Rhyn. 



896 



Rhynchonella oblata, Hall. 10th Regts. Kt. 1857. Pal. 



N. Y. Vol. 3, 1859, 1861, p. 439, plate 102, fig. 2 a, cast, front 

 view of young one, showing broad shallow sinus; J, another 

 cast, ventral side, with muscular area, and ramifying vascular 

 impressions (not very exactly drawn); <?, d^ dorsal and cardi- 

 nal views of same ; radiating striae preserved on lower half of 

 cast. Oriskany sandstone^ Albany Co., N. Y. — In Pennsylva- 

 nia, found by White, at Grove Bro's. tunnel, Montour Co. 

 (G7, p. 86, 297). VIL 



Rhynchonella orhicularis. See Stenoschisma orbiculare. 



riiig. 



Rhynchonella orientalis, Billings. Oanad. Nat. and Geol. 



'^^t. X. A ^^ ^^1- ^' ^^^^- ^^^^' Canada, 1863, 



page 126, fig. 51, from difi'erent 

 views of two specimens, from the 

 Ghazy limestone formation. Ilh, 



G-eoi Cay^dcx., ^ i^^j^ 



Rhynchonella osagensis. See R. uta. XIII. 

 Rhynconella ottumwa^ near R. uta. XIII. 



