520 BULLETIN 92, UNITED STATES NATIONAL MUSEUM. 



Eurymyella shalert longa Williams. 



Eurymyella shaleri var. longa Williams, Proc. U. S. Nat. Mus., 42, 1912, p. 397, pi. 



49, fig. 8. 



Silurian (Eastport): Moose Island, etc., Washington County, Maine. 

 Holotype.~G&t. No. 58435, U.S.N.M. 



Eurymyella shaleri minor Williams. 



Eurymyella shaleri var. minor Williams, Proc. U. S. Nat. Mus., 42, 1912, p. 387, 



pi. 49, fig. 9; ibid'., 45, 1913, p. 346, pi. 31, fig. 5. 

 Silurian (Eastport): Sipps Bay, south of highway bridge, Washington County, 



Maine. 

 Holotype and plesiotype. Cat. Nos. 58436, 58972, U.S.N.M. 



Eurymyella? slmulans Williams. 



Eurymyella? simulans Williams, Proc. U. S. Nat. Mus., 1912, p. 388, pi. 49, figs. 



12,"l3. 



Silurian (Eastport): East side of Seward Neck, Washington County, Maine. 

 Cotypes.C&t. No. 58438, U.S.N.M. 



EURTPTERUS Dekay. Genotype: E. remipes Dekay. 



Eurypterus Dekay, Annals Lyceum Pal. New York, 1, 1825, p. 375. Harlan, 

 Medical, Physical Res., 1835, p. 297. Hibbert, Trans. Royal Soc. Edin- 

 burgh, 13, 1836, p. 281. Conrad, 1st Ann. Rep. New York Geol. Surv., 

 1837, p. 182. Fischer de Waldheim, Bull. Soc. geol. France, 11, 1840, p. 368. 

 Edwards, Hist. Nat. d. Crustaces, 3, 1840, p. 422. Conrad, 5th Ann. Rep. 

 New York Geol. Surv., 1841, p. 38. Roemer, Palseontographica, 1, 1848, 

 pp. 192-193. McCoy, British Pal. Rocks Fossils, 1854, p. 175. Pictet, 

 Trait^ de Pal., 2d ed., 2, 1854, p. 529. Salter, Quart. Jour. Geol. Soc. Lon- 

 don, 12, 1856, p. 27. Nieszkowski, Archiv. f. Naturk. Liv.-Ehst-u. Kurl., 

 1858, 2, p. 308. Hall, Pal. New York, 3, 1859, 1861, pp. 382; 385; 392; 395; 

 397, figs. 1, 2; 398, fig. 3; 400, fig. 5; 403, figs. 6, 7. Woodward, Mon. British 

 Foss. Crust., Pal. Soc., 1872, p. 132. Barrande, Syst. Sil. du Centre Boheme, 

 1, Suppl., 1872, p. 563. Alth, Abhandl. der K.-K. Geol. Reichsanstalt, 7, 

 H&t 1, 1874, p. 54. Hall and Clarke, Pal. New York, 7, 1888, p. 49. Schmidt, 

 Mem. 1'Acad. Imp. Sci. St. Petersb., 7 ser., 31, 5, 1883, p. 48. Zittel, 

 Handb. Pal., 2, 1885, p. 647. Miller, N. A. Geol. Pal., 1889, p. 548. Vogdes, 

 Annals New York Acad. Sci., 1889, p. 20, pi. 1, fig. 7. Laurie, Trans. 

 Royal Soc. Edinburgh, 37, 1893, p. 517; Nat. Sci., 2, 1893, p. 125; ibid., 3, 

 1893, p. 125. Clarke, Zittel-Eastman Textb. Pal. 1, 1900, p. 674. Grabau, 

 Bull. New York State Mus., 45, 1901, p. 228. Clarke, 54th Rep. New York 

 State Mus., 1901, p. 83. Grabau, Bull. Buffalo Soc. Nat. Sci., 7, 1901, p. 

 228. Clarke, Bull. New York State Mus., 107, 1907, p. 304. Grabau and 

 Shimer, N. A. Index Fossils, 2, 1910, p. 405. Clarke and Ruedemann, 

 Mem. New York State Mus., 14, 1912, p. 155. Clarke, Zittel-Eastman Textb. 

 Pal., 2d ed., 1913, p. 782. 



Onychopterus (subgenus of Eurypterus) Clarke and Ruedemann, Mem. New 

 York State Mus., 14, 1912, p. 212. Clarke, Zittel-Eastman Textb. Pal., 1913, 

 p. 782. (Genotype: Eurypterus kokomoensis Miller and Gurley). 



Tylopterus (subgenus of Eurypterus) Clarke and Ruedemann, Mem. New York 

 State Mus., 14, 1912, p. 216. Clarke, Zittel-Eastman Textb. Pal., 1913, 

 p. 783. (Genotype: Eurypterus boylei Whiteaves). 



Eurypterus (Tylopterus) boylei (Whiteaves). 



Eurypterus Boylei Whiteaves, Pal. Foss., Geol. Surv. Canada, 3, pt. 1, 1884, p. 42, 

 pi. 7, fig. 3; ibid., pt. 2, 1895, p. 109 (loc. occ.) 



