CATALOGUE OF TRILOBITK- 281 



BATHYURUS. 



- ARMATUS Wai., 1879; 32d Rep. New York State Mus. Nat. Hist., p. 131. 

 Dorypyge ? ARMATUS Vogd., Bull. U. S. Geol. Survey, No. 63, p. 97. 



- BiTCBERCULA-rrs Bill., 1860; Canadian Naturalist, vol. 5, p. 319, fig. 



22; also, Geol. Canada, 1863, p. 238, fig. 270. Point Levis, 

 Quebec. Taconic. 



BITUBERCULATUS Bill., 1865; Pal. Foss., vol. 1, p. 410, fig. 391. This 



species cannot be included within the limits of Bathyurns. As 

 we know of no other to which it bears a resemblance, the new 

 generic term of lAoydla is proposed, in honor of the first author 

 on Trilobites, Edward Lhwyd. Diagnosis: Glabella tumid and 

 extending to the frontal limb; basal lobes elongate-oval, pointed 

 at both ends, separated from the glabella by shallow, obscure 

 grooves; eyes opposite the mid length of the glabella; thorax 

 unknown. 



- BREVICEPS Bill., 1865; Pal. Foss., vol. 1, p. 262, fig. 246. Table Head, 



N. F. 



CAPAX Bill., 1860; Canadian Naturalist, vol. 5, p. 318, fig. 20. Point 



Levis, Quebec. 



- CAPAX Bill., 1863; Geol. Canada, p. 238, fig. 271. 



CAPAX Bill., 1865; Pal. Foss., vol. 1, p. 409, fig. 389, A similar 



species was referred by Mr. R. P. Whitfield (Geol. Survey Wis- 

 consin, vol. 4, pi. 4, fig. 6) to Dicellocephalus. cf. Niobe insignia 

 Brogg. 



- CAUDATUS Bill., 1865; Pal. Foss., vol. 1, p. 261, fig. 245. Port aux 



Choix, N. F. Calciferous. 



CONICUS Bill., 1859; Canadian Naturalist, vol. 4, p. 366, fig. 12 d. St. 



Timothy Beaucharuois Canal, in the Upper Calciferous. 



- coxicrs Bill., 1863; Geol. Canada, p. 122, fig. 42. 



CONICUS Bill., 1865; Pal. Foss., vol. 1, p. 353, fig. 341 b. 



- coxicus Whitf., 1889; Bull. Am. Mus. Nat. Hist., vol. 2, No. 2, p. 61, 



pi. 13, figs. 15-21. 



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



vol. 8, p. 92, pi. 12, fig. 8. Wood cone and below Bellevue Peak, 

 Fish Creek Mts., Eureka Dist. 



CORDAI Bill., 1860; Canadian Naturalist, vol. 5, p. 321, fig. 26. Cow 



Head, Point Levis, etc. Calciferous. 



CORDAI Bill., 1863; Geol. Canada, p. 238, fig. 269. 



- CORDAI Bill., 1865; Pal. Foss., vol. 1, p. 259, fig. 242; p. 412, fig. 395. 



- ? CROTALIFROXS Dwight, 1884; Am. Jour. Sci., 3d series, vol. 27, p. 



253 : figs., 4, 4 a, 5, 6. Rockdale, N. Y. Calciferous. 



CVBELE Bill., 1859; Canadian Naturalist, vol. 4, p. 366, fig. 12 c. 



Miiigau Islands, Beauharnois and in the counties of Leeds and 

 Greenville, Canada. Calciferous. 

 CYBELE Bill., 1863; Geol. Canada, p. 122, fig. 43. 



