366 TRANS. OF THE ACAD. OF SCIENCE. 



DICHOCRINUS (continued). 



constrictus, Meek & Worthen, 1860. Proc. Acad. Nat. Sci. Phil., 



p. 381. — Arch. — Bloomington, Indiana, 

 conus, Meek and Worthen, 1860. Proc. Acad. Nat. Sci. Phil., p. 



381. — Enc. — Warren Co., Illinois. 



cornigerus, v. Pterotocrinus cornigerus. 



crassitestus, White, 1862. Proc. Bost. Soc. Nat. Hist., vol. ix., p. 



19. — Enc. — Burlington, Iowa. 

 crassus, v. Pterotocrinus crassus. 

 dichotomu8, Hall, 1860. Geol. Iowa, Sup. to vol. i., p. 85. — Arch. 



— Warsaw, Illinois, 

 elegans, Casseday & Lyon, 1860. Proc. Amer. Acad. Arts & Sci., 



vol. v., p. 22. — Kask. — Near Mammoth Cave, Edmondson 



Co., Kentucky. 



ficus, Casseday & Lyon, 1860. Proc. Amer. Acad. Arts & Sci., 

 vol. v., p. 24. — Kask. — Hardin Co., Kentucky. 



lachrymosus, Hall, 1860. Geol. Iowa, Sup. to vol. i., p. 84. — Enc. 

 — Burlington, Iowa. 



laevis, Hall, 1860. Geol. Iowa, Sup. to vol. i., p. 83. — Enc. — Bur- 

 lington, Iowa. 



liratus, Hall, 1861. Des. New Crin., Prelim. Not., p. 5, 1861. 



Bost. Jour. Nat. Hist., vol.vii., p. 290. — Enc. — Burlington, 



Iowa, 

 ovatus, Owen & Shumard, 1850. Jour. Acad. Nat. Sci. Phil., vol. 



ii., n. ser., p. 61, pi. 7, fig. 9. — 1852. Geol. Surv. Iowa, 



Wisconsin and Minnesota, p. 590, pi. v. a., fig. 9. — Enc. — 



Burlington, Iowa. 



plicatus, Hall, 1861. Des. New Crin., Prelim. Not., p. 4.— 1861. 

 Bost. Jour. Nat. Hist., vol. vii., p. 288. — Enc. — Burlington, 

 Iowa. 



pocillum, Hall, 1861. Des. New Crinoidea, Prelim. Not., p. 5. — 

 1861. Bost. Jour. Nat. Hist., vol.vii., p. 291. — Enc. — Bur- 

 lington, Iowa. 



polydactylus, Casseday & Lyon, 1860. Proc. Amer. Acad. Arts 



& Sci., vol. v., p. 18. — Kas. — Hardin Co., Kentucky. 

 protubcrans, Hall, 1858. Geol. Iowa, vol. i., p. 689, pi. 25, fig. 7. 



— Kas. — Chester, Illinois, 

 scitulus, Hall, 1861. Des. New Crinoidea, Prelim. Not., p. 4. — 



1861. Jour. Boston Soc. Nat. Hist., vol. vii., p. 289.— Enc. 



— Burlington, Iowa, 

 sculptus, Casseday & Lyon, 1860. Pr. Amer. Acad. Arts & Sci., 



vol. v., p. 25. — Kas. — Hardin Co., Kentucky. 

 sex-lobatus, v. Pterotocrinus sex-lobatus. 

 simplex,! Shumard, 1857. Trans. Acad. Sci. St. Louis, vol. i., 



p. 74, pi. 1, fig. 2.— Hall, 1858. Geol. Iowa, vol. i., p. 654, 



pi. 22, fig. 12. — Arch.— Spergen Hill, Indiana; St. Mary's 



Landing, Missouri ; Sparta, Tennessee. 



t According to Prof. Hall, this species occurs in the Collection of the 

 late Dr. Troost, under the name of Doliocrinites ovalis, but the name does 

 not appear in the Catalogue or MSS. of the Monograph. Troost's speci- 

 men was procured from Sparta, Tennessee. 



