606 BULLETIN 92, UNITED STATES NATIONAL MUSEUM. 



HEMICYSTITES Continued. 



Cystaster Hall, 24th Rep. New York State Cab. Nat. Hist., 1872, footnote, pi. 6 

 (adv. sheets 1871). Jaekel, Stammes. Pelmat., 1, Thecoidea u. Cystoidea, 

 Berlin, 1899, p. 43. Bather, Treatise on Zool., pt. 3, Echinoderma, London, 

 1900, p. 207, fig. 2. (Genotype: Hemicystites granulatus Hall.) 



Thecoc^stis Jaekel, Stammes. Pelmat., 1, Thecoidea u. Cystoidea, Berlin, 1899, 

 p. 43. (Genotype: T. sacculus Jaekel.) 



Hemicystites billings! (Chapman). 



Agelacrinus billingsi Chapman, Canadian Jour., 5, 1860, pp. 358, 204. 

 Hemicystites (Agelacrinites) Billingsii Sladen, Quart. Jour. Geol. Soc., 35, 1879, 



p. 750. 

 Agelacrinites Billingsi Chapman, Ann. Mag. Nat. Hist., 3d ser., 6, 1860, p. 157, 



fig. Billings, Canadian Jour., n. s., 6, 1861, p. 516, fig. 86. Chapman, ibid., 



n. s., 8, 1863, p. 199, fig. 180; Expos. Min Geol. Canada, 1864, p. 110, fig. 86; 



p. 171, fig. 180. 

 Hemicystites Billingsi Jaekel, Stammes. Pelmat., 1, Thecoidea u. Cystoidea, 



Berlin, 1899, p. 49 (gen. ref.). 

 Trenton (?Curdsville): Peterboro, Ontario. 



Hemicystites carnensis Foerste. 



Hemicystites carnensis Foerste, Bull. Sci. Lab. Denison Univ., 17, 1914, p. 455, 



pi. 3, fig. 2. 

 Trenton (Upper): Carntown, Kentucky. 



Hemicystites (Cystaster) granulatus Hall. 



Hemicystites (Cystaater) granulatus Hall, 24th Rep. New York State Cab. Nat. 

 Hist., 1872, pi. 6, figs. 1-4 (adv. sheets 1871). Meek, Geol. Surv. Ohio, Pal., 



1, 1873, p. 54, pi. 3, figs. 9a, b. 



Hemicystites granulatus Grabau and Shimer, N. A. Index Fossils, 2, 1910, p. 473, 



fig. 1784c. 

 Hemicystis granulata Haeckel, Amphorideen u. Cystoideen, Leipzig, 1896, p. 



p. 112, pi. 3, figs. 27, 28. 



Thecocystis sacculus Jaekel, Stammesges. Pelmat., 1, 1899, p. 43, pi. 1, figs, la, b. 

 Cystaster granulatue Jaekel, ibid., p. 44, pi. 1, fig. 2. Bather, Treatise on Zool., 



pt. 3, Echinoderma, London, 1900, p. 206, fig. 2. Foerste, Bull. Sci. Lab. 



Denison Univ., 17, 1914, pi. 6, fig. 5. 

 Maysville (Fairmount): Cincinnati, Ohio, and vicinity. 



Hemicystites parasiticus Hall. 



Hemicystites parasitica Hall, Pal. New York, 2, 1852, p. 246, pi. 51, figs. 18-20. 

 Pictet, Traite de Pal., 2d ed., 4, 1857, p. 305, pi. 99, fig. 25. Meek and Worthen, 

 Proc. Acad. Nat. Sci. Philadelphia, 1868, footnote, p. 357. Jaekel, 

 Stammes. Pelmat., 1, Thecoidea u. Cystoidea, 1899, Berlin, p. 49. 



Agelacrinus parasitica Hall, 12th Rep. New York State Cab. Nat. Hist., 1859, p. 

 81 (gen. ref.). 



Clinton (Rochester): Lockport, New York. 



Hemicystites stellatus Hall. 



Hemicystites stellatus Hall, 24th Rep. New York State Cab. Nat. Hist., 1871, pi. 



2, fig. 5, 6. Meek, Geol. Surv. Ohio, Pal., 1, 1873, p. 52, pi. 3, figs. 8a, b. 

 Miller, N. A. Geol. Pal., 1889, p. 252, fig. 328. Jaekel, Stammes. Pelmat., 1, 

 Thecoidea u. Cystoidea, Berlin, 1899, p. 49. Grabau and Shimer, N. A. 

 Index Fossils, 2, 1910, p. 473, fig. 1784a. Foerste, Bull. Sci. Lab. Denison 

 Univ., 17, 1914, pi. 6, fig. 6. 



