﻿II06 SMITHSONIAN MISCELLANEOUS COLLECTIONS VOL. I27 



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 Effna-Rich Valley formations, Porterfield Quarry, 5 miles east of Saltville, 

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



D. Skenidioides cf. 5". perjectus Cooper, new species 499 



(18-22) Respectively anterior, pedicle, brachial, posterior, and side views of a com- 

 plete specimen, X 4, figured specimen, 117082c; (23) brachial interior, X 4, 

 figured specimen, 117082b. 



Bromide formation (Pooleville member), SE£ sec. 32, T. 2 S., R. 2 E., 3 miles 

 northeast of Springer, Carter County, Okla. 



E. Skenidioides oklahomensis Cooper, new species 498 



(24) Brachial interior, X 4, paratype, 118007c; (25) pedicle exterior, X 4, para- 

 type, 118007a; (26) brachial exterior, X 4, paratype, n8oo7d; (27) pedicle 

 interior, X 4, paratype, 118007b. 



Bromide formation (Mountain Lake member), slightly north of the middle of 

 sec. 32, T. 2 S., R. 2 E., 3 miles northeast of Springer, Carter County, Okla. 



F. Skenidioides platys Cooper, new species 500 



(28) Pedicle exterior, X 3, holotype, 1 17084. 



Little Oak formation, 600 feet east of the intersection of Cahaba Valley and 

 Helena roads, \ mile north of Pelham, Bessemer Iron District (15') Quad- 

 rangle, Ala. 



(29) Impression of the brachial interior, X 4. paratype, 117083a. 



Little Oak formation, 1 mile north of Pelham, Bessemer Iron District (15') 

 Quadrangle, Ala. 



G. Skenidioides halli ( Hall and Clarke) 495 



(30) Small slab showing numerous pedicle and brachial valves, X 3, hypotype, 

 II7074- 



Lebanon formation, Columbia, Tenn. 



H. Skenidioides anthonensis ( Sardeson) 49 1 



(31-35) Respectively side, anterior, posterior, brachial, and pedicle views, X 6, 

 hypotype, 24207a; (36) brachial exterior, X 4, hypotype, 48911a; (37) pedicle 

 exterior, X 4, hypotype, 4891 ib. 



Platteville formation, Minneapolis, Minn. 



Plate 99 



Ancistrorhyncha, Elasmothyris, Eremotoechia, Genus and species undet., Kullervo, 

 Mimella, Onychoplecia, Oxoplecia, Skenidioides, Tropidothyris 



A. Tropidothyris pentagona Cooper, new species 5°7 



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

 specimen, X 5, holotype, 117087a; (6-10) respectively pedicle, brachial, side, 

 anterior, and posterior views, X 5, paratype, 117087b; (11, 12) two views of the 

 pedicle interior showing the spondylium, ca. X 8, paratype, 1170876; (13, 14) 

 two brachial interiors in different positions and showing the median ridge, sup- 

 porting plates of the brachiophores, and brachiophores, ca. X 8, paratypes, 

 117087c, n7o87d. 



Pratt Ferry formation (lower 3 feet), 0.2 mile southeast of Pratt Ferry, 

 Blocton (15') Quadrangle, Ala. 



B. Kullervo sulcata Cooper, new species 5 2 9 



(15-18) Respectively apical, exterior, interior, and posterior views of the pedicle 

 valve showing the spondylium with 3 grooves, X 4, holotype, 11 701 7. 

 Horizon and locality same as preceding. 



C. Genus and species undet i°o6 



(19) Exterior of the pedicle valve, X ii figured specimen, 117067. 



