594 BULLETIN 92, UNITED STATES NATIONAL MUSEUM. 



Hebertella occlden tails Hall. 



Orthis occidental Hall, Pal. New York, 1, 1847, p. 127, pi. 32A, fig. 2; pi. 32B, 

 fig. 1; 12th Rep. New York State Cab. Nat. Hist., 1859, p. 72. Billings, Geol. 

 Canada, 1863, p. 210, fig. 210. 

 Hebertella occidentalis Foerste, Bull. Sci. Lab. Denison Univ., 14, 1910, p. 53, 



pi. 2, figs. 1, 2. 

 Maysville and Richmond: Maysville, etc., Kentucky; Cincinnati, Ohio, and 



vicinity; Oxford, etc., Ohio; Indiana. 

 Observation. See also H. alveata Foerste. 



Hebertella occidentalis slnuata Hall. 



Orthis sinuata Hall, Pal. New York, 1, 1847, p. 128, pi. 32B, fig. 2. Miller, Cin- 

 cinnati Quart. Jour. Sci., 2, 1875, p. 36. Shaler, Fossil Brach. Ohio Valley, 

 1876, pi. 8. Lesley, Geol. Surv. Pennsylvania, Rep. P 4, 1889, p. 533, figs. 



Orthis occidentalis var. sinuata Meek, Pal. Ohio, 1, 1873, p. 98. 



Hebertella sinuata Hall and Clarke, Pal. New York, 8, pt. 1, 1892, p. 222, pi. 5A, 

 figs. 1-8. Hayes and Ulrich, U. S. Geol. Surv., Folio 95, ill. sheet, 1903, 

 fig. 17. Cumings, Amer. Jour. Sci. (4), 15, 1903, p. 34, footnote. Grabau 

 and Shimer, N. A. Index Fossils, 1, 1907, p. 256, fig. 306. Foerste, Bull. Sci, 

 Lab. Denison Univ., 16, 1910, p. 52, pi. 2, fig. 5. 



Hebertella occidentalis sinuata Schuchert, Bull. U. S. Geol. Surv., 87, 1897, p. 

 229. Cumings, 32d Ann. Rep. Dep. Geol. Nat. Res. Indiana, 1908, p. 908, 

 pi. 34, figs. 3-3e. 



Maysville and Richmond: Cincinnati, Ohio, and vicinity; Kentucky; Ten- 

 nessee; Indiana; etc. 



Plesiotype.C&t. No. 35398, U.S.N.M. (Hayes and Ulrich). 



Hebertella (Eridorthis) rogersensis (Foerste). 



Plectorthis (Eridorthis) rogersensis Foerste, Bull. Sci. Lab. Denison Univ., 14, 



1909, p. 223, pi. 14, figs. 4a-b. 

 Trenton (Upper): Rogers Gap, Kentucky. 

 Observation. Probably only a variety of H. nicklesi. 



HEBERTELLA SCOVILLI Hall and Clarke. See Plectorthis (Austinella) scovilli. 

 HEBERTELLA SINUATA Hall and Clarke. See Hebertella occidentalia sinuata. 



Hebertella subjugata (Hall). 



Orthis subjugata Hall, Pal. New York, 1, 1847, p. 129, pi. 32C, fig. 1. Owen(?), 

 Geol. Surv. Wisconsin, Iowa, Minnesota, 1852, pi. 2B, figs. 4, 5. Emmons, 

 Amer. Geol., 1, pt. 2, 1855, p. 196. 



Hebertella subjugata Foerste, Bull. Sci. Lab. Denison Univ., 16, 1910, p. 54, pi. 

 2, fig. 8; ibid., 17, 1912, p. 129, pi. 8, fig. 6. 



Trenton- Richmond: Cincinnati, Ohio, and vicinity; Indiana; Kentucky; Ten- 

 nessee; Virginia, etc. 



Plesiotypes.C&t. Nos. 17885, 17891, U.S.N.M. 



Hebertella vulgaris Raymond. 



Orthis perveta Billings (not Conrad), Canadian Nat. Geol., 4, 1859, p. 434. 

 Orthis subaequata Billings (not Billings, 1856), Canadian Nat. Geol., 1859, p. 



434. 



Orthis gibbosa Billings, Canadian Nat. Geol., 4, 1859, p. 434. 

 Hebertella vulgaris, Raymond, Ann. Carnegie Mus., 3, 1906, p. 501; ibid., 7, 



no. 2, 1911, p. 242, pi. 36, figs. 2-5, figs. 15-18, 22. 

 Chazyan: Chazy, Valcour Island, etc., New York (Day Point Valcour); Canada 



(Ay liner); East Tennessee (Lenoir). 



