Echinoderma. 449 



ColOChirus, Troschel Wiegm. Arch. XII. 1. 1846 HOLOTHURIDA, 



Comarocystites, Billings Canada Geol. Surv. Dec. IV. 52. 1854. 



CYSTIDEA. Foss. 

 Coptosoma, Desor Syaops. Echin, foss. 1858. ..... ECHINIDA. Foss. 



Coronocrinus, J. Hall Journ. Sillimau Amer. XXV. 277. 1838. 



CRINOIDEA. Foss. 

 CoscinaSterias, Verril Trans. Connect. Acad I. 2. 1867. . . . ASTERIDA. 



Cottaldia, Desor Syuops. Echin. foss. 1858 ECHINIDA. Fos«. 



Cromyocrinus, Trautschold Monogr. 1867 CRIXOIDEA. Foss. 



Culicocrinus, (de Koninck) Zeiler et Wirtgen Verh. Rh. Westph. Nath. 



Ver. XII. 1. 1855 CRINOIDEA. Jbss. 



Cyathella, Steenstrup et Forchhammer Kiel. Naturf. Ver. Bericht 148. 1846. 



CRINOIDEA. 

 Cyclaster, Leymerie et Cotteau BuU. Soc. Geol. deFr, b. XIII. a45. 1856. 



ECHINIDA. Foss. 

 Cyclocystoides, Bill. Can. Geol. Surv. Dec. III. 86, 1858. ASTERIDA. Foss. 



Cystoblastus, VoUborth Monogr. 1867 CRINOIDEA. Foss. 



Cystoyriuus, F. Roemer Silur. Fauna d. westl, Tenessee 56. 1860. 



CRINOIDEA. Foss. 

 Cjrtocrinus, F. Roemer Silur. Fauna d. -westl. Tenessee 46. 1860. 



CRINOIDEA. Foss. 



I^adocrinus, Herm. v. MeyerLeonh, u. Bronn Zeitschr. 575. 1848. 



CRINOIDEA. Foss. 



Dendraster, Agass. Agassiz etDesor Catal. 1846 ECHINIDA. 



Dendrocrinus, J. Hall Geol. of New-York II. 193. 1854. CRINOIDEA. Fossi 

 Desorella, Cotteau Bull. Soc. Geol. de Fr.XIL 710. 1855. ECHINIDA. Foss. 



Desoria, GrayAnnalsN.H. VII. 130. 1851 ECHINIDA, 



Diademopsis, Desor Synops. Echin. foss. 1858 ECHINIDA. Foss. 



Diplocidaris, Desor Synops. Echin. foss, 1 858 ECHINIDA. fbss. 



Diplopodia, M"Coy Anu. N. H. II. 397. 1848 ECHINIDA. JPoss. 



Dorycrinus, F. Roemer Wiegmauu Arch. XIX. 207. 1853, CRINOIDEA. Foss. 

 Duasmodactyla, Stimpson Proc Bost. Soc IV. 8. 1848, . HOLOTHURIDA. 



iEjchinoconus, (Breyn) Desor Syn. Echin. foss. 1858, . ECHINIDA, Foss. 

 Echinodiadema, Verril Amer, Journ. XLIV, 126. 1867. . . . ECHINIDA. 

 Echinosoma, Semper Reise n. d. Philipp. 1, 1867, . . . HOLOTHURIDA. 

 Echinostrephus, A. Agassiz Mem. Amer, Acad, IX. 1864. . . ECHINIDA, 



Echinothrix, Peters Berl. Acad. Mon. Ber. 484. 1853 ECHINIDA. 



Edriaster, BiUiags Canada Geoi, Survay Dec, lU, 82, 1858. ■= Cyclaster 



BIU. 1857 . ASTERIDA. Foss. 



Edriocrinus, J. HaU SiUiman Journ. Amer. XXV. 277. 1858. 



CRINOIDEA. Foss. 

 ElaeacrinuSj F, Roemer Monogr. d. Blastoid. 1851. . CRINOIDEA. Foss. 

 Eleutherocrmus, Shumard et YaudeU Proc Phil, Acad. Nat. Sc. VIII. 73. 



1836 CRINOIDEA. Foss. 



Ellipsechinus, Liitken MisceU, N, H, Hafn. 97. 1864 ECHINIDA. 



Embolus, Selenka Zeitschr. f, wiss. Zool. XVIL 359. 1867. HOLOTHURIDA. 



Eocidaris, Desor Synops. Echin. foss. 1858 ECHINIDA. Fo«a. 



EpactocrinuSjCJ. MUUerjZeiler et Wirtgen Verh. d. Rhein. Westph. Naturh. 



Verein. X[L 1, 1855 CRINOIDEA, Fo5a, 



Eretmocrinus, Lyon et Casseday SiUiman. Amer. Journ. XXVIII. 233. 1859. 



CRINOIDEA, Foss. 

 Eugaster, J. HaU.Report. XX. on State Cabinet. N. H. 1 866. ASTERIDA. Foss. 



NomencL zoolog. 57 



