592 BULLETIN 92; UNITED STATES NATIONAL MUSEUM. 



Hebertella (Glyptorthls) crispata — Continued. 



Dalmanella crispata Hall and Clarke, Pal. New York, 8, pt. 1, 1892, p. 224.— 

 Glyptorthls crispata Foerste, Bull. Sci. Lab. Denison Univ., 17, 1914, p. 258. 

 Cincinnatian (Pulaski): Lorraine, etc.. New York. 



Hebertella daytonensis (Foerste), 



Crthis daytonensis Foerste, Bull. Sci. Lab. Denison Univ., 1885, p. 87, pi. 13, 



figs. 13, 20, 21. 

 Hebertella daytonensis Hall and Clarke, Pal. New York, 8, pt. 1, 1892, p. 222. 

 Orthis (Hebertella) daytonensis Foerste, Geol. Ohio, 7, 1895, p. 575, pi. 25, figs. 



13, 20, 21. 

 Upper Medinan (Brassfield): Dayton, etc., Ohio. 



Hebertella exfolla.ta Raymond. See Plectoithis exfoliata. 



Hebertella (Schizonema) fasciata Foerste. See Orthostrophia (Schizoramma) 

 fasciata. 



Hebertella fausta (Foerste). 



Orthis fausta Foerste, Bull. Denison Univ., 1, 1885, p. 85, pi. 13, figs. 15, 16. 

 Hebertella fausta Hall and Clarke, Pal. New York, 8, pt. 1, 1892, p. 222. 

 Orthis (Hebertella) fausta and var. squamosa Foerste, Geol. Ohio, 7, 1895, pp. 



573, 574, pi. 25, figs. 15a-15d, 16a, 16b; pi. 37A, figs. 19a, 19b. 

 Upper Medinan: Dayton, Ohio (Brassfield); Ontario (Cataract). 



Hebertella (Schizonema) fissiplica Foerste. See Orthostrophia (Schiroramma) 

 fissiplica. 



Hebertella (Schizonema) fissistriata Foerste. See Orthostrophia (Schizoramma) 

 fissistriata. 



Hebertella frankfortensis Foerste. 



Orthis frankfortensis James, Cat. Lower Sil. Foss. Cincinnati Group, 1871, p. 10 



(nom. nud.). 

 Hebertella frankfortensis Foerste, Bull. Sci. Lab. Denison Univ., 14, 1909, p. 



318, pi. 7, figs. 11a, b. 

 Orthis borealis Meek, Pal. Ohio, 1, 1873, p. 101, pi. 8, fig. 4.— Miller, Cincinnati 



Quart. Jour. Sci., 2, 1875, p. 28.— Chamberlin, Geol. Wisconsin, 1, 1883, p. 



155, fig. — Lesley (part), Geol. Surv. Pennsylvania, Rep. P 4, 1889, p. 510, 



figs.— Netteh'oth, Kentucky Fossil Shells, Mem. Kentucky Geol. Surv., 1889, 



p. 36, pi. 34, figs. 14-20. 

 Orthis (Hebertella) borealis Winchell and Schuchert, Geol. Minnesota, 3, 1893, 



p. 433, fig. 33.— Schuchert, Proc. U. S. Nat. Mus., 22, 1900, p. 157. 

 Hebertella borealis Hall and Clarke, Pal. Now York, 8, pt. 1, 1892, p. 222.— 



Hayes and Ulrich, U. S. Geol. Surv. Folio 95, ill. sheet, 1903, figs. 36, 37.— 



Grabau and Shimer, N. A. Index Fossils, 1, 1907, p. 254, fig. 304a-c. — Bassler, 



Bull. Virginia Geol. Surv., 2a, 1909, p. 183, figs. 11, 12, 20. 

 Trenton: Frankfort, etc., Kentucky (Wilmore); Columbia, et/C.. Tenneesee; 



Virginia (Bigby); Wykofi, Minnesota (Pi-osser); Baffin Land. 

 Plesiotypes.—CsA. Nob. 48572, 51189, U.S.N.M. 



Hebertella imperator (Billings). 



Orthis imperator Billings, Canadian Nat, Geol., 4, 1859, p. 435, figs. H-13; Geol. 



Canada, 1863, p. 129, fig. 55.— Lesley, Geol. Surv. Pennsylvania, Eep. P 4, 



1889, p. 518, figs. 

 Hebertella imperator Hall and Clarke, Pal. New York, 8, pt. 1, 1892, p. 222.— 



Raymond, Annals Carnegie Mus., 7, 1911, p. 243, pi. 30, figs. 6, 7. 

 Ohazyaiu (Aylmer): Hawkeebury aoad Oorawall, Canada, 



