SYNOPSIS OF GENERA. 



XXIX 



LSS7. Phacops, CEiilert. Ann.de la S logiqne. 



L88S. Phacops, Frech. Zeitschr. der deutsch. geol. Gesellschaft. 



Diagnosis. Body oval. Cephalon parabolic; 

 genal angles obtuse, or produced into minute 

 spines. Glabella tumid, prominent, widest ante- 

 riorly; the two anterior pairs of lateral furrows 

 indistinct. Eves very large, conspicuous, bearing 

 numerous corneal lenses. Thorax sub-quadrate ; 

 segments eleven ; pleura' arched, and rounded at their extremities. Pygidium 

 moderately large, composed of few annulations; margin entire and not pro- 

 Longed into a terminal spine. 



Genus DALM A N I T E S , Barrande. 1852. 



177'-'. EntomoHthus, Born. Lithoph. Bornimi. 



1781. Trilobus, Brdennich. Kjoben. Sellsk. Skrivter. Nye Samml. 



1794. EntomoHthus, Redss. Mayer's Samml. phj Uifs. 



1811. Trilobitts, Parkinson. Organic Ri 



1821. Entomostracites (partiin), Wahlenberg. Nov. Act. Ui>sala. 



1822. Asaphus, Brongniart. Hist. Nat. Crust, foss. 



1823. T>-tlobites, Schlotheim. Nachtr. ii zur Petrefakt. 

 1S25. Trilobites, Sternberg. Verhandl. des Vatarl. Mi 

 1826 Asaphits, Dalman. Oeber Palseaden. 



1829. Asaphus, Holl. Handb. der Petrefacten. 



1S32. Asaphvs, Eaton. Geological Text-book. 



1832. Asaphus, Goldfuss. Dechen's Handb. der Geognosie. 



1832. Asaphus, Green. Monog. Trilob. X. America. 



1835. Asaphus, Green. Sin pi. Monog. X. Amer. Trilob. 



ls:;7. Asaphus, Hisinger. Lethjea Suecica. 



ls:;7. Asaphus, Bbckland. Bridgewater Trei 



1>M7. Asaphus, Quenstedt. Wiegmann. Arcl 



LS39. I aphus, Calymene, Murchison. Silurian System. 



1839. Phacops partim, Emmrich. De Trilob. Di 



1840. Asaphus, Milne-Edwards. Hist. Nat. Crust. 



1840. Phacops, von Buch. Geb. Format. Rnsslands. 



1841. Asaphus, Aspidolites, Conrad. Fifth Ann. Rept. Pal. N. Y. 

 1S43. Asaphus, Hall. Rept. Fourth. Dist. N. Y. 



1843. Asaphus, Goldfuss. Neues Jahrb. fur Min. 



1843. Phacops, Burmeister. Organiz. d. Trilobiten. 



1843. Phacops, Portlock. Rept. < I. Lond lerry. 



1845. Dalmania, Emmru h. Neu ■■ Jahrb. fur Min. 



1845. Phacops, Asaphus, Mdrcmson, De Vei i Keyserli 



1846. Phacops, Geinitz. Gi-undr. der Versteinerui 

 1846. Phacops, Barrande. Notice pr<Sli 



1846. Phacops, Rodault. Hull. Soc. gi il. de Fra 



1847. Odontochile, Corda. Prodrom Monog. bohm. Trilob. 

 184S. Phacops, Hall. Pal. N. Y., vol. i. 



■ i I lural. 



