208 BULLETIN 92, UNITED STATES NATIONAL MUSEUM. 



Chaetocladus sardesoni Ruedemann. 



Chsetocladua sardesoni Ruedemann, BulL New York State Mus., 133, 1909, p. 



204, pi. 2, figs. 3-11. 

 Black River (Platteville) : Minneapolis, Minnesota. 



CHjETOMORPHA Kuntze. A genua of recent marine algae. 



CliiBtomorpha?? prima Whitfield. 



Oldhainia £riiticoga Hall (part), Canadian Organic Remains, dec. 2, 1865, p. 50. 



Chsetomorpha? prima Whitfield, Bull. Amer. Mus. Nat. Hist., 6, 1894, p. 355, pi. 

 11, figs. 9, 10; Mem. Amer. Mus. Nat. Hist, 1, pt. 2, 1895, pi. 4, figs. 9, 10.— 

 Ruedemann, New York State Mus., Bull. 133, 1909, p. 203, figs. 9, 10. 



Black River (Platteville): Platteville, Wisconsin. 



Chalazodes Parks. See Lophiostroma Nicholson. 



Charionella? hyale Billings. See Whitfieldella hyale. 



CHASMATOPORA Eichwald. Genotype: C. tenella Eichwald. 



Retepora as applied by various author.s to Ordovician and Silurian anastomosing 



bryozoa (not Lamarck, 1801). 

 Gorgonia(?) Hall, Pal. New York, 1, 1847, pp. 16, 76 (not Linnaeus, 1745). 

 Intricaria Hall, Pal. New York, 1, 1847, p. 77.— Miller and Dyer, Contr. Pal., No. 



2, 1878, p. 7. 



Subretepora D'Orbigny, Prodr. Pal., 1, 1850, p. 22.— Miller, N. A. Geol. Pal., 

 1889, p. 326. (See Geol. Surv. Illinois, 8, pp. 683, 687.) 



Ohasmatopora Eichwald, Lethsea Rossica, 1, 1860, p. 370. — Pocta, Syst. Sil. Centre 

 Boheme, 8, 1894, pt. 1, p. 27.— Bassler, B\dl. U. S. Nat. M;is., 77, 1911, p. 

 169; Zittel-Eastman Texth. Pal., 1913, p. 340. 



Phyllopora (in part) Uhich, Jour. Cincinnati Soc. Nat. Hist., 5, 1882, p. 150. 



Nov. gen. (not named) Ulrich, Contr. Amer. Pal., 1, 1886, p. 5. 



Phylloporina (Ulrich) Foerste, Bidl. Sci. Lab. Denison Univ., 2, 1887, p. 150.— 

 Ulrich, Geol. Surv. Illinois, 8, 1890, pp. 399, 639; Geol. I\Iinnesota, 2, 1893, 

 p. 208.— Pocta, Syst. Sil. Centre Boheme, 8, pt. 1, 1894, p. 17.— Ulrich, Zit- 

 tel'sTextb. Pal. (Engl, ed.), 1896, p. 283.— Nickles and Bassler, Bull. U. S. 

 Geol. Surv., 173, 1900, p. 37.— Grabau, Bull. Buffalo Soc. Nat. Sci., 7, 1901, 

 p. 168; Bull. New York State Mus., 45, 1901, p. 168.— Bassler, Bull. U. S. 

 Geol. Surv., 292, 1906, p. 48.— Grabau and Shimer, N. A. Index Fossils, 1, 

 1907, p. 140. 



Chasmatopora angiilata (Hall). 



Retepora aiigulata Hall, Pal. New York, 2, 1852, p. 49, pi. 19, figs. 3a-h.— Hall 



and Whitfield, Pal. Ohio, 2, 1875, p. Ill, pi. 5, figs. 2-4; 12th Ann. Rep. 



Indiana Geol. Nat. Hist., 1882, p. 269, pi. 14, figs. 1, 2.— Lesley, Geol. Surv. 



Pennsylvania, Rep. P 4, 1889, p. 861, figs. 

 Phylloporina angulala Foerste, Bull. Sci. Lab. Denison LTniv., 2, 1887, p. 151; 



3, 1888, pi. 15, fig. 1; Geol. Surv. Ohio, 7, 1895, p. 600, pi. 28, fig. 1. 

 Subretepora angulata ]\Iiller, N. A. Geol. Pal., 1889, p. 326, fig. 523. 

 Retepora daytonensis Hall and Whitfield, Geol. Siu-v. Ohio, Pal. 2, 1875, p. Ill 



(proposed at end of description). 

 Early Silmian: Sodus and Rochester, New York (Clinton); Flamborough Head, 

 etc., Ontario (Cataract); Dayton, etc., Ohio; Kentucky; Tennessee; and 

 Alabama; (Brassfield); West Ellis Bay, Anticosti (Ellis Bay). 



Chasmatopora aspora (Hall). 



Gorgonia? aapera Hall, Pal. New York, 1, 1847, p. 16, pi. 4, figs. 3a, b. 

 Subretepora aspera Miller, N. A. Geol. Pal., 1889, p. 326. 



