388 BULLETIN n, UNITED STATES NATIONAL MUSEUM. 



Dawsonoceras annulatum Continued. 



Orthoceras (Dawsonoceras) cf. annulatum Kindle and Breger, 28th Ann. Rep. 



Dep. Geol. Nat. Res. Indiana, 1904, p. 472, pi. 19, figs. 3, 4. 

 Orthoceras (Cycloceras) annulatum Foerste, Proc. Boston Soc. Nat. Hist., 24, 



1889, p. 282, pi. 8, fig. 5. 

 Dawsonoceras annulatum Grabau and Shimer, N. A. Index Fossils. 2, 1910, p. 



58, figs. 1260, 1261. 

 Orthoceras annulatum var. americanum Foord, Cat. Fossil Ceph. British Mus., 



1888, p. 56. Whiteaves, Pal. Foss. Geol. Surv. Canada, 3, pt. 2, 1895, p. 101. 

 Orthoceras (Dawsonoceras) annulatum var. americanum Kindle and Breger 



28th Ann. Rep. Dep. Geol. Nat. Res. Indiana, 1904, p. 472. 

 Dawsonoceras annulatum var. americanum Clarke and Ruedemann, New York 



State Mus., 5, 1903, p. 81, pi. 10, figs. 9-21; pi. 11, fig. 1. Grabau and Shimer, 



N. A. Index Fossils, 2, 1910, p. 58. Grabau, Michigan Geol. Surv., Geol. 



(1), 1909, p. 196, pi. 28, fig. 8; pi. 29, fig. 1. 

 Orthoceras nodocostum McChesney, Desc. New Fossils, 1861, p. 94; Plates 



Illust. N. Sp. Fossils, 1865, pi. 9, fig. 5. Winchell and Marcy, Mem. Boston 



Soc. Nat. Hist., 1, 1865, p. 101. 

 Orthoceras nodocostatum McChesney, Trans. Chicago Acad. Sci., 1, 1868, p. 53, 



pi. 9, fig. 5. 



Orthoceras Laphami McChesney, Desc. New Fossils, 1861, p. 91. 

 Orthoceras bartonense Spencer, Bull. Missouri State Mus., 1, 1884, p. 60, pi. 7, 



fig. 7; Trans. Acad. Sci. St. Louis, 4, 1884, p. 609, pi. 7, fig. 7. Clarke and 



Ruedemann, Mem. New York State Mus., 5, p. 83. 

 Orthoceras undulatum Hall, Pal. New York, 2, 1852, p. 293, pi. 64, fig. la-f ; pi. 



65, fig. 3. 

 Silurian: England; Gotland. Niagaran: New York; Canada; Ohio; Indiana; 



Tennessee; Wisconsin; etc. Upper Monroan: Michigan and Ontario. 

 Observation. Several species may be included in the above synonymy. 



Dawsonoceras hammelli (Foerste). 



Orthoceras (Dawsonoceras) hammelli Foerste, Bull. Sci. Lab.. Denison Univ., 



16, 1910, p. 74, pi. 1, fig. 4. 

 Richmond: Dog Falls and Madison, Indiana; Jefferson County. Kentucky 



(Whitewater-Saluda); West Milton, Ohio (Elkhorn). 



Dawsonoceras tenuilineatum Savage. 



Dawsonoceras tenuilineatum Savage, Bull. Geol. Surv., Illinois, 23, 1913, p. 119, 



pi. 7, fig. 22. 

 Upper Medinan: Pike County, Missouri (Edge wood); Will County, Illinois (Chan- 



nahon). 



DEIPHON Barrande. Genotype: D. forbesi Barrande. 



Deiphon Barrande, Neues Jahrb. Min., etc., 1850, p. 779. Pictet, Traite" de Pal., 

 2d ed., 2, 1854, p. 522. Zittel, Handb. Pal., 2, 1885, p. 618. Koken, Die 

 Leitfossilien, Leipzig, 1896, p. 33. Reed, Geol. Mag., dec. 4, 5, 1898, p. 211. 

 Beecher, Zittel-Eastman Textb. Pal., 1, 1900, p. 636. Raymond, ibid., 2d 

 ed., 1913, p. 725. 



Deiphon americanus Weller. 



Deiphon americanua Weller, Bull. Chicago Acad. Sci., Nat, Hist, Surv., 4, 1907, 



p. 268, pi. 24, fig. 14. 

 Niagaran (Racine): Joliet, Romeo, etc., Illinois. 



Deiphon forbesi Barrande. 



Deiphon forbesii Barrande, Haidinger's Berichte, 1850, p. 6. Salter, Mon. British 

 Tril., 1865, p. 88, pi. 7, figs. 1-12. Van Ingen, School of Mines Quart., 

 1901, p. 35. 



