152 Cincinnati Society of Natural History 



Description of Plate II. 



Fig. 1 — Anonychia Hanaganensis, Foerste — A, cast of in- 

 terior of left valve, indicating the width of the hinge area. B, 

 cast of the right valve. About two miles north of Flanagan, in 

 the basal beds of the Cynthiana formation. 



Fig. 2 — Lingula cincinnatiensis, Hall and Whitfield — Fair- 

 mount division of the Maysville formation, Cincinnati, Ohio. 



Fig. 3 — Lingula cf. cincinnatiensis — Railroad cut 59.1 miles 

 from Ludlow. 



Fig. 4 — Bellerophon rogcrsensis — A, B, dorsal views, pre- 

 sented to indicate the low dorsal elevation presented by the casts 

 of the interior. C, lateral view of the cast of the interior. No 

 specimens preserving accurately the form of the aperture have 

 been found. Railroad cut 59.1 miles from Ludlow. 



Fig. 5 — Strophomena hallie, Miller — A, brachial valve. B, 

 interior of brachial valve. Railroad cut 51.3 miles from Ludlow. 



Fig. 6 — Clitamhonites rogersensis, Foerste — A, B, pedicel 

 valves; railroad cut 54.5 miles from Ludlow. C, D, interiors of. 

 brachial valves; north of Rogers Gap, probably at 59.1 miles from 

 Ludlow. 



Fig. 7 — Lifigula cf. procteri, Ulrich — Brachial valve, inter- 

 ior. Railroad cut 55.8 miles from Ludlow. 



Fig. 8 — Lingula zuhitHeldi, Ulrich — Brachial valve, interior. 

 Railroad cut 57.5 miles from Ludlow. 



Fig. 9 — Arthraria cf. hiclavata, Miller — Railroad cut 59.1 

 miles from Ludlow. 



Fig. 10 — Protoayga obsoleta — A, brachial valve. B, pedicel 

 valve. Two miles south of Millersburg, immediately south of the 

 bridge crossing the railroad, at the top of the C oluninaria zones in 

 the lower part of the Cynthiana formation. 



48 



