CATALOGUE OF TRILOBITES. 305 



DICELLOCEPH ALUS . 



LODENSIS Whitf., 1880; Ann. Rep. Geol. Survey Wisconsin, 1879, p. 51. 



Potsdam. 



- LODENSIS Whitf., 1882; Geol. Wisconsin, vol. 4, p. 188, pi. 10, fig. 14; 



p. 341, pi. 27, figs. 12-13. 



MAGNIFICUS Bill., I860; Canadian Naturalist, vol. 5, p. 307, fig. 5. 



This species has not the glabella or pygidium of a Dicellocephalus. 



MAGNIFICUS Bill,, 1865; Pal. Foss., vol. 1, p. 399, figs. 376. Point 



Levis, Quebec. 



- ? marcoui Whitf., 1884; Bull. Am. Mus. Nat. Hist. New York, vol. 1, 



p. 150, pi. 14, fig. 7. Referred to Olenoides marcoui Wai., 1886; 

 Bull. U. S. Geol. Survey, No. 30, p. 186, pi. 26, figs. 5, 5 a, b. 



Potsdam. 



MABICA Wai., 1884; Pal. Eureka Dist. Mon. U. S. Geol. Survey, vol. 



8, p. 44, pi. 10, fig. 13. Prospect Mt., Secret Canon, etc., Nev. 



Taconic. 



MEGALOP Bill., 1860; Canadian Naturalist, vol. 5, p. 311, fig. 9. 



Point Levis, Quebec. 



MEGALOP Bill., 1865; Pal. Foss., vol. 1, p. 403, fig. 380. 

 miniscaensis. (See Ptychaspis miniscaensis.) 



. MINNESOTENSIS Owen. A very large sp. Asaphus Owen, 1848; Rep. 

 Geol. Reconn. Chippewa Land Dist., p. 15, pi. 7, figs. 2, 3. 



Taconic. 



MINNESOTENSIS Owen, 1852; Rep. Geol. Survey Wis., Iowa and Minn., 



p. 574, pi. 1, figs. 2, 10; pi. 10, tigs. 3, 6. 



MINNESOTEXSIS Hall, 1863; 16th Rep. New York State Cab. Nat. Hist., 



p. 138, pi. 9, figs. 5-10; pi. 10, figs. 10-12; pi. 11, figs. 1-4, 6. 

 Mazomania, Lagrange Mountain, Minnesota; Madison, Wis. 



MINNESOTENSIS var. LIMBATUS Hall, 1863; 16th Rep. New York State 



Cab. Nat. Hist., p. 141, pi. 9, fig. 12. Lagrange Mt., Minnesota. 



- MINNESOTENSIS var. Hall, 1863; 16th Rep. New York State Cab. Nat. 



Hist., p. 141, pi. 9, fig. 11; pi. 10, fig. 9. Lagrange Mt., Still- 

 water, Minn. 



MINNESOTENSIS W'inchell, 1864; Am. Jour. Sci., 2d series, vol. 37, p. 



229. 



MINNESOTENSIS Whitf., 1882; Geol. Wisconsin, vol. 4, p. 187, pi. 3, 



fig. 1. 



- MISA Hall, 1863; 16th Rep. State Cab. Nat. Hist., p. 144, pi. 8, fig. 15; 



pi. 10, figs. 4-8. Trempleau and Miniska, Wis. Potsdam. 



- MISSISQUOI Bill., 1865; Pal. Foss., vol. 1, p. 199. Phillipsburgh. cf. 



D. magnificus. 



- MITLTICINCTUS H. & W., 1877; U. S. Geol. Expl. 40th Par., vol. 4, p. 



226, pi. 2, fig. 37. Pogonip Mt., White Pine Dist., Nev. 



NASUTUS Wai., 1884; Pal. Eureka Dist. Mon. U. S. Geol. Survey, vol. 



8, p. 40, pi. 10, tig. 15. Prospect Mt., Secret Canon, etc., Nev. 



Taconic. 

 20 



