BIBLIOGRAPHIC LIST OF GENERA AND SPECIES. 403 



Desmograptus cancellatus (Hopkinson). 



Dictyograptus (Desmograptus) cancellatus Hopkinson, Quart. Jour. Geol. Soc. 



London, 31, 1875, p. 668, pi. 36, figs, lla, lib. 

 Dictyonema (Desmograptus) cancellatum Ruedemann, New York State Pal., 



Ann. Rep. 1902, p. 570. 

 Desmograptus cancellatus Ruedemann, Mem. New York State Mus., 7, pt. 1, 



1904, pp. 610, 611, pi. 3, figs. 5-8, 31. Grabau and Shimer, N. A. Index 



Fossils, 1, 1906, p. 26, fig. 36. 



Desmograptus macrodictyum Gurley, Jour. Geol., 4, 1896, p. 83. 

 Lower Ordovician: St. Davids, Wales (Lower Arenig); Point Levis, Quebec 



(Levis); Deepkill, Rensselaer County, New York (Deepkill, Diplograptua 



dentatus zone). 



Desmograptus Intrlcatus Ruedemanii. 



Dictyonema (Desmograptus) n. sp. Ruedemann, New York State Pal., Ann. Rep. 



1902, p. 570. 

 Desmograptus intricatus Ruedemann, Mem. New York State Mus., % 7, pt. 1, 1904, 



pp. 611, 612, pi. 3, figs. 1-4, text figs. 32, 33; fig. 30, p. 609. 

 Canadian (Deepkill-Diplograptus dentatus zone) : Deepkill, Rensselaer County, 



New York. 



DESMOGRAPTUS MACRODICTYUM Gurley. See Desmograptus cancellatus. 



Desmograptus pergracills (Hall and Whitfield). 



Dictyonema pergracilis Hall and Whitfield, 24th Rep. New York State C?b. Nat. 



Hist., 1872, p. 181 (abstract, p. 1); 27th Rep. New York State Cab. Nat. 



Hist., 1875, pi. 9, fig. 38. Spencer, Trans. Acad. Sci. St. Louis ; 4, 1884, pp. 



564, 577; Bull. Mus. Univ. State Missouri, 1, 1884, p. 27. Foerste, Bull. Sci. 



Lab. Denison Univ., 2, pt. 1, 1887, p. 107. Pocta, Syst. Sil. Boheme, 8, pt. 1, 



1894, p. 193. Gurley, Jour. Geol., 4, 1896, p. 308. 

 Desmograptus pergracilis Ruedemann, Mem. New York State Mus., 11, pt. 2, 



1908, p. 179. 

 Niagaran (Louisville): Louisville, Kentucky. 



Desmograptus tenuiramosus Ruedemann. 



Desmograptus tenuiramosus Ruedemann, Mem. New York State Mus., 11, pt. 2, 



1908, pp. 177, 178, pi. 1, fig. 2, text figs. 84, 85. 

 Chazyan (Normanskill) : Glenmont, Albany County, New York. 



DIABOLOCRINUS Wachsmuth and Springer. 



Genotype: D. perplexus Wachsmuth and Springer. 



Diabolocrinus Wachsmuth and Springer, Mem. Mus. Comp. Zool. Harvard, 20, 

 1897, pp. 211, 249. Bather, Treatise on Zool., pt. 3, Echinoderma, London, 

 1900, p. 200. Zittel, Grundzuge Pal., 1, 1910, p. 161. Springer, Zittel- 

 Eastman Textb. Pal., 2d ed., 1913, p. 188. 



Diabolocrinus asperatus (Miller and Gurley). 



Archaeocrinus asperatus Miller and Gurley, Bull. Illinois State Mus. Nat. Hist., 5, 



1894, p. 19, pi. 2, figs. 7-9. Miller, Sec. App., N. A. Geol. Pal., 1897, p. 734, 



figs. 1296, 1297. 

 Diabolocrinus hieroglyphicus Wachsmuth and Springer, Mem. Mus. Comp. Zool., 



Harvard, 20, 1897, p. 252 pi. 10, fig. 5a-c. 

 Chazyan (Ottosee): Near Knoxville, Tennessee. 



DIABOLOCRINUS HIEROGLYPHICUS Wachsmuth and Springer. See Diabolocrinus 

 asperatus. 



