378 BULLETIN 92, UNITED STATES NATIONAL MUSEUM. 



Dalmanella elegantula Continued. 



Orthis (Dalmanella) elegantula Foerste, Geol. Ohio, 7, 1895, p. 581, pi. 25, figs. 



11, 17. 

 Silurian: Europe. Widely distributed in all of the post-Richmond Silurian 



formations of eastern North America. 

 Plesiotypes.Czt. No. 51345, U.S.N.M. (Nettelroth.) 



Dalmanella elegantula media (Shaler). 



Orthis media Shaler, Bull. Mus. Comp. Zool., 1, 1865, p. 65. Billings, Cat. Sil. 



Fossils of Anticosti, 1866, p. 41. 



Rhipidomella media Schuchert, Bull. U. S. Geol. Surv., 87, 1897, p. 349. 

 Anticostian (Jupiter River and Chicotte): Southwest Point, etc., Anticosti. 



Dalmanella elegantula parva (Foerste). 



Orthis elegantula var. parva Foerste, Bull. Sci. Lab. Denison Univ., 1, 1885, p. 



85, pi. 13, fig. 17. 

 Dalmanella elegantula var. parva Hall and Clarke, Pal. New York, 8, pt. 1, 1892, 



p. 224. 

 Upper Medinan (Brassfield): Dayton, Ohio. 



DALMANELLA EMACERATA Foerste (1909). See Dalmanella fultonensis. 



Dalmanella emacerata (Hall). 



Orthis emacerata Hall, 13th Rep. New York State Cab. Nat. Hist., 1860, p. 121; 



15th Rep. ibid., 1862, pi. 2, figs. 1, 3. Billings, Canadian Nat. Geol., 7, 1862, 



p. 393. Miller, Cincinnati Quart. Jour. Sci., 2, 1875, p. 24, Hall, 2d Ann. 



Rep. New York State Geol., 1883, pi. 34, figs. 14, 15. Lesley, Geol. Surv. 



Pennsylvania, Rep. P 4, 1889, p. 515, figs. Keyes, Geol. Surv. Missouri, 5, 



1895, p. 58. Sardeson, Amer. Geol., 19, 1897, p. 102, pi. 5, figs. 14, 18, 28. 

 Orthis cyclus James, Cincinnati Quart, Jour. Sci., 1, 1874, p. 19. 

 Dalmanella emacerata Hall and Clarke, Pal. New York, 8, pt. 1, 1892, pp. 207, 



224, pi. 5C, figs. 1, 2. Grabau and Shimer, N. A. Index Foss., 1, 1907, p. 



260, fig. 311i-m. Foerste, Sci. Lab. Denison Univ., Bull. 17, 1912, p. 128, 



pi. 8, figs. 3a, b. 

 Dalmanella testudinaria var. emacerata Cumings, 32d Ann. Rep., Dep. Geol. 



Nat. Res., Indiana, 1908, p. 898, pi. 33, figs. 5-5a. 

 Dalmanella emacerata filosa Foerste, Bull. Sci. Lab. Denison Univ., 14, 1909, 



p. 214, pi. 4, fig. 1. 

 Eden (Fulton-Sou thgate): Cincinnati, Ohio, and vicinity. 



Dalmanella emacerata brevicula (Foerste). 



Dalmanella breviculus Foerste, Bull. Sci. Lab. Denison Univ., 14, 1909, pp. 



216, 322, pi. 7, fig. 5. 

 Orthis emacerata (part) Hall, 15th Rep. New York State Cab. Nat. Hist., 1862, 



pi. 2, fig. 2. 

 Dalmanella emacerata brevicula Foerste, Bull. Sci. Lab. Denison Univ., 17, 



1912, p. 128. 

 Eden (Southgate): Cincinnati, Ohio; Vevay, Indiana. 



DALMANELLA EMACERATA FILOSA Foerste. See Dalmanella emacerata. 



Dalmanella(?) evadne (Billings). 



Orthis evadne Billings, Pal. Fossils, 1, Geol. Surv. Canada, 1865, p. 81, fig. 74; p. 



79 (adv. sheets 1862). Whitfield, Bull. Amer. Mus. Nat. Hist., 1, 1886, p. 



300, pi. 24, fig. 8. Seely, Vermont State Geol., Rep., 7, 1910, pi. 62, fig. 8. 

 Dalmanella? evadne Hall and Clarke, Pal. New York, 8, pt. 1, 1892, p. 223, pi. 



5B, figs. 25, 26. 

 Canadian: Point Levis, Quebec (Levis); Fort Cassin, Vermont (Beekmantown) . 



