XXIV 
SYNOPSIS OF GENERA. 
18(53. Homaloiiotus, F. A. RoiMBR. Neues Jiihrb. fiir Min. 
18G4. Brongniartia, Saltbr. Monog. Brit. Ti-ilobites. 
1864. Triiiierus, Salter. Monog-. Brit. Trilobites. 
1864. Koenigla, Salter. Monog. Bi-it. Trilobites. 
1864. Blpleura, Salter. Monog. Brit. 'I'rilobites. 
1864. Burmeisteria, Salter. Monog. Brit. Trilobites. 
1864. Hovialonotiis, De Vernevil. Bull, de la Soc. g<iol. de Fi-ance. 
1864. HomalonoUis, Tchihatcheff. Le Bosphoi-e et Constantinople. 
1864. Homalonotas, Salter. Quart. Jour. Geol. Soc. 
1866. Homahmotus, D’Archiac, Fischer and De Verneuil. In Tchihatcheff ’s Asie Mineure. 
1867. Homalomtus, De Verneuil. Comptes rendus. 
1867. Homalonotas, Etheridge, (^uart. Jour. Geol. Soc. 
1868. Ho7)ialonotns, Dewalque. Prodr. d. descript. giSol. de Belgique. 
1869. Homalonotas, Salter and Woodward. Monog. Brit. Ti-ilobites. 
1872. Homalonotas, Barrande. Syst. Sil. BohSme, vol. i, suppl. 
1878. Homalonotas, Washburn. Amer. Jour. Science. 
187.6. Homalonotas, Hartt and Rathbun. Ann. Lyc. Nat. Hist. 
1876. Homahniotus, Hall. Illustrations of Devonian Fossils. 
1876. Homalonotas, Diyleuva, Rce.mer. Lethsea palieozoica. 
1878. Ho'inalonotas, Angelin. Palieontologia Scandinavica. 
1879. Homalonotas, Hall. Twenty-eighth Rept. N. Y. State Mus. Nat. Hist. 
1879. Homalonotas, Gbrsttecker. Bronn’s Class, u. Ordnung. der Thierr., vol. v. 
1881. Homalonotas, Bbyrich. Zeitschr. d. deut. geol. Gesellsch. 
1881. Homahmotus, Hall. Eleventh Rept. Geol. Surv. Indiana. 
1881. Homalonotas, Woodward. Geol. Mag., vol. viii. 
1882. Homalonotas, Woi.dward. Geol. Mag., vol. ix. 
1882. Homalonotas, Barrois. Rech. sui- les Terrains anc. des Asturies et de la Galice. 
1883. Homalonotas, Koch. Monog. Homal. Art. Rhein. Unterdev. 
1883. Homalonotas, Novak. Zur Kenntn. bohm. Trilob. 
1884. Homalonotas, Novak. Studien an Hypost., ii. 
1884. Homalomitas, Beushausen. Oberharz. Siiirif. Sandstn. 
1885. Homalonotas, Whitfield. Bull. Am. Mus. Nat. Hist., No. 6. 
1885. Homalonotas, Gossblet. Proc. Geol. Assoc, and Ann. de la Soc. g6ol. du Nord. 
1886. Homalonotas, Maurer. Fauna rechtsrhein. Unterdev. 
1886. Homalonotas, Gossblet. Ann. de la Soc. gdol. du Nord. 
1886. Homalonotas, Barrois. Bull, de la Soc. g6ol. de France. 
1886. Homalonot as, Lebescontb. Bull, de la Soc. g<5ol. de France. 
Diagnosis. Botiy usually large, produced, depressed 
above, with abruptly sloping sides. Axial furrows 
indistinct or obsolete. Surface smooth or spinose. 
Cephalon depressed-convex, wider than long; genal 
angles rounded; anterior margin somewhat pro¬ 
duced ; glabella sub-rectangular, smooth or with 
faint lateral furrows; eyes small, situated somewhat back of the middle of the 
shield; the facial sutures run from the genal angles over the eyes, converging 
toward the frontal margin, where they are connected by the transverse frontal 
