336 BULLETIN 92, UNITED STATES NATIONAL MUSEUM. 



CTCLOSPIEA Hall and Clarke. Genotype: Orthis bisulcata Einmons. 



Cyclospira Hall and Clarke, Pal. New York, 8, pt. 2, 1893, p. 146. Winchell and 

 Schuchert, Geol. Minnesota, 3, 1893, p. 469. Hall and Clarke, 13th Ann. 

 Rep. New York State Geol., 1895, p. 808 Miller, N. A. Geol. Pal., 2d App., 

 1897, p. 760. Grabau and Shimer, N. A. Index Fossils, 1, 1907, p. 309. 

 Schuchert, Zittel-Eastman Textb. Pal., 1913, p. 410. 



Cyclospira blsulcata (Emmons). 



Orthis bisulcata Emmons, Geol. New York, Rep. 2d Dist., 1842. p. 396, fig. 4. 

 Atrypa bisulcata Hall, Pal. New York, 1, 1847, p. 139, pi. 33, fig. 3 .Emmons, 



Amer. Geology, 1, pt. 2, 1855, p. 190, pi. 10, figs. 3a-e. 



Genus? bisulcata Hall, 12th Rep. New York State Cab. Nat. Hist., 1859, p. 05. 

 Camarella bisulcata Miller, Amer. Pal. Foss., 1877, p. 107. Lesley, Geol. Sun-. 



Pennsylvania, Rep. P 4, 1889, p. 3, figs. 

 Camarella owatonnensis Sardeson, Bull. Minnesota Acad. Nat. Sci., 3, 1892, p. 



328, pi. 4, figs. 1-3. 



Rhynchonella bisulcata Safford, Geol. Tennessee, 1869, p. 275, figs. 7, 14. 

 Cyclospira bisulcata? Winchell and Schuchert, Geol. Minnesota, 3, 1893, p. 470, 



pi. 34, figs. 49-54. 

 Cyclospira bisulcata Hall and Clarke, Pal. New York, 8, pt. 2, 1893, p. 147, figs. 



133-136, pi. 54, figs. 38-40. Whiteaves, Pal. Foss., 3, pt, 3, 1897, p. 180.- 



Grabau and Shimer, N. A. Index Fossils, 1, 1907, p. 309, figs. 386d-h. 

 Trenton: Adams, Jefferson County, New York; Ottawa, Ontario; Cannon Falls, 



etc., Minnesota; Lake Winnipeg. Manitoba. 



Cyclosplra( ?) sparsiplica Foerste. 



Cyclospira(?) sparsiplica Foerste, Geol. Ohio, 7, 1895, p. 593, pi. 37A, fig. 18. 

 Upper Medinan (Brassfield): Dayton, Ohio. 



CYCLOSTOMA? PERVETUSTA Conrad. See Euconia(?) pervetu^ta. 



OTCLOSTOMICERAS Hyatt, Genotype: Gomphoceras cassinense Whitfield. 



Cyclostomiceras Hyatt, Zittel-Eastman Textb. Pal., 1, 1900, p. 530. Ruedemann, 

 Bull. New York State Mus., 90, 1906, p. 500. Grabau and Shimer, N. A. In- 

 dex Fossils, 2, 1910. p. 119. Hyatt, Zittel-Eastman Textb. Pal., 2d ed., 

 1913, p. 611. 



Cyclostomlceras(?) brevicorne (Hall). 



Cyrtoceras brevicorne Hall, 20th Rep. New York. State Cab. Nat. Hist., 1868. p. 



356, pi. 18 (8), figs. 8, 9; rev. ed., 1870, p. 407, pi. 18, figs. 8, 9; pi. 25, fig. 14. 



Chamberlin, Geol. Wisconsin, 1, 1883, p. 194, fig. 

 Cyrtoceras brevicorne Clarke and Ruedemann, Mem. New York State Mus., 5, 



1903, p. 89, pi. 13, figs. 11, 12. 

 Cyclostomiceras(?) brevicorne Grabau and Shimer, N. A. Index Fossils, 3, 1910, 



p. 121, fig. 1361. 

 Xiagaran: Racine, Wisconsin (Racine and Guelph); Shelby and Rochester, Xew 



York (Guelph). 



Cyclostomiceras cassinense (Whitfield). 



Gomphoceras cassinense Whitfield, Bull. Amer. Mus. Nat. Hist.. 1, 1886, p. 322, 



pi. 29, figs. 1-3. Seely, Rep. State Geol. Vermont, 7, 1910, pi. 56, fig. 4. 

 Cyclostomiceras cassinense Hyatt, Zittel-Eastman Textb. Pal., 1, 1900, p. 530. 



Ruedemann, Bull. New York State Mus., 90, 1906, p. 501, fig, 56; pi. 3/ 



figs. 1-3; pi. 38, figs. 5, 6. Grabau and Shimer, N. A. Index Fossils, 2, 19] 



p. 120, fig. 1357. 

 Canadian (Beekmantown): Fort Cassin, Vermont. 



