378 TRANS. OP THE ACAD. OP SCIENCE. 



HOMOCRINUS (continued), 

 cylindricus, Hall, 1852. Pal. N. York, vol. ii., p. 186, pi. 41, fig. 



2 & 3.— Mag.— Lockport, N. York, 

 gracilis — Poteriocrinus gracilis, Hall, 18-17. Pal. N. York, vol. i., 



p. 85, pi. 28, fig. 2. — Homocrinus gracilis, Hall, 1852. Pal. 



N. York, vol. ii., p. 185. — Tr. — Herkimer Co., New York, 

 parvus, Hall, 1852. Pal. New York, vol. ii., p. 185, pi. 41, fig. 1.— 



Niag. — Lockport, New York, 

 polydactylus — Cyathocrinites, Christy, 1848. Letters on Geol., 



pi. 1, No. 7, and pi. 3, No. 1. — Homocrinus polydactylus, 



Shumard, 1857. Tr. Acad. Sci. St. Louis, vol. i., p. 78, pi. 



1, fig. 6. — H. R. G. — Richmond, Indiana. 

 proboscidialis, Hall, 1859. Pal. N. York, vol. iii., p. 138, pi. 84, 



fig. 24 & 25. — Orisk. — Cumberland, Maryland, 

 scoparius, Hall, 1859. Pal. N. York, vol. iii., p. 102, pi. 1, fig. 1. 



— Teniae. — Herkimer Co., New York. 



HYBOCRINUS, Billings, 1857. Rep. Geol. Canada, p. 274. 



conicus, Billings, 1857. Rep. Prog. Geol. Canada, p. 274. — 1859. 

 Canad. Org. Rem., Dec. iv., p. 29, pi. 2, fig. 2. — Trent. — 

 Ottawa, Canada. 



pristinus, Billings, 1859. Canad. Org. Rem., Dec. iv., p. 23, pi. 



1, fig. 2. — Cha. — Caughnawaga, Islands of Montreal, Jesus 



and Bizard, Canada, 

 tumidus, Billings, 1857. Rep. Prog. Geol. Canada, p. 275. — 1859. 



Canad. Org. Rem., Dec. iv., p. 28, pi. 2, fig. 1. — Trent. — 



Ottawa, Canada. 



HYPANTHOCRINITES, v. Eucalyptocrinus. 



ICTHYOCRINUS, Conrad, 1842. Jour. Acad. Nat. Sci. Phil., vol. 



viii., p. 279. 

 Burlingtonensis, Hall, 1858. Geol. Iowa, vol. i., p. 557, fig. 75. 



— Enc. — Burlington, Iowa. 

 (?) Clintonensis, Hall, 1852. Pal. N. York, vol. ii., p. 181, pi. 41, 



fig. 5. — CI. — Niagara Co., New York, 

 laevis, Conrad, 1842. Jour. Ac. Nat. Sci. Phil., vol. viii., p. 279, 



pi. 15, fig. 16.— Hall, 1852. Pal. N. York, vol. ii., p. 195, 



pi. 43, fig. 2.— Dana, 1863. Man. Geol., p. 240, fig. 389.— 



Niag. — Lockport, New York, 

 subangularis, Hall, 1863. Trans. Alb. Inst., vol. iv., p. 201. — Niag. 



— Waldron, Indiana, 

 tiaraeformis — Cyathocrinus tiarceformis, Troost, 1850. List Crin. 



Tenn. in Proc. Amer. Assoc. Camb. Meet., p. 60. — Arch. — 



White's Creek Springs, Tennessee. 



ICOSIDACTYLOCRINITES, v, Glyptocrinus.. 



LAMPTEROCRINUS, Roemer, 1860. Sil. Faun. West Tenn., p. 37. 

 — Balanocrinus, Troost, 1850. List Crin. Tenn., p. 60 

 (non Balanocrinus, Agassiz, 1846). 



inflatus — Balanocrinus injlatus, Hall, 1861. Rep. Sup. Geol. of 

 Wis., p. 22. — Lampterocrinus injlatus, Hall, 1864. New or 



