56 BULLETIN 92, UNITED STATES NATIONAL MUSEUM. 



Aphetoceras farnsworthi — Continued. 



Aphetoceras farnsworthi Hyatt, Proc. Amer. Phil. Soc, 32, 1894, p. 448. — Ruede- 

 mann, Bull. New York State Mus., 90, Pal., 14, 1906, p. 473, fig. 24.— Grabau 

 and Shimer, N. A. Index Fossils, 2, 1910, p. 65, fig. 1273. 



Canadian (Beekmantown) : Phillipsbm'g, Missisquoi County, Quebec. 



APHYLLOSTYLUS Whiteaves. Genotype: A. gracilis "WTiiteaves. 



Aphyllostylus Whiteaves, Ottowa Naturalist, 18, 1904, p. 113. 



Aphyllostylus gracilis Uliiteaves. 



Aphyllostylus gracilis Whiteaves, Ottawa Nat., 18, 1904, p. 114; Geol. Surv. 



Canada, Pal. Foss., 3, pt. 4, 1906, p. 278, pi. 24, figs. 1, la. 

 Niagaran: Stonewall, Manitoba. 



Apioceras Saemann. See Poterioceras McCoy. 



Apiockinite(?) Anthony. See Glyptocrinus decadactylus. 



Apiocystis Haeckel. See Apiocystites Forbes. 



Apiocystites Hall. See Hallicystis Jaekel. 



Apiocystites Jaekel. See Lepocrinites Conrad. 



APIOCYSTITES Forbes. Genotype: A. pentrematoides Forbes. 



Apiocystites Forbes, Mem. Geol. Surv. Great Britain, 2, pt. 2, 1848, pp. 501, 

 503.— Hall, Pal. New York, 2, 1852, p. 242.— Muller, Ann. Mag. Nat. Hist., 

 2d ser., 13, 1854, p. 248.— Pictet, Traits de Pal., 2d ed., 4, 1857, p. 298.— 

 Chapman, Canadian Jour., n. s., 2, 1857, p. 303.— Hall, Pal. New York, 3, 

 1861, pp. 126, 151.— Shumard, Trans. Acad. Sci. St. Louis, 2, 1866, p. 354.— 

 Miller, N. A. Geol. Pal., 1889, p. 224.— Jaekel, Stammesg. Pelmat., 1, The- 

 coidea u. Cystoidea, Berlin, 1899, p. 279 (part). — Schuchert, Smiths. Misc. 

 Coll., 47, pt. 2, 1904, p. 210.— Springer, Zittel-Eastman Textb. Pal., 2d ed., 

 1913, p. 154. 



Apiocystis Haeckel, Amphorideen u. Cystoideen, Leipzig, 1896, p. 132. — Bather, 

 Treatise on Zool. (Lankester), pt. 3, 1900, p. 61. — Zittel, Grundzuge Pal., 1, 

 1910, p. 187. 



Lepadocrinus Bather (part). Treatise on Zool. (Lankester), pt. 3, 1900, p. 61. 



Apiocystites Canadensis Billings. See Callocystites canadensis. 



Apiocystites elegans (Hall). 



Apiocystites elegans Hall, Pal. New York, 2, 1852, p. 243, pi. 51, figs. 1-17.— 

 Jaekel, Stammesg. Pelmat., 1, Thecoidea u. Cystoidea, Berlin, 1899, p. 282. — 

 Schuchert, Smiths. Misc. Coll., 47, pt. 2, 1904, p. 212, pi. 34, figs. 4, 5. 

 Apiocystis elegans Haeckel, Amphorideen u. Cystoideen, 1896, pi. 3, figs. 4-9. 

 Clinton (Rochester): Lockport, New York; Grimsby, Ontario. 



ApiocYSTriES GEBHARDii Jaekel. See Lepocrinites gebhardi. 



Apiocystites huronensis Billings. See Brockocystis hiuonensis. 



Apiocystites imago Hall. See Hallicystis imago. 



Apiocystites tecumseth Billings. See Brockocystis tecumseth. 



Aplocrinus D'Orbigny. See Haplocrinus Steininger. 



APSIDOCERAS Hyatt. Genotype: Gyroceras (Lituites) magnificum Billings. 



Apsidoceras Hyatt, Proc. Boston Soc. Nat. Hist., 22, 1884, p. 289.— Miller, N, A. 

 Geol. Pal., 1st App., 1892, p. 695. 



