202 THE CRINOIDEA 



Astrios, Troost, nom. nud. (1850) ; not known. 

 Astrocoma, de Blainville (1830) ; syn. of Antedon and Actinometra. 

 Astrocrinus, Cumberland (1829), fide Wachsmuth & Springer, not known. 

 Astropodia, Llhuyd et Auctt. pre-Linn., for Crinoid arms; but Ure (1797) 



applied it also to various cup-plates, and Defrance (1819) to Apiocrinus. 

 Atocrinus, M'Coy (1844 or 1862), Carboniferous, Ireland ; referred to Platy- 



crinus by de Koninck & C. F. Roemer, to Cyathocrinus by Wachsmuth 



& Springer. The former probably right. 



Balanocrinus, Troost, nom. nud. (1850) ; syn. of Lampterocrinus. 

 Bohemicocrinus, Waagen & Jahn (1899), Silurian, Bohemia ; cup alone known, 



probably Carpocrinus or Desmidocrimis ; RR shaped much as in Barrandeo- 



crinus. 

 Caleidocrinus, Waagen & Jahn (1899), Ordovician, Bohemia ; like Taxocrinus, 



but apparently no anal between RR, and no anal ridge. 

 Calocrinus, Steininger (1849), Devonian, Eifel. Dicyclic Inadunate ; IBB fused ; 



no anal ; perhaps a Cupressocrinus. 

 Campanulites, G. Troost, nom. nud. (1850). 

 Centrocrinus, Worthen (1890), non Austin & Meek & Worthen, nee W. & Sp. ; 



? syn. of Gazacrinus. 



Codonocrinus,Troost, nom. nud. (1850) ; syn. of Pterotocrinus, opwd Shumard (1866). 

 Comatulina, d'Orbigny (1852), Oxfordian, C. costata = Solanocrinus, Goldf., which 



is syn. of Antedon. 



Comaturella, Miinster (1839) ; syn. of Antedon. 



Conocrinus, Troost, nom. nud. (1850) ; syn. of Alloprosallocrinus, apud. W. & Sp. 

 Cophinus, Murchison, ex Konig MS. (1839), Silurian, England. Impressions of 



stems. 



Crumenaecrinus, Troost, nom. nud. (1850). 

 Cupulocrinus, d'Orb. (1850), based on Scyphocrinus heterocostalis, Hall (1847), 



which is referred by Wachsmuth & Springer to Flexibilia Impinnata. 

 Cypressocrinus, a variant and possibly preferable spelling of Cupressocrinus. 

 Cystocrinus, C. F. Roemer (1860), Silurian, Tennessee. Stem only known, see 



Fig. L. 2. 

 Daemonocrinus, Troost, nom. nud. (1850) ; syn. of Pterotocrinus, apud Shumard 



(1866). 



Decacnemos, Bronn ex Linck (1837) ; syn. of Antedon. 

 Decadactylocrinus, D. D. Owen, nom. nud. (1843) ; syn. of Heterocrinus, apud 



Shumard (1866). 



Decameros, d'Orbigny ex Linck (1850) ; syn. of Antedon. 

 Dimorphicrinus, d'Orbigny (1849), based on Platycrinus pentangular is, Miller ; 



syn. of Orophocrinus, p. 84. 

 Doliolocrinus, Troost MS., fide Hall (1858) ; D. ovalis is syn. of Dichocrinus 



simplex, Shumard. 



Donacicrinus, Troost, nom. nud. (1850). 

 Echinocrinus, L. Agassiz, 1841, and T. & T. Austin (1842) ; not a crinoid, but an 



echinoid=Archaeocidaris, M'Coy, 1844. 

 Emperocrinus, Miller & Gurley (1895), Silurian, Indiana ; probably syn. of 



Anthemocrinus ; but has 3 IBB, and was placed by its authors with 



doubt in Taxocrinidae. 

 Encrinos, Agricola (1558), a stem-fragment composed of Pentacrini or Asteriae 



(q.v. supra}. 

 Entrochus, Agricola (1558), a stem-fragment composed of Trochitae (q.v. infra). 



