266 CALIFORNIA ACADEMY OF SCIENCES. 



AGNOSTUS. 



PARILIS Vogd., 1S92; Americiui Geol., ^'ol. 4, p. 394, pi. 10, fig. 4. 



Sec. LiBvigati. 

 PARTiTus Matt., 1888; Trans. Roy. Soc. Cauada, vol. 3, p. 68, pi. 7, 



fig. 2 a-b. 

 PisiKORMis (Liuue) Matt., 1891; Trans. Roy. Soc. Canada, vol. 9, 



p. 59, pi. 13, fig. 1 a-b. (Variety.) St. John. 

 PROLONGUS H. & W., 1877; U. S. Geol. Expl. 40th Par., vol. 4, p. 230, 



pi. 1, figs. 30, 31. Eureka, Nevada. Tacouic. 

 PROLONGUS VVal., 1884; Pal. Eureka Dist., Mou. U. S. Geol. Survey, 



vol. 8, p. 28. 

 PROLONGCS Brogg., 1886; Geol. Fiiren Stock. Forliandl, vol. 8, p. 207. 



ci. Agnostics nudus Beyr. var. 

 PROLONGUS Vogd., 1892; Amei-ican Geol., vol. 4, p. 394. pi. 10, fig. 10. 



Sec. Lajvigati. 

 REGULARi.s Matt., 1888; Trans. Roy. Soc. Cauada, vol. 3, p. 67, pi. 7, 



fig. 1 a-c. Portland. Hauford and Porter's brooks, etc. 

 RE(iULARis Vogd., 1892; American Geol., vol. 4, p. 387, pi. 10, fig. 11. 



St. John. Sec. Limbati. 



rkhmoiuUnHis Wal., 1884; Pal. Eureka Dist., Hon. U. S. Geol. Survey, 



vol. 8, p. 24, pi. 9, fig. 10. Prospect Mountain, Nevada. 

 Syn. Agnostus americanus Vogd., 1892; American Geol., vol. 4, 



p. 392, pi. 9, fig. 11. 

 RicHMONiJENsis Brogg., 1886; Geol. Foren Stock. Fiirhandl, vol. 8, 



p. 207. cf. Agn. nnthorsli Briigg. 

 SECLURUS Wal., 1884; Pal. Eureka Dist., Mon. U. S. Geol. Survey, 



vol. 8, p. 25, pi. 9, fig. 14. Secret Canon, Nevada. Taconic. 

 SECLURUS Briigg., 1886; Geol. Fiiren Stock. Forhandl, vol. 8, p. 207. 



cf. Agnostus parvifrons Linrs. Paradoxides zone. 



SECLURUS Vogd., 1892; American Geol., vol. 4, p. 395, pi. 10, fig. 16. 



TESSELLA Matt., 1888; Trans. Roy. Soc. Canada, vol. 3, p. 71, pi. 7, 



figs. 7, 7 a-b. Porter's brook, St. Martins. 

 TESSELLA Vogd., 1892; American Geol., vol. 4, p. 385, pi. 9, fig. 4. 



Agnostus tessella is a Brevifrons with an indistinct anterior lobe 



to the glabella. 

 UMBO Matt., 1888; Trans. Roy. Soc. Canada, vol. 3, p. 71, pi. 7, fig. 8, 



8 a-b. Porter's brook. 

 UMBO Vogd., 1892; American Geol., vol. 4, p. 387, pi. 10, fig. 9. Sec. 



Par vif routes. 

 viR Matt., 1888; Trans. Roy. Soc. Canada, vol. 3, p. 69, pi. 7, fig. 3. 



Portland and Hanford brook, etc. 

 also, var. concixnus, p. 70, pi. 7, figs. 4, 4 a-c. Tacouic. 



VIR Vogd., 1892; American Geol., vol. 4, p. 388, pi. 10, fig. 14. Sec. 



Limbati. 



also, var. concinnus, p. 389, pi. 9, fig. 13. 



similis Hartt. (See Agnostus acadicus.) 



