CATALOGUE OF TRILOBITES. 317 



ILL^NUS. LICHAS. 



VINDEX Bill, 1865; Pal. Foss., vol. 1, p. 179, fig. 160. Mingan Islands. 



Chazy. 



(Bumastus) WORTHENANUS W. & M., 1866; Mem. Boston Soc. Nat. 



His., vol. 1, pt. 1, p. 105, pi. 3, fig. 13 (referred by Hall, 20th Kep. 



New York State Cab. Nat. Hist., to Illcenus armatus Hall). 

 Isoletus De Kay, 1825; Annals Lyceum Nat. Hist. New York, vol. 1, p. 174. 



canalis. (See Asaphus canatis.) 



cyclops. (See Asaphus platycephalus.) 



gigas. (See Asaphus platycephalus.) 



maximus. (See Asaphus maximus.) 



megalops Green, 1832; Mon. Tril. N. A., p. 70, cast 75. 

 megistos. (See Asaphus maximus.) 



platycephalus. (See Asaphus platycephalus). 



planus. (See Asaphus platycephalus.) 



stegops. (See Asaphus platycephalus.) 



vigilans. (See Asaphus vigilans.) 



LEPTOPLASTUS Ang., 1854; Palaeont. Scand., p. 46. 



LATUS Matt., 1891; Canadian Kecord of Sci., 1891, p. 462, figs, 1-3. 



LATUS Matt., 1891; Trans. Eoyal Soc. Canada, vol. 9, p. 54, pi. 13, 



figs. 10 a, b. St. John, N. B. For other species see Anomocare. 

 LICHAS Dalm., 1826; Palaead., pp. 53, 71, pi. 6, fig. 1. 



Syn., Platynotus Con., 1838; Geol. Survey New York, Rep. Pal Dept., 



p. 118. 



Arges Gold., 1839 (in part). 



Metopias Eichw., 1842; Die Urwelt Russ., p. 62, pi. 3, figs. 21-23. 

 Arctinurus Cast., 1843; Syst. Sil. de 1'Amer., p. 21. 

 Nuttainia Portl. & Emm. 

 Corydocephalus Cord., 1847; Prodr., p. 255. 

 Dicranopeltis Cord., 1847; Prodr., p. 257. 

 Acanthopyge Cord., 1847; Prodr., p. 260. 

 Dicranogmus Cord., 1847; Prodr., p. 261. 



Subgenera, Hoplolichas Dames, 1877; Zeitschr. Deutsch. Geol. Gesell., 

 p. 794. Type, Hoplolichas tricuspidata Beyr. 



Conolichas Dames, 1877; Zeitschr. Deutsch. Geol. Gesell., p. 



806. Type, Conolichas cequiloba Steinh. 

 armatus Hall. (See Acidatpis eriopis Hall.) 



(Hoplolichas) BICOMES Ulreth, 1892; The Arner. Geol., vol. 10, p. 272, 



fig. Spring Valley, Minn. Hudson. 



- BIGSBYI Hall, 1859; Pal. New York, vol. 3, p. 364, pi. 77, figs. 1-8. 



Coeymans, Schoharie and Carlisle. Lower Helderberg. 



. (Conolichas) BIGSBYI ? 'Hall, 1888; Pal. New York, vol. 7, p. 80, pi. 19 



a, fig. 1. 



Paradoxides BOLTONI Bigsby, 1825; Jour. Acad. Nat. Sci. Phila., 



vol. 4, p. 365, plate. Lockport, N. Y. Niagara. 



