936 BULLETIN 92, UNITED STATES NATIONAL MUSEUM. 



Palaeocrinus pulchollus Billings. 



Palaeocrinus pulchellus Billings, Geol. Surv. Canada, dec. 4, 1859, p. 46. 

 Cyathocrinus pulchellus Wachsmuth and Springer, Proc. Acad. Nat. Sci. Phila- 

 delphia, 1879, p. 310 (Rev. Pal., pt. 1, p. 87). 

 Trenton (Curdsville) : Ottawa, Ontario. 



Palaeocrinus rhombiferus Billings. 



Palaeocrinus rhombiferus Billings, Geol. Surv. Canada, dec. 4, 1859, p. 45. 

 Cyathocrinus rhombiferous Wachsmuth and Springer, Proc. Acad. Nat. Sci. 



Philadelphia, 1879, p. 310 (Rev. Pal., pt. 1, p. 87). 

 Trenton (Curdsville): Ottawa, Ontario. 



Palseocrlnus striatus Billings. 



Palseocrinus striatus Billings, Geol. Surv. Canada, dec. 4, 1859, p. 25, pi. 1, figs. 

 5a, 5b. Miller, N. A. Geol. Pal., 1889, p. 267, figs. 383, 384 Hudson, Bull. 

 New York State Mus., 149, 1911, pi. 5-6, figs. 1-4; figs. 4-10, 12-19. 



Cyathocrinus striatus Wachsmuth and Springer, Proc. Acad. Nat. Sci. Philadel- 

 phia, 1879, p. 310 (Rev. Pal., pt. 1, p. 87), (gen. ref.). 



Chazyan (Aylmer) : Caughnawaga and Island of Montreal, Canada. 



Palaeocrinus sulcatus Safford. 



Palaeocrinus sulcatus Safford, Geol. Tennessee, 1869, p. 286. (Not defined.) 

 Stones River (Pierce): Central Tennessee. 



PAL5DOCYCLUS Edwards and Haime. Genotype: P. porpita (Linnaeus). 



Palaeocyclus Edwards and Haime, Compt. Rend, de 1'Acad. Sci., 29, 1849, p. 70; 

 Mon. Polyp. Foss. Terr. Pal., 1851 (Arch, du Mus. d'Hist. Nat., 5), p. 203 

 Milne-Edwards, Hist. Nat. d. Corall., 3, 1860, p. 47. Duncan, Phil. Trans. 

 Roy. Soc. London, 157, 1867, p. 651, pi. 32, figs. 6a-e; Proc. Roy. Soc. 

 London, 1867, p. 460. Dybowski, Archiv. f. Naturf. Liv.-Ehst. und Kurl., 

 5, 1873, pp. 334, 360. Zittel, Handb. Pal., 1, 1879, p. 227 Roemer, Leth. 

 geog., pt. 1, Leth. Pal., 1883, p. 345. Miller, N. A. Geol. Pal., 1889, p. 199. 

 Sherzer, Amer. Geol., 7, 1891, pp. 278-283. Koken, Die Leitfossilien, 

 Leipzig, 1896, p. 308. Grabau and Shimer, N. A. Index Fossils, 1, 1906, 

 p. 64. Zittel-Eastman Textb. Pal., 1, 1913, p. 74. 



Palaeocyclus rotuloldes (Hall). 



Cyclolites rotuloides Hall, Pal. New York, 2, 1852, p. 42 pi. 17, figs. 4a-e. 



Palseocyclus rotuloides Miller, N. A. Geol. Pal., 1889, p. 199, fig. 203. Grabau and 

 Shimer, N. A. Index Fossils, 1, 1906, p. 65. 



Upper Clinton: Near Clinton, Oneida County, New York; Pennsylvania; Mary- 

 land. 



PALEOCYSTIS Haeckel. See Palaeocystites Billings. 



Palaeocystis pentolena Haeckel. Not recognized. 



Palaeocystis pentolena Haeckel, Amphorideen u. Cystoideeu Leipzig, 1896, p. 69, 



pi. 1, figs. 5, 5b. 

 " Lower Silurian: Canada." 



PAL^EOCYSTITES Billings. Genotype: Actinocrinus tenuiradiatus Hall 



Palseocystites Billings, Geol. Surv. Canada, dec. 3, 1858, p. 68. Chapman, Expos. 

 Min. Geol., 1864, p. 109 Zittel, Handb. Pal., 1, 1879, p. 418 Miller, N. A. 

 Geol. Pal., 1889, p. 267. Haeckel, Amphor. und Cystoid., 1896, p. 69. 

 Bather, Treatise on Zool., pt. 3, Echinoderma, London, 1900, p. 54. Zittel- 

 Eastman Textb. Pal., 1, 1900, p. 184. Grabau and Shimer, N. A. Index 

 Fossils, 2, 1910, p. 462. Springer, Zittel-Eastman Textb. Pal., 2d ed., 1913, 

 p. 152. 

 Palseocystis Haeckel, Amphorideen u. Cystoideen, Leipzig, 1896, p. 69. 



