890 BULLETIN 92, UNITED STATES NATIONAL MUSEUM. 



Orthis emacerata Sardeson. See Dalmanella macrior. 



Orthis emacerata Hall. See Dalrnanella emacerata and D. emacerata brevicula. 



Orthis emacerata var. multisecta Meek. See Dalmanella multisecta. 



Orthis equivalvis Foerste. See Plectorthis aequivalvis. 



Orthis? erratica Hall. See Zjrgospira erratica. 



Orthis(?) eudocia Billings. 



Orthis Eudocia Billings, Pal. Fossils, 1, Geol. Surv. Canada, 1865, p. 83, fig. 76 



(adv. sheets, 1862). 

 Ozarkian? (Levis — erratics): Point Levis, Quebec. 



Orthis euryone Billings. 



Orthis Euryone Billings, Pal. Fossils, 1, Geol. Surv. Canada, 1865, p. 78, fig. 71 



(adv. sheets, 1862).— Hall and Clarke, Pal. New York, 8, pt. 1, 1892, pp. 



221, 228, pi. 5, fig. 4. 

 Orthis euryone? Matthew, Trans. Royal Soc. Canada, 1893, p. 101, pi. 7, fig. 5. 

 Canadian: Point Levis, Quebec (Levis — erratics); near St. John, New Brunswick 



(Bretonian— Div. C 3d). 



Orthis Evadne Billings. See Dalmanella(?) evadne. 



Orthis fasciata Hall. See Orthostrophia (Schizoramma) fasciata. 



Orthis fausta Foerste. See Hebertella fausta. 



Orthis (Hebertella) fausta var. squamosa Foerste. See Hebertella fausta. 



Orthis (Dalmanella) fertilis Bassler. See Dalmanella fertilis. 



Orthis fissicosta Hall. See Plectorthis fissicosta. 



Orthis fissiplica Roemer. See Orthostrophia (Schizoramma) fissiplica. 



Orthis flabella Hall. See Orthis fiabellites. 



Orthis flabella Foerste. See Orthis fiabellites militaris. 



Orthis fiabellites Foerste. 



Orthis flabellulum? Hall (not Sowerby), Geol. New York; Rep. 4th Dist., 1843, p. 



105, fig. 5. 

 Orthis flabellulum var. Hall, Pal. New York, 2, 1852, pp. 254, 255, pi. 52, figs. 6, 7. 

 Orthis flabellulum Billings, Canadian Nat. Geol., 1, 1856, p. 136, pi. 2, fig. 6. 

 Orthis flabella Hall, 2d Ann. Rep. New York State Geol., 1883, pi. 34, figs. 41, 42; 



p. 35, figs. 6-8. 

 Orthis calligramma Foerste (not Dalman), Proc. Boston Soc. Nat. Hist., 24, 1890, 



p. 30S, pi. 6, figs. 4, 5. 

 Orthis (Dinorthis) calligramma Foerste, Geol. Ohio, 7, 1895, p. 570, pi. 25, figs. 



12a, 12b; pi. 31, figs. 4, 5; pi. 37A, fig. 20. 

 Orthis fiabellites Foerste, Proc. Boston Soc. Nat. Hist., 24, 1890, p. 311.— Hall and 



Clarke, Pal. New York, 8, pt. 1, 1892, pp. 221, 227, pi. 5, figs. 37-41; pi. 20, 

 . fig. 1.— Schuchert, Bull. IT. S. Geol. Surv., 87, 1897, p. 286.— Grabau, Bull. 



New York State Mus., 45, 1901, p. 186, fig. 94; Bull. Buffalo Soc. Nat. Sci., 7, 



1901, p. 186, fig. 94.— Weller, Geol. Surv. New Jersey, Pal., 3, 1903, p. 23l| 



pi. 20, fig. 20.— Kindle and Breger, 28th Ann. Rep. Dep. Geol. Nat. Res. 



Indiana, 1904, p. 432, pi. 2, figs. 3-6, 11.— Grabau and Shimer, N. A. Index 



Fossils, 1, 1907, p. 251, fig. 302.— Foerste, Bull. Sci. Lab. Denison Univ., 14, 



1909, p. 74, pi. 3, fig. 43. 



