CATALOGUE OF TRILOBITES. 257 



Brontid^. 

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

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



Cambriau. Silurian. Devonian. 



DALMANITIDa;. 



Phacops Emmvicb, 1839. De Trilob., etc., p. IS. Type, Phacops latifrona 

 Bronn. Cambriau. Silurian. Devonian. 



Dalmanites Enimricli, 1844. Zur Nat. Trilobiteu, etc., p. 15. Barraude'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. 



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

 CryphcEus boothi Green. Devonian. 



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

 to Pala^out., p. 143. Type, Calymcne odini Eichw. Cambrian. 



Ceraurid^. 

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



p. 83. Type, Ceraurus pleurexanthermis Green. 



Cambrian. Silurian. Devonian. 

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



Sphcerexochus niirus Beyr. Cambrian. 



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



Areia bohemica Barr. Cambrian. 



Deiphon Barrande, 1852. Syst. Sil. Boheme, vol. 1, p. 814. Tj^pe, Deiphon 



forbesi Barr. Silurian. 



Placoparia Corda, 1847. Protlr., p. 128. Type, Placopuria zippi Boeck. 



Cambrian. 

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



Staurocephalus murchisoni Barr. Cambrian. Silurian. 



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



Omjcopyge liversidgei H. W. Cambrian. 



Amphionid^. 

 Amphion Pander, 1850. Beitrage Geog. Kussischen Keiches, ^. 439. 



Type, Amphion jischeri Eichw. Cambrian. 



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



intercostatus Barr. Silurian. 



EnCRINURID/TJ. 



Encrinurus Emmrich, 1844 (Crj'ptonymus Eichwald). Zur Nat. Trilobiten, 



p. 16. Type, Trilobus punctattis'Bvxxnix. Cambrian. Silurian. 



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



(Jalymene bellatula Dalm. Cambrian. 



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



augusti Cord. Cambrian. 



17 



