40 Cincinnati Society of Natural History. 



DESCRIPTION OF PLATE II. 



Fig. 1 — Camarotoechia pisa ? Hall and Whitfield, casts of in- 

 teriors : A, brachial valve. B, lateral view. Martins, Kentucky. 

 West Union bed. Miagnified 3 diameters. 



Fig. 2 — Spirifer harinensis, sp. nov., casts of interiors : A, bra- 

 chial valve. B, pedicel valve. Harin Hill, four miles west of Valley, 

 in Lewis county, Kentucky. Magnified 3 diameters. West Union bed. 



Fig. 3 — Camarotoechia congruens, sp. nov. A, brachial valve. 

 B, line indicating the convexity of the brachial valve. Between Pop- 

 lar Flats and Martins, in Lewis county, Kentucky. In upper part ol 

 Alger clay division of the West Union bed. Magnified 4 diameters. 



Fig. 4 — Camarotoechia acinus-subrhomboidea, var. nov. Pedicel 

 valve. Martins, Lewis county, Kentucky. West Union bed. Magni- 

 fied 3 diameters. 



Fig. 5 — Spirifer repertus, sp. nov. Brachial valve. Harin Hill, 

 four miles west of Valley, in Lewis county, Kentucky. West Union 

 bed. 



Fig. 6 — Atrypa rugosa. Hall. Pedicel valve. Quarry in south- 

 eastern part of West Union, Ohio, in West Union bed. 



Fig. 7 — Spirifer nanus, sp. nov. Brachial valve. At the spring 

 on Big Salt Lick creek, one mile south of Glen Springs, in Lewis 

 county, Kentucky, in the West Union bed. 



Fig. 8 — Spirifer radiatus, Sowerby. Pedicel valve, cast of inter- 

 ior. Martins, Kentucky, in the West Union bed. 



Fig. 9 — Trematospira camura-pauciplicata, var. nov. Pedicel 

 valve. A, natural size. B, magnified 3 diameters. Quarry in south- 

 eastern part of West Union, Ohio, in West LInion bed. 



Fig. 10 — Spirifer radiatus-obsoletus, var. nov. A, brachial valve. 

 B, lateral view. C, pedicel valve, cast of interior. At the spring on 

 Big Salt Lick creek, a mile south of Glen Springs, in Lewis county, 

 Kentucky. West Union bed. 



Fig. 11 — Stropheodonta (Brachyprion) planus, sp. nov. Casts 

 of interiors : Pedicel valves. At the spring on Big Salt Lick creek, 

 a mile south of Glen Springs, in Lewis county, Kentucky. West 

 L'nion bed. 



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