394 TRANS. OF THE ACAD. OF SCIENCE. 



PTEROTOORINUS (continued). 



coronarius — Asterocrinus coronarkis, Lyon, 1857. Geol. Kentucky, 

 vol. 3, p. 476, pi. 1, fig. 1. — Pterotocrinus coronarius, Lyon 

 & Casseday, 1859. Syn. List. Pal. Echinod., Proc. Amor. 

 Acad. Arts & Sci., vol. iv., p. 302.— Kas.— Crittenden Co., 

 Kentucky. 



erassus — Dichocrinus (Pterotocrinus) crassus, Meek & Worthen, 

 1860. Proc. Acad. Nat. Sci. Phil., p. 382.— Kas.— Hardin 

 Co., Illinois. 



depressus, Lyon & Casseday, 1860. Amer. Jour. Sci., n. ser., vol. 



29, p. 68. — Kas. — Grayson Springs, Grayson Co., Kentucky, 

 pyramidalis, Lyon & Casseday, 1860. Amer. Jour. Sci., vol. 29, 



p. 69. — Kas. — Grayson, Edmondson and Breckenridge 



Counties, Kentucky, 

 rugosus, Lvon & Casseday, 1860. Amer. Jour. Sci., vol. 29, p. 71. 



— Kas. — Kentucky, 

 sex-lobatus — Dichocrinus sex-lobatus, Shumard, 1857. Trans. 



Acad. Sci. St. Louis, vol. i., p. 73, pi. 1, fig. 3. — Kas. — 



Russellville, Kentucky. 



PYGORHYNCHUS, Agassiz, 1839, 



Gouldi, Bonvc, 1846. Proc. Bost. Soc. Nat. Hist., p. 192.— Kas.(?) 



RETEOCRINUS, Billings, 1859. Can. Org. Rem. Dec. iv., p. 63. 

 (?) fimbriatus, Billings, 1859. Canad. Org. Rem., Dec. iv., p. 65. 



— H. R. — Charieton Point, Anticosti, Canada. 

 stellaris, Billings, 1859. Canad. Org. Rem., Dec. iv., p. 64, pi. 9, 

 fig. 4. — TV. — Ottawa, Canada. 



RHODOCRINUS— Excrixus, Cumberland, 1819. Trans. Geol, Soc. 

 London, vol. v. — Rhodocrixites, Miller, 1821. Nat. Hist. 

 Grin. — Ollacrixus, Cumberland, 1826. App. Rel. Conserv. 

 — Riiodocrixus, Agassiz, 1835. Mem. Soc. Neuch., vol. i. 

 — Gilbertsocrixus, Phillips, 1836. Geol. Yorks., vol. ii. — 

 Rhodocrixus, Koninck, Hall, and others. 



asperatus, Billings, 1859. Canad. Org. Rem., Dec. iv., p. 27, fig. 



4. — Cha. — Near Montreal, Canada. 

 Barrisi, Hall, Feb., 1861. Des. New Crin., Prelim. Not., p. 9.— 



— 1861. Bost. Jour. Nat. Hist., vol. vii., p. 322. — Enc. — 



Burlington, Iowa. 



var. divergens, Hall, 1861. Des. New Crin., Prelim. Not., p. 9. 



— 1861. Bost. Jour. Nat. Hist., vol. vii., p. 324. — Enc. — 



Burlington, Iowa. 

 ( Acanthocrinus) gracilis, Hall, 1862. 15th Rep. Res. State Cab. 



N. York, p. 127. — Ham.— Ontario Co., New York. 

 Halli, Lyon, 1861. Proc. Ac. Nat. Sci. Philad., p. 412, pi. 4, fig. 



5. — L. //.(?) — Jefferson Co., Kentucky. 

 Melissa, Hall, 1863. Trans. Alb. Inst., vol. iv., p. 198. — Niag 



Waldron, Indiana. 



rnicrobasalis, v. Thysanocrinus microbasalis. 



(Acanthocrinus) nodulosus, Hall, 1862. 15th Rep. Reg. State Cab. 

 N. York, p. 126. — Ham. — Ontario Co., New York. 



