270 CALIFORNIA ACADEMY OF SCIENCES. 



AMPYX. ANOMOCAEE. 

 RUSTiLius Bill., 1865; Pal. Foss., vol. 1, p. 296. 4 miles NE. from 



Portland Creek, N. F. 

 - — RUSTiLics Vogd., 1893; American Geol., vol. 11, p. 108. 

 SEMicosT.\Tu.s Bill., 1865; Pal. Foss., vol. 1, p. 297, fig. 287. Table 



Head and Pistolet Bay, 4 miles NE. from Portland Creek, N. F. 



This species differs so slightly from A. rustitius, which occurs in 



the same bed, that the author hints that they should be united 



under A. riixtilius. 



sEMico.sTATPS Vogd., 1893; American Geol., vol. 11, p. 108, fig. 6. 



Angelixa Salt., 1864; Mem. Geol. Survey United Kingdom, decade xi, pi. 7. 



Type, Angelina sedgwicki Salt. Taconic. 

 hitchcoch Whitf., 1884; Bull. Am. Mus. Nat. Hist. New York, vol. 1, p. 



148, pi. 14, fig. 13. (See Protypus hilchcocJcl.) Baintree, Mass. 

 AxoMOCARE Aug., 1852; Palasont. Scand., p. 24. Taconic. 



ASOMOCABE CHIPPEWAEN.SIS. 



Lonchocephalus chippewaensis Owen, 1852; Rep. Geol. Survey 

 Wisconsin, Iowa and Minnesota, p. 576, pi. 8, figs. 6, 14; pi. 1 a, 

 fig. 9. Red Cedar or Menomonie branch of the Chippewa. 

 Conocephnlites chippewaensis (Owen) Shumard, 1863; Trans. St. 



Louis Acad. Sci., vol. 2, p. 104. 

 Lonchocephus hamulus Owen, 1852; Geol. Survey Wisconsin, Iowa 

 and Minnesota, p. 576, pi. 1 a, figs. 8-12. Near the mouth of 

 the Miniskah River at Mountain Island. 



undet. Trilobite, Owen, 1848; Geol. Reconnoissauce Chippewa Land 



Dist., p. 15, pi. 7, fig. 5. 

 Conoccphalites hamulu.s Shuni., 1863; Acad. Sci. St. Louis, vol. 2, 



p. 104. 

 ConocephalUes hamclcs Hall, 1863; 16th Rep. New York State Cab. 

 Nat. Hist., p. 166, pi. 7, figs. 43, 44; pi. 8, figs. 25, 26. 



HAMULUS Dames, 1884; China (Richthofen), vol. 4, p. 24. 



ConocephalUes patersoni Hall, 1863; 16th Rep. New York State Cab. 

 Nat. Hist., p. 159, pi. 7, figs. 45, 46. Trempleau, Wis. Dicello- 

 cephalus zone. 



patersoni Dames, 1884; China (Richthofen), vol. 4, \i. 24. 



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



vol. 8, p. 59, pi. 9, fig. 17. West slope of Prospect Mountain, 

 Eureka District, Nev. Olenellus zone. 



? PARVUM Wal., 1886; Bull. U. S. Geol. Survey, No. 30, p. 209, pi. 



25, fig. 1. 



? PARVUM Wal., 1890; 10th Rep. U. S. Geol. Survej', p. 653, pi. 96, fig. 2. 



Prof. Matthew in a letter to the author says : "The long prominent 

 glabella and volutted frontal limb, with furrows between it and 

 the glabella, are characters of Strenuella; also, the prominent eye 

 lobes and strong occipital ring." 



