CATALOGUE OF TKILOBITES. 317 



ILL^NUS. LICHAS. 



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



Chazy. 



(Biunastm) worthexaxus VV. &; 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 Ilkenus urmatus Hall). 

 laoletus De Kay, 1825; Auiials Lyceum Nat. Hist. New York, vol. 1, p. 174. 



canalifi. (See Ascq^hus cancUis.) 



Cyclops. (See Asaphus platycephalus.) 



• gigas. (See Asaphus platycephalus.) 



maximus. (See Asaphus maximus.) 



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



megistos. (See Asaphus maximus.) 



platycephalus. {^ee Asaphus platycephalus). 



planus. {See Asaphus 2}latyce2)halus.) 



stegops. (See Asaphus platycephahis.) 



— vigilans. (See Asaphus vigilans.) 



LEPTOPLA.STUS Aug., 1854; Palfeont. Seaud., p. 46. 



LATDS Matt., 1891; Canadian Eecord 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. 

 LiCHAsDalm., 1826; Palajad., pp. 53, 71, pi. 6, fig. 1. 



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

 p. 118. 

 Arges Gold., 1839 (in part). 



Metoplas Eichw., 1842; Die Urwelt Buss., p. 62, pi. 3, figs. 21-23, 

 Arctimtrus Cast., 1843; Syst. Sil. de I'Amer., p. 21. 

 Nuttainia Portl. & Emm. 

 Corydocephalus Cord., 1847; Prodr., ■^. 255. 

 Dicrano]>eltis Cord., 1847; Prodr., p. 257. 

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

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

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

 p. 794. Type, HoploUchas tricuspidata Beyr. 



Conolichas Dames, 1877; Zeitschi*. Deutsch. Geol. Gesell., p. 

 806. Type, Conolichas cequiloba Steinh. 



armatus HaW. (See Acidatpis eriopis Hall.) 



(HoploUchas) bioo.mes Ulreth, 1892; The Amer. Geol., vol. 10, p. 272, 



fig. Spring Valley, Minn. Hudson. 



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



Coeymans, Schoharie and Carlisle. Lower Helderberg. 



(Conolichas) bicsbyi? Hall, 1888; Pal. New York, vol. 7, p. SO. pi. 19 



a, fig. 1. 

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

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



