CATALOGUE OF TRILOBITES. 277 



ATOPS. 



Erinnys Salt., a preoccupied generic name; the same is true of 



Salteria, used for a genus of fossil Crustacea. 

 Conocoryphe BAILEYI Matt., 1890; Trans. Royal Soc. Canada, vol. 



8, p. 135, pi, 11, fig. 10. Paradoxides zone. 

 Conocephalites CALCIFERA Wai., 1879; 32d Rep. New York State 



Mus. Nat. Hist., p. 129. Saratoga County, N. Y. Calciferous. 

 Conocephalites CORDILLDR.E Roniinger, 1887; Proc. Acad. Nat. Sci., 



Phila., p. 17, pi. 1, fig. 7. Mount Stephens, B. C. Taconic. 



Conocephalites ELEGANS Hartt, 1868; Acadian Geol. (3d ed.),. p. 650. 



RadcliflTs Millstream, N. B. 

 Conocoryphe ELEGANS Wai., 1884; Bull. U. S. Geol. Survey, No. 10, 



p. 33, pi. 4, figs. 2, 2 a-b. 



yemini-spinosus Hartt. (Syn., Atops matthewi.) 



Conocephalites HARTTI Wai., 1879; 32d Rep. New York State Mus. 



Nat. His., p. 130. Saratoga County, N. Y. Calciferous. 



Conocephalites MATTHEWI Hartt, 1868; Acadian Geol., p. 646, fig. 224. 



Radcliffe's Millstream and St. John. 

 Conocephalites MATTHEWI Matt., 1884; Trans. Royal Soc. Canada, vol. 



1, p. 103, pi., figs. 6-21. 

 Syn., Harttia matthewi Wai., 1884; Bull. U. S. Geol. Survey, No. 



10, p. 19, pi. 1, tig. 3. 

 Conocoryphe MATTHEWI Wai., 1884; Bull. U. S. Geol. Survey, No. 



10, p. 28, pi. 4, figs. 1, 1 a-b. 

 Conocephalites OPTATUS Hall, 1863; 16th Rep. New York State Cab. 



Nat. Hist., p. 222, pi. 5 a, fig. 7. Trempaleau, Wisconsin. Dike- 



locephalus zone. 



TRILIXEATCS Eminous, 1844; Taconic System, p. 20, fig. 1, pi. 2, fig. 



3. Reynolds Inn, 7 miles north of Union Village, Washington 

 County, N. Y. Taconic. 



Conformity to the rules governing nomenclature, which are intended 

 to render justice to every investigator, the genus Atops Emmons, 

 1844, should replace that of Conocoryphe Corda described in 1847. 

 The original figure of this species was the first primodial fossil 

 described from American rocks; this species -whhOlenellus asaph- 

 oides Emm. clearly defined the Taconic System in 1844 and its 

 position below Murchison's Lower Silurian of 1837. The fact 

 that the original Cambrian was the same as the Lower Silurian 

 cannot be recalled and in justice to Sedgwick it must be given to 

 that system. 



TRILIXEATCS Emmons, 1847; Nat. Hist. New York, Agriculture, vol. 



1, p. 64, fig. 8, pi. 14, tig. 3. 

 Syn., Calymene beckii Hall, 1847; Pal. New York, vol. 1, p. 252, pi. 



67, tigs. 4 a, 4e. 

 TRILINEATUS Haldemau, 1848; Am. Jour. Sci., 2d series, vol. 5, p. 107. 



