BIBLIOGRAPHIC LIST OF GENERA AND SPECIES. 1081 



Ptychopteria? subquadrata Weller. 



Ptychopteria? subquadrata Weller, Geol. Surv. New Jersey, Pal., 3, 1903, p. 244, 



pi. 22, fig. 2. 

 Helderbergian (Decker Ferry): Two miles south of Tristates, New York. 



PTYCHOPYGE HUTTONI Clarke. See Baeilicus huttoni. 

 PTYCHOPYGE JERSEYENSIS Weller. See Bathyurus longispinus. 

 PTYCHOPYGE ROMINGERI Clarke. See Basilicas romingeri. 

 PTYCHOPYGE ULRICHI Clarke. See Basilicus romingeri. 

 PTYLOGRAPSUS FOLIACEUS Spencer. See Ptilograptus foliaceue. 

 PTYLOPORELLA Hall. See Ptiloporella Hall. 



PYANOMYA Miller. Genotype: P. gibbosa Miller. 



Pyanomya Miller, Jour. Cincinnati Soc. Nat. Hist., 1881, 4, p. 318; N. A. Geol. 

 Pal., 1889, p. 509. 



Pyanomya faberi Miller. 



Pyanomya faberi Miller, N. A. Geol. Pal., 1889, p. 509, fig. 912. 

 Maysville (Fairmount): Cincinnati, Ohio. 



Pyanomya gibbosa Miller. 



Pyanomya gibbosa Miller, Jour. Cincinnati Soc. Nat. Hist., 4, 1881, p. 318, pi. 8, 



figs. 4, 4a, 4b; N. A. Geol. Pal., 1889, p. 509, fig. 913. 

 Maysville (Fairmount): Cincinnati, Ohio. 



PYCNOCERAS Hyatt. Genotype: P. apertum Hyatt. 



Pycnoceras Hyatt, Proc. Amer. Phil. Soc., 32, 1894, p. 454. Miller, N. A. Geol. 

 Pal. 2dApp.,1897, p. 777. 



Pycnoceras apertum Hyatt. 



Pycnoceras apertum Hyatt, Proc. Amer. Phil. Soc., 32, 1894, p. 455, pi. 5, figs. 



18-20. 

 Canadian (Quebec) : Port au Choix, Newfoundland 



Pycnoceras calciferiforme Hyatt. 



Pycnoceras calciferiforme Hyatt, Proc. Amer. Phil. Soc., 32, 1894, p. 456. 

 Pycnoceras calciforme Miller, N. A. Geol. Pal., 2d App., 1897, p. 777. 

 Canadian: Port au Choix and Schooner Island, Newfoundland; Phillipsburg, 

 Quebec. 



PYCNOCERAS CALCIFORME Miller. See Pycnoceras calciferiforme. 



PYCNOCRINUS Miller. Genotype: Glyptocrinus shafferi Miller. 



Pycnocrinus Miller, Jour. Cincinnati Soc. Nat. Hist., 6, 1883, pp. 219, 231. 



Wachsmuth and Springer, Proc. Acad. Nat. Sci. Philadelphia, 1885, p.324(Kev. 



Pal., p. 102). Miller, N. A. Geol. Pal., 1889, p. 276. Bather, Treatise on 



Zool. (Lankester), pt. 3, 1900, p. 161. Zittel, Grundzuge Pal., 1, 1910, p. 



462. 

 Glyptocrinus (part) Miller, Cincinnati Quart. Jour. Sci., 1874, p. 348. Wachsmuth 



and Springer, Mem. Mus. Comp. Zool., Harvard, 20, 1897, p. 267. 



Pycnocrinus germanus (Miller). 



Glyptocrinus shafferi var. germanus Miller, Jour. Cincinnati Soc. Nat. Hist., 3, 

 1880, p. 233, pi. 7, figs. 2, 2a. 



