﻿1034 SMITHSONIAN MISCELLANEOUS COLLECTIONS VOL. 127 



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

 rangle, Ala. 



B. Lingulella lirata Cooper, new species 201 



(2, 3) Interior of imperfect pedicle valve, respectively X 6 and X 8, showing 

 apical structures, paratype, 116761a; (4) posterior of the brachial valve showing 

 the apical structures, X 8, paratype, 116761b. 

 Horizon and locality same as preceding. 



C. Schisotreta willardi Cooper, new species 281 



(5) Fragment showing the apical foramen of the pedicle valve, X 5. paratype, 

 n68o6g. 

 Horizon and locality same as preceding. 



D. Obohis ? sp. 4 • x 93 



(6, 7) Interior and exterior of an imperfect specimen, X 4, figured specimen, 

 116792c; (8) exterior of same specimen, X 8, showing rows of pores. 

 Horizon and locality same as preceding. 



E. Westonia superba Cooper, new species 209 



(9, 10) Exterior and interior of the brachial valve, X 4, showing ornamentation 

 and apical structures, holotype, 116780b. 

 Horizon and locality same as preceding. 



F. Pachyglossa dorsiconvexa Cooper, new species 225 



(11) Exterior and side view of the brachial valve, showing the strong convexity, 

 X 2, holotype, 116758a. 

 Horizon and locality same as preceding. 



G. Glossella papulosa Cooper, new species 229 



(12, 13) Exterior and interior views of the brachial valve, X 4, showing apical 

 structures, paratype, n6787d; (14) fragment showing papillae on exterior, X 10, 

 paratype, 1167876. 



Horizon and locality same as preceding. 



H. Trematis elliptopora Cooper, new species 271 



(15, 16) Exterior and interior of the pedicle valve showing the pedicle notch, X 3, 

 paratype, n68o9d; (17, 20) exterior and interior of an imperfect brachial valve, 

 X 4, showing pores and apical structures, holotype, 116809c; (18, 19) same views 

 of another fragmentary brachial valve showing apical structures, X 5, paratype, 

 116809a; (21) apical view of another brachial valve showing smooth apex, X4 

 (specimen lost). 

 Horizon and locality same as preceding. 



I. Trematis ? spinosa Cooper, new species 274 



(22, 23) Exterior and interior of the brachial valve showing the spines clustered 

 at the apex, respectively X6 and X 10, holotype, 116810; (24) interior of an- 

 other brachial valve showing apical plate and spines, X 10 (specimen lost). 

 Horizon and locality same as preceding. 



J. S pinilingula intralamellata Cooper, new species 210 



(25, 26) Exterior views of two brachial valves showing the lamellose and spinose 

 ornamentation, X 10, respectively holotype, 116784a, and paratype, 116784b; 

 (27) small pedicle valve seen from the exterior, X 6, paratype, 116784c; (28) 

 pedicle valve from the exterior X 6, paratype, n6784d; (29, 30) interior of the 

 apical ends of the pedicle valve, X 10, showing deep pedicle groove and bound- 

 ing plates, paratypes, 116784c, n6784f ; (31, 32) interior views of the brachial 

 valve, X 10, showing apical plate, paratypes, n6784g and 116784b. 

 Horizon and locality same as preceding. 



