25049/2; 

 (21 ) interior of the brachial valve showing floor plates and cardinalia, X 3, 

 hypotype, A.M.N.H. 25049/3; (22) another brachial interior showing floor 

 plates, X 2, hypotype, 117589c; (23) posterior view of the preceding specimen, 

 X 3, showing cardinal process and floor plates. 



Crown Point formation, Sloop Bay, Valcour Island, Lake Champlain, Platts- 

 burg (15') Quadrangle, N. Y. 



J. Dactylogonia incrassata (Hall) 828 



(24) Exterior view of the pedicle valve, X I, hypotype, Carnegie Mus. 5446; 

 (25-27) side, anterior, and normal views, X 2, of the preceding specimen. 

 Horizon and locality same as preceding. 



Plate 220 

 Dactylogonia, Limbimurina 



A. Dactylogonia obtusa Cooper, new species 832 



(1, 3, 4) Brachial, side, and pedicle views of a complete specimen, X I, holotype, 

 1 1 7594L 



Lincolnshire formation, Clinch Valley at Shiloh Church, near center northwest 

 subquad., Pressmens Home (T.V.A. 171-NE) Quadrangle, Tenn. 

 (2, 5) Brachial and pedicle views of a complete specimen, X I, paratype, 1 17595. 

 Lincolnshire formation, Marcem Quarry, 2 miles west of Gate City, Gate City 

 (T.V.A. 188-NE) Quadrangle, Va. 



B. Dactylogonia incrassata (Hall) 828 



(6, 7) Brachial and pedicle views of a complete specimen, X 2, hypotype, 117593a; 

 (8) brachial interior, X 3, showing floor plates and cardinalia, hypotype, 117593b. 

 Crown Point limestone, Sloop Bay, Valcour Island, Lake Champlain, Platts- 

 burg (15') Quadrangle, N. Y. 



C. Dactylogonia magna Cooper, new species 829 



(9-12) Respectively exterior, side, normal, and brachial views, X i, of the holo- 

 type, 117591a; (16) brachial view of the holotype, X I2, showing ornamentation 

 and pseudodeltidium; (13-15) posterior, brachial, and pedicle views of a young 

 specimen, X 2, paratype, 117591b; (17) pedicle interior showing form of muscle 

 area, X 2, paratype, 11 7591 d. 



