454 Echiuoderma. 



SphaerooystiteS, J- Hall Silllmau Jouru. Amer. XXV. 2. 1858. 



CYSTIDEA. Foss. 

 Sphenocrinus, Eichwald BuU. Mosc. Soc. Imp. d. Nat. XXIX. 125. 1856. = 



Ophiura, Ew CRINOIDEA. Foss. 



Stemmatocrinus, Trautschold Mouogr. 1867 CRINOIDEA. Foss. 



Stenaster, Billings Eig. etc. Cau. Org. Rem. Dec III. 78. 1858. 



ASTERIDA. Foss. 



Stenonia, Desor Syuops. Echiu.foss. 1858 ECHINID A. Foss, 



Stephanaster, Ayres Bostou Soc. Proceed. IV. 118. 1848. = Astroqonium. 



Miiller etTrosch. 1842? ASTERIDA. 



Stephanocrinns, Courad Jouru. Phil. Ac VIQ. 279.1842. CRINOIDEA.i^oss. 

 Stereodactyla, Stimpsou Proc Bostou Soc IV. 8. 1848. . HOLOTHURIDA. 



Stichaster, Verril Proc. Bost. N. H. Soc 350. 1867 ASTERIDA. 



Stirechinus, Desor Syuops. Echiu. foss. 1858 ECHINIDA. Foss. 



Stolus, Seleuka Zeitschr. f. wiss. Zool. XVII. 355. 1867. . HOLOTHURIDA. 



Stomechinus, Desor Syuops. Echiu. foss. 1858 ECHINID A. Foss. 



Stylocrinus, G. u. Fr. Saudberger Verst. d. Rh. Schichten-Syst. in Nassau. 



L 399. 1856 CRINOIDEA. Foss. 



Syringocrinus, Billiugs Cauada Geol. Surv. Dec IV. 65. 1859. 



CRINOIDEA. Foss. 



Taeniaster, Billings Fig. etc. Canad. Org. Rem. Dec III. 80. 1858. 



ASTERIDA. Foss. 



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



Temnechinus, Edw. Forbes Mouogr. Echin. Brit. Tert. 7. 1852. 



ECHINIDA. Foss. 

 Temnocidaris, A. Agassiz Mem. Amer. Acad. IX. 1864. . ECHINIDA. Foss. 

 Thyonidium, Koreu Arch. skandiu. Beitr. I. 439. 1845. . HOLOTHURIDA. 

 Thysanocrinus, J. Hall Geol. of New-YorkIL188. 1853. CRINOIDEA. Foss. 

 Torynocrinus, Seelcy Anuals N. H. 17. 1866. = Koninckocrinus, Seeley. 



1864 CRINOIDEA. Foss. 



Tosia, Gray Auu. N. H. XX. 193. 1847. . • ASTERIDA. 



Trichocrinus, J. MUller Berl. Acad. Mon. Ber. 354. 1856. CRINOIDEA. Foss. 



Tripylus, Philippi Wiegm. Arch. XL 1. 1845 ECHINIDA. 



Trochinus, Stimpsou Proc Bost. Soc IV. 8. 1848 HOLOTHURIDA. 



Tropidaster, E. Forbes Brit. Org. Rem. III. 1850. . . . ASTERIDA. Foss. 

 Trybliocrinus, Geinitz Leouh. u. Geinitz Zeitschr. 284. 1867. 



CRINOIDEA. 



XJrodemaS, Selenka Zeitschr. f. wiss. Zool. XVII. 352. 1867. 



HOLOTHURIDA. 



anthobrissus, A. Agassiz Mem. Amer. Acad. IX. 1864. = Brissopsis, 

 Agassiz MS ECHINIDA. 



leacrinus, (Troost) Hall et Whituey Geol. Sury. of Jowa I. 544. 1858. 



CRINOIDEA. Foss. 

 Zygocrinus, Bronn lud. Palaeont. 1. 1381. = Asterocrinites, Aust. 1842. 



v: CRINOIDEA. ioss. 



