﻿1 154 SMITHSONIAN MISCELLANEOUS COLLECTIONS VOL. I27 



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 valve, X 4, paratype, 117300c; (57) imperfect brachial interior showing median 

 ridge and muscle scars, X 3, paratype, 1173001; (58) brachial interior showing 

 cardinalia, X 4, paratype, H7300g; (59) posterior part of a large brachial valve 

 showing the adult cardinalia, X 4, paratype, 11730011; (60, 61) two small 

 brachial valves showing muscle scars and genital markings, X 4, paratypes, 

 H730oi, 117300J. 

 Horizon and locality same as A above. 



G. Eremotrema biconvexum Cooper, new species 960 



(62) Imperfect pedicle interior showing muscle scars and pallial marks, X 3, 

 paratype, 1 17349. 



Horizon and locality same as E above. 



Plate 147 

 Reuschella 



A. Reuschella cf. R. americana Cooper, new species 976 



(1) Exterior of the pedicle valve, X I, figured specimen, 117346a; (2) plasticine 

 replica of the brachial valve, X 1, prepared from figured specimen, 117346b; 

 (3) impression of the pedicle interior, X I, figured specimen, 117346c; (4, 5) 

 respectively X I and X 2 views of a plasticine replica of the brachial cardinalia, 

 prepared from mold, figured specimen, H7346d; (6) impression from which the 

 preceding was prepared, X2; (7) impression of the brachial interior, X 2, 

 figured specimen, 117346c 

 Jacksonburg formation, \\ miles south of Annandale, Hunterdon County, N. J. 



B. Reuschella americana Cooper, new species 976 



(8) Exterior of the brachial valve, X 1, plasticine replica of mold, paratype, 

 no84of ; (9) plasticine replica of the pedicle exterior, X 1, holotype, mold 

 110840b; (10) plasticine replica of another pedicle exterior, X 1, paratype, mold 

 110840a; (11) plasticine replica of the brachial exterior, X 1, paratype, mold 

 110840W; (12) impression of the pedicle interior, X I, paratype, 110840c; (13) 

 rubber replica of the pedicle interior showing the dental plates, X 1, prepared 

 from paratype, 110840c; (14) impression of the pedicle interior, X I, showing 

 the slots of the dental plates and the muscle area, counterpart of holotype, 

 110840b; (15) enlargement of an impression of the pedicle muscle area, X 2, 

 paratype, no84od; (16) impression of the brachial interior, X 1, paratype, 

 no84oi; (17) posterior part of preceding enlarged X 2 to show details of the 

 impression of the cardinalia; (18) rubber replica of the cardinalia, X 2, prepared 

 from the preceding mold; (19) impression of the interior of another brachial 

 valve, X Ij paratype, no840g; (20) rubber replica of the cardinalia of the 

 preceding mold, X 2. 



Oranda formation, 0.6 mile northwest of Linville Station, Broadway (15') 

 Quadrangle, Va. 



Plate 148 



Genus and species undet., Phragmorthis, Reuschella 



A. Genus and species undet 1006 



(1, 2) Respectively X2 and Xi enlargements of an impression of the pedicle 

 interior, figured specimen, 117068b; (3, 4) respectively X 1 and X2 enlarge- 

 ments of an impression of the brachial interior, figured specimen, 117068a. 



Athens formation (base), 2,\ miles south-southeast of Riceville, Calhoun 

 (T.V.A. 125-SW) Quadrangle, Tenn. 



B. Phragmorthis buttsi Cooper, new species 510 



(5) Exterior of the pedicle valve, X 3, paratype, 116947b; (6) pedicle interior 



