CATALOGUE OF TRILOBITES. 257 



BRONTIDJE. 



Bronteus Goldfuss, 1843. Beitrage Petrefact., Nova Acta Physico-Med., 

 vol. 19, p. 360. Type, Brontes flabellifer Goldf. 



Cambrian. Silurian. Devonian. 



DALMAXITID2E. 

 Phacops Emmrich, 1839. De Trilob., etc., p. 18. Type, Phacops lalifrons 



Bronn. Cambrian. Silurian. Devonian. 



Dalmanites Emnirich, 1844. Zur Nat. Trilobiten, etc., p. 15. Barrande's 



Syst. Sil. Boheme, vol. suppl., p. 27. Type, Dalmanites caudata 



Briinn. Cambrian. Silurian. 



Coronura Hall, 1888. Pal. New. York, vol. 7, p. xxxii. Type, Coronura 



aspectens Con. Devonian. 



Cryphaeus Green, 1837. Am. Jour. Sci., 1st series, vol. 32, p. 343. Type, 



Cryphceus boothi Green. Devonian. 



Chasinops McCoy, 1849. Annals Nat. Hist., 2d series, vol. 4; also Contrib. 



to Palaeont., p. 143. Type, Calymene odini Eichw. Cambrian. 



CERAURHXE. 

 Ceraurus Green, 1832 (Cheirurus Beyrich, 1845). Mon. Trilobites N. A., 



p. 83. Type, Ceraurus pleurexanthemus Green. 



Cambrian. Silurian. Devonian. 

 SphEerexochus Beyrich, 1845. Ueber einige bohm. Trilobiten, p. 19. Type, 



Sphcerexochus mirus Beyr. Cambrian. 



Areia Barrande, 1872. Syst. Sil. Boheme, vol. 1, suppl., p. 96. Type, 



Areia bohemica Barr. Cambrian. 



Deiphon Barrande, 1852. Syst. Sil. Boheme, vol. 1, p. 814. Type, Deiphon 



forbesi Barr. Silurian. 



Placoparia Corda, 1847. Prodr., p. 128. Type, Placoparia zippi Boeck. 



Cambrian. 

 Staurocephalus Barrande, 1852. Syst. Sil. Boheme, vol. 1, p. 810. Type, 



Staurocephalus murchisoni Barr. Cambrian. Silurian. 



Onycopyge Woodward, 1880. Geol. Mag., decade 2, vol. 7, p. 97. Type, 



Onycopyge liversidgei H. W. Cambrian. 



AMPHIONID.E. 

 Amphion Pander, 1850. Beitrage Geog. Russischen Keiches, p. 439. 



Type, Amphion fischeri Eichw. Cambrian. 



Cromus Barrande, 1852. Syst. Sil. Boheme, vol. 1, p. 821. Type, Cromus 



intercostatus Barr. Silurian. 



ENCRINURIDJE. 

 Encrinums Emmrich, 1844 (Cryptonymus Eichwald). Zur Nat. Trilobiten, 



p. 16. Type, Trilobus punctatus Briinn. Cambrian. Silurian. 



Cybele Loven, 1845. Svenska Akad. Forhandl., 1845, p. 110. Type, 



Calymene bellatula Dalm. Cambrian. 



Dindymene Corda, 1847. Prodr., p. 119. Type, Dindymene frederico- 



augusti Cord. Cambrian. 



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