242 BULLETIN 92, UNITED STATES NATIONAL MUSEUM. 



Clionychia superba (Billings). 



Ambonychia euperba Billings, Cat. Sil. Foss. Anticosti, Geol. Surv. Canada, 1866, 



p. 50, fig. 16. 



Cleionychia? superba Ulrich, Amer. Geol., 10, 1892, p. 97 (gen. ref.). 

 Gamachian (Ellis Bay): Junction Cliff, Anticosti. 

 Plastotype.Cat. No. 46910, U.S.N.M. 



Clionychia undata (Emmons). 



Pterinea undata Emmons, Geol. Rep. New York, 2, 1842, p. 395, fig. 1. Owen, 



Amer. Jour. Sci. and Arts, 47, 1844, p. 369, fig. 1; p. 366, fig. 

 Ambonychia undata Hall, Pal. New York, 1, 1847, p. 165, pi. 36, figs. 7a-b. 



Hitchcock, Geol. Vermont, 1, 1861, p. 296, fig. 205. Lesley, Geol. Surv. 



Pennsylvania, Rep. P 4, 1889, p. 23, fig. 



Cleionychia undata Ulrich, Amer. Geol., 10, 1892, p. 97 (gen. ref.). 

 Clionychia undata Ulrich, Geol. Minnesota, 3, pt. 2, 1894, p. 497, pi. 35, figs. 21, 



22. Grabau and Shimer, N. A. Index Fossils, 1, 1909, p. 435, fig. 569b. 

 Posidonomya subundata Emmons, Amer. Geology, 1, pt. 2, 1855, p. 177, pi. 13, 



figs. 23, 25. 

 Trenton: Watertown, etc., New York; Fillmore and Goodhue Counties, Minnesota 



(Prosser). 

 Plesiotype.Czt. No. 46119, U.S.N.M. 



CLIOPTERIA Williams. Genotype: Cliopteria bicostata Williams. 



Cliopteria Williams, Proc. U. S. Nat. Mus., 42, 1912, p. 391. 



Cliopteria bicostata Williams. 



Cliopteria bicostata Williams, Proc. U. S. Nat. Mus., 42, 1912, p. 392, pi. 50, figs. 



1, 2, 7. 



Silurian (Pembroke): Youngs Cove, Washington County, Maine. 

 Cotypes.C&t. No. 58441, U.S.N.M. 



Cliopteria unicosta Williams. 



Cliopteria unicosta Williams, Proc. U. S. Nat. Mus., 42, 1912, p. 393, pi. 50, figs. 



3, 4, 6. 



Silurian (Pembroke): Youngs Cove, Washington County, Maine. 

 Cotypes Cat. No. 58442, U.S.N.M. 



CLISIOPHYLLUM Dana. Genotype: C. danaanum Edwards and Haime. 



Clisiophyllum Dana, Wilkes' U. S. Expl. Exped. 1838-42, 7, 1846, p. 361, pi. 26, 

 figs. 6, 7; Amer. Jour. Sci. and Arts, 2d ser., 1, 1846, p. 187, fig. 2. Edwards 

 and Haime, Mon. Polyp. Foss. Terr. Pal. (Arch. Mus. d'Hist. Nat., 5), 1851, 

 pp. 170, 409. Billings, Canadian Jour., n. s., 4, 1859, p. 128. Milne-Edwards, 

 Hist. Nat. Corall., 3, 1860, p. 402. Dybowski, Archiv. f . Nat. Liv-, Ehst- und 

 Kurl., 5, 1873, p. 338. Nicholson, Rep. Pal. Prov. Ontario, pt. 1, 1874, 

 p. 20. Thomson and Nicholson, Ann. Mag. Nat. Hist., 4th ser., 18, 1876, 

 p. 71, fig. E. Rominger, Geol. Surv. Michigan, 3, pt. 2, 1876, p. 110. Zittel, 

 Handb. Pal., 1, p. 232. Roemer, Leth. geog., pt. 1, Leth. Pal., 1883, p. 384. 

 Hall, 12th Rep. Indiana Dep. Geol. Nat, Hist., 1883, p. 299. Miller, N. A. 

 Geol. Pal., 1889, p. 179. Koken, Die Leitfossilien, Leipzig, 1896, p. 309. 

 Lambe, Cont. Can. Pal., Geol. Surv. Canada, 4, pt. 2, 1901, p. 173. 



CLISIOPHYLLUM AUSTINI Houghton. See Acervularia austini. 



Clisiophyllum danaanum Edwards and Haime. 



Clisiophyllum danaanum Edwards and Haime, Mon. Polyp. Foss. Terr. Pal. 

 (Arch, du Mus. d'Hist. Nat., 5), 1851, p. 412. Milne-Edwards, Hist. Nat. 

 Corall., 3, 1860, p. 404. 

 Silurian: Perry County, Tennessee. 



