304 CALIFORNIA ACADEMY OF SCIENCES. 



DICELLOCEPHALUS. 



BiLOBATcs Wal., 1884; Pal. Enreka Dist. Mon. U. S. Geol. Survey, 



vol. 8, p. 40. East side Sierra Valley, east of Pinnacle Peak, 



Eureka Dist., Nevada. 

 CRASSIMARGINATUS Whitf., 1882; Geol. Wisconsin, vol. 4, p. 344, pi. 



27, fig. 14. Lagrange Mt., Minnesota. Potsdam. 



Syn., pepinenm (Hall); 16th Rep. New York State Cab. Nat. Hist. 



ExpL, pi. 11, fig. 2. 



? corax Bill., 1865; Pal. Foss., vol. 1, p. 334, figs. 322 a, b. Point 



Levis, Quebec. Referred to Olenoides? corax Wal., 1884; Bull. 



U. S. Geol. Survey, No. 30, p. 184. Cf. paraboUna tipinulosn 



Wahl. 



CRISTATUS Bill., I860; Canadian Naturalist, vol. .1, p. 312, fig. 10. 



Taoonic. 

 CRISTAT0S Bill., 1865^ Pal. Foss., vol. 1, p. 404, fig. 384. Point 



Levis, Quebec. This species might be referred to the genus 



Olenoides. 

 DEViNEi Bill., 1865; Pal. Foss., vol. 1, p. 195, figs. 180, 181. Point 



Levis, Quebec. Probably of the genus Ptychoparia. 



KATONi Whitf., 1878; Ann. Rep. Geol. Survey Wisconsin, 1877, p. 65. 



Devil's Lake region, Baraboo, Wis. Lower Magnesian. 



EATONi Whitf., 1882; Geol. Wisconsin, vol. 4, p. 202, pi. 4, figs. 11- 



17; pi. 10, figs. 4, 5. Devil's Lake Dist., Baraboo, Wis. ^ 

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



vol. 8, p. 89, pi. 9, fig. 19. Prospect Mt., Secret Canon, etc., Nev. 



Taconic. 

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



8, p. 89, pi. 12, figs. 12 a, b. Hamburg Ridge, Eureka Dist., 



Nev., Pogonip group. 

 FLABELLiEER H. & W. , 1877; U. S. Gcol. Expl. 40th Par., vol. 4, p. 



227, pi. 2, figs. 29, 30. Pogonip Mt. and Eureka Dist., Nev. 



Potsdam. 



Jfagicaudus White. (See Olenoides? Jlagricmida.) 



granulosus Owen. (See Plychaspis granulosa.) 



.? gothicus H. & W. (See Dorypyge gothicns.) 



HisiNGERi Bill., 1865; Pal. Foss., vol. 1, p. 196, fig. 182. Point Levis, 



Quebec. Probably of the genus Ptychoparia. 



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



vol. 8, p. 90, pi. 1, fig. 10. Hamburg Ridge, Nev. Pogonip. 



? ioicensis Owen. (See Lonchocephalus iovsensis (Owen). 



lOLE Wal., 1884; Pal. Eureka Dist. Mon. U. S. Geol. Survey, vol. 8, 



p. 43, pi. 10, fig. 19. Prospect Mt., Bullwhacker Mine, Nev. 



Taconic. 



LATiFRONS Shum., 1863; Trans. Acad. Sci. St. Louis, vol. 2, p. 101. 



Potsdam. 



