﻿PART II CHAZYAN AND RELATED BRACHIOPODS — COOPER II3I 



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D. Oligorhynchia inexpectata Cooper, new species 661 



(24) Exterior of the brachial valve, X 3, paratype, 117203b; (25) pedicle exte- 

 rior, X 3, holotype, 117203a. 



Red Knobs formation (between the Athens cobbly beds and the marble), road 

 along Hiwassee River, i^ miles southeast of Charleston, Calhoun (T.V.A. 

 125-SE) Quadrangle, Tenn. 



E. Oligorhynchia subplana Cooper 662 



(26, 27, 31) Side, anterior, and pedicle views of a small and elongate specimen, 

 X 3, hypotype, 117201b; (28-30) side, brachial, and anterior views of a specimen 

 larger than the preceding, X 3, hypotype, 117201a. 



Sevier formation, \ mile northeast of Miser, Louisville (T.V.A. 138-SE) 

 Quadrangle, Tenn. 



F. Sphcnotreta acutirostris ( Hall ) 664 



(3 2 -35) Respectively brachial, pedicle, side, and anterior views of a complete speci- 

 men, X 4, hypotype, Carnegie Mus. 5439 ; (36, 37) brachial and pedicle views 

 of an imperfect specimen, X 4, hypotype, Carnegie Mus. 5440. 



Crown Point formation, McCullough's Sugar Bush, Chazy, Rouses Point 

 (15') Quadrangle, N. Y. 

 (38) Pedicle view of a large specimen, X I, hypotype, 118015. 



Crown Point formation, near Fort Cassin, Port Henry (15') Quadrangle, Vt. 



G. Dorytreta bella Cooper, new species 667 



(39-43) Respectively pedicle, anterior, side, posterior, and brachial views of a 

 perfect specimen, X 4, holotype, 117191a. 



McLish formation (upper), roadside ditch in NWi sec. 18, T. 2 N., R. 5 E., 

 Pontotoc County, Okla. 



H. Rostricellula cuneata Cooper, new species 637 



(44, 45) Pedicle and brachial views of an imperfect specimen, X 4, holotype, 

 117218a. 



Bromide formation (Mountain Lake member), west side U. S. Highway yy, 

 sec. 25, T. 2 S., R. 1 E., 2 to 3 miles north of Springer, Carter County, Okla. 



I. Sphenotreta cuneata Cooper, new species 665 



(46-50) Respectively anterior, pedicle, side, brachial, and posterior views of a 

 complete specimen, X 4, holotype, 117189a; (51) brachial exterior, X 4, para- 

 type, H7i89g; (52) another brachial exterior wider than the preceding, X 4. 

 paratype, H7i89d; (53) pedicle exterior, X 4, paratype, 117189b; (54) brachial 

 and pedicle valve on slab, X 4, paratype, 117189c. 



Sevier formation, § mile southeast of Hambright Mine, 8 miles south of 

 Cleveland, Tenn. 



J. Dorytreta ? reversa Cooper, new species 668 



(55-59) Respectively posterior, brachial, side, anterior, and pedicle views of a com- 

 plete specimen, X 3, holotype, 117194; (60) brachial view, X 4, of holotype; 

 (61) brachial view, X 1, of holotype. 



Lincolnshire formation (Hogskin member), 0.4 mile east-northeast of Red 

 Hill, 4^ miles west-southwest of Thorn Hill, Avondale (T.V.A. 162-SW) Quad- 

 rangle, Tenn. 



Plate 125 

 Oligorhynchia 



A. Oligorhynchia subplana gibbosa Cooper 662 



(1-3) Side, brachial, and pedicle views of a complete specimen, X I, hypotype, 

 90751 ; (4-8) respectively anterior, posterior, brachial, side, and pedicle views, 

 X 4, of the preceding. 



