348 CALIFORNIA ACADEMY OF SCIENCES. 



PTYCHOPARIA. 



Creplcephalus (Bathi/urus) angulatus H. & W., 1877; U. S. Geol. 

 Expl. 40th Par., Pala^ont., vol. 4, p. 220, pi. 2, fig. 28. Potsdam 

 group of Pogonip Mt., White Pine, Nev. 



? ANGULATUS Wal.. 1884; Pal. Eureka Dist., Mou. U. S. Geol. Survey, 



vol. 8, p. 269. 



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



vol. 8, p. 91, pi. 12, fig. 18. Hamburg Ridge, Nev. Cambrian. 



Conoceph. antiqua'Tus Salt., 1859; Quart. Jour. Geol. Soc. London, 



vol. 15, p. 554, fig. 2. Georgia, Vermont. Taconic. 



Conoceph. anatinus Hall, 1863; 16th Kep. New York State Cab. Nat. 



Hist., p. 158, pi. 7, figs. 34, 35, and pi. 8, fig. 29. Lake Pepin, also 



Tremapleau, Wis. Potsdam. 



Grepicephalus (Loganellus) anytus H. & W., 1877; U. S. Geol. Expl., 



40th Par., vol. 4, p. 219, pi. 2, figs. 19-21. 



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



8, p. 56, pi. 9, fig. 26. Schell Creek, Nev. Taconic. 



Lisostracus A.'SYTva Brogg., 1886; Geol. Foreu. Stock. Forhandl., vol. 

 8, p. 212. 



ATTLEBOREXsis, Shaler & Foerste, 1888; Bull. Mus. Comp. Zool. 



Harvard College, vol. 19, p. 39, pi. 2, fig. 14. Attleborough, Mass. 



ATTLEBORENSis Wal., 1890; 10th Eep. U. S. Geol. Survey, p. 649, pi. 



95, fig. 2. Olenellus zone. 

 Conoceph. aurora Hartt, 1868; Acadian Cieology, p. 653. (See Ptycho- 



paria ouangondianus.) 



Conoceph. billingsi Shum., 1861; Am. Jour. Sci., 2d series, vol. 32, 



p. 220. Morgan Creek, Burnet Co., Texas. Taconic. 



Conoceph.? binodosus Hall, 1863; 16th Eep. New York State Cab. Nat. 



Hist., p. 160, pi. 7, fig. 47. Osceola Mills, Wis. Potsdam. 



Solenopleura? breviceps Wal., 1884; Pal. Eureka Dist., Mon. U. S. 



Geol. Survey, vol. 8, \}. 49, pi. 10, fig. 9. Prospect Mt. group in 

 the Hamburg shale north of Adams Hill, Nev. Taconic. 



burnetensis Wal., 1880; Proc. U. S. Nat. Mus., vol. 13, p. 272, pi. 



21, fig. 1. Tatur Hill, Burnet Co., Texas. Taconic. 



Conocephalites calymenoides Whitf., 1878; Ann. Eep. Geol. Survey 



- Wisconsin, 1877, p. 52. Eau Claire, Wis. Taconic. 



Conocephalites calymenoides Whitf., 1882; Geol. Wisconsin, vol. 4, 

 p. 179, pi. 3, figs. 2-5. 



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



vol. 8, p. 48. 

 Creplcephalus (Loganellus) centralis Whitf., 1880; Geol. Eesour<!es 

 Black Hills Dakota, p. 341, pi. 2, figs. 21-24. Castle Creek, Black 

 Hills, Dakota. Taconic. 



? (subgenus?) clavata Wal., 1887; Am. Jour. Sci., 3d series, vol. 34, 



p. 198, pi. 1, fig. 3. 1^ miles south of North Granville, etc., 

 Washington Co., N. Y. (See Protypus clavata.) Taconic. 



