BIBLIOGRAPHIC LIST OF GENERA AND SPECIES. 1077 



PTYCHOCRINUS PRISCUS Wachsmuth and Springer. See Periglyptocrinus priscus. 



Ptychocrinus splendens (Miller). 



Gaurocrinus splendena Miller, Jour. Cincinnati Soc. Nat. Hist., 6, 1883, p. 230, 

 pi. 2, fig. 3, 3a. 



Ptychocrinus splendens Wachsmuth and Springer, Proc. Acad. Nat. Sci. Phila- 

 delphia, 1885, p. 323 (Rev. Pal., pt. 3, sec. 1, p. 101). Keyes, Missouri Geol. 

 Surv., 4, 1894, p. 162, pi. 22, fig. 1. Wachsmuth and Springer, Mem. Mua. 

 Comp. Zool. Harvard, 20, 1897, p. 198, pi. 18, fig. 3a, b. Savage, Bull. Geol. 

 Surv. Illinois, 23, 1913, p. 39, pi. 1, fig. 1. 



Upper Medinan (Girardeau): Cape Girardeau, Missouri; Thebes. Illinois. 



PTYCHONEMA Hall and Simpson. See Monotrypa Nicholson. 



PTYCHOPARIA Corda. Genotype: Conocephalus striatus Emmrich. 



Ptychoparia Corda, Abh. d. k. bohmischen Gesell., d. Wiss., 5 (extract), 1847, 

 p. 25, pi. 2, fig. 11. Walcott, Bull. U. S. Geol. Surv., 10, 1884, p. 34; ibid., 

 30, 1886, p. 193. Matthew, Canadian Rec. Sci., 2, 1887, p. 357; Trans. Roy. 

 Soc. Canada, 5, sec. 4, 1888, pp. 134, 142. Miller, N. A. Geol. Pal., 1889, 

 p. 564. (Ehlert, Bull. Soc. Geol. de France, Sdser., 33, 1895, p. 319, footnote; 

 34, 1896, p. 111. Beecher, Amer. Geol., 16, 1895, p. 178. Pompeckj, Jahrb. 

 d. k.-k. geol. Reichsanstalt, 45, 1896, p. 539. Beecher, Amer. Jour. Sci., 

 4th ser., 3, 1897, pp. 104, 184, 187, 188, pi. 3, fig. 16. Freeh, Leth. geog., 

 Leth. Pal., 2, 1897, p. 26, footnote. Toll, Mem. 1'Acad. Imp. Sci. St. Peters- 

 burg, 7th ser., 8, No. 10, 1899, p. 21. Beecher, Zittel-Eastman Textb. Pal., 1, 

 1900, p. 628. Lindstrom, Kongl. Sven. Vet.-Akad. Handl., 34, No. 8, 1901, 

 p. 22. Jaekel, Zeits. d. d.geol. Gesell., 53, 1901, p. 133; ibid., 54, Brief. Mitth., 

 1902, p. 53. Beecher, Amer. Jour. Sci., 4th ser., 13, 1902, p. 166. Gronwall, 

 Danmarks Geol. Unders., 2, Raekke, No. 13, 1902, p. 148. Lorenz, Zeitsch. 

 deutsch. geol. Gesell., 58, pt. 2, 1906, p. 57. Grabau and Shimer, N. A. 

 Index Fossils, 2, 1910, p. 275. Raymond, Zittel-Eastman Textb. Pal., 1913, 

 p. 715. Walcott, Cambrian Faunas China, Carnegie Inst., 3, 1913, p. 130. 



Ptychoparia afflnis (Walcott). 



Ptychoparia (Euloma?) afnnis Walcott, Mon. U. S. Geol. Surv., 8, 1884, p. 54, 



pi. 10, fig. 12; 32, pt. 2, 1899, p.'457, pi. 65, fig. 8. 

 Cambrian and ?Lowest Ordovician: Eureka District, Nevada. 



Ptychoparia? annectans Walcott. 



Ptychoparia? annectans Walcott, Mon. U. S. Geol. Surv., 8, 1884, p. 91, pi. 12, 



fig. 18. 



Lower Pogonip: Ridge east of Hamburg Ridge, Eureka District, Nevada. 

 Cotype. Cat. No. 24571, U.S.N.M. 



Ptychoparia blairi Weller. 



Ptychaparia blairi Weller, Geol. Surv. New Jersey Pal., 3, 1903, p. 117, pi. 1, 



fig. 10. 

 Upper Cambrian or Ozarkian (Kittatinny): Blairstown, New Jersey. 



PTYCHOPARIA CALCIPERA Walcott. See Lonchocephalus calciferus. 

 PTYCHOPARIA CONICA? Keyes. See Bathyurus conicus. 



Ptychoparia? devinei (Billings). 



Dikelocephalus Devinei Billings, Pal. FOBS., 1, Geol. Surv. Canada, 1865, p. 195, 



figs. 180-181. 

 Conocephalites Devinei Matthew, Trans. Roy. Soc. Canada, 10, sec. 4, 1893, p. 



11, footnote. 



