CATALOGUE OF TRILOBITES. 277 



ATOPS. 



Erinnyn Salt., a preoccupied geueric name; the same is true of 



Salteria, used for a geuiis of fossil Crustacea. 

 Conocorypke baileyi Matt., 1890; Traus. Koyal Soc. Canada, vol. 



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

 Conocephalites calcifera Wal., 1879; 32d Rep. New York State 



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

 Conocephalites coRDiLLDKiE Rominger, 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. 



Eadcliffs Millstream, N. B. 

 Conocorijphe elegans Wal., 1884; Bull. U. S. Geol. Survey, No. 10, 



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



f/emiiii-spinosus Hartt. (Syn., A tops matthtwi .) 



Conocephalites hartti Wal., 1879; 32d Eep. New York State Mus. 



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



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



Eadclifife's Millstream and St. John. 

 Conocephalites matthewi Matt., 1884; Trans. Pioyal Soc. Canada, vol. 



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

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



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

 Conocori/phe matthewi Wal., 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. 

 TRiLiNEATus Emuious, 1844; Taconic System, p. 20, fig. 1, pi. 2, fig. 



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



Couutj', N. Y. Taconic. 



Conformity to the rules governing nomenclature, which are intended 



to render justice to everj' investigator, the genus Atops Emmons, 



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



The original figure of this species was the first primodial fossil 



described from American rocks; this species \\\X\\Olenellus 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. 



TRiLiNEATu.s Emmous, 1847; Nat. Hist. New York, Agriculture, vol. 



I, p. 64, fig. 8, pi. 14, fig. 3. 

 Syn., Cahjviene heckii Hall, 1847; Pal. New York, vol. 1, p. 252, pi. 



67, figs. 4 a, 4 e. 

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



