270 CALIFORNIA ACADEMY OF SCIENCES. 



AMPYX. ANOMOCARE. 



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



Portland Creek, N. F. 



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



SEMICOSTATUS 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. rustilius, which occurs in 

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

 under A. rustilius. 



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

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



Type, Angelina sedgwicki Salt. Taconic. 



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



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

 ANOMOCARE Aug., 1852; Palseont. Scand., p. 24. Taconic. 



ANOMOCARE CHIPPEWAENSIS. 



Lonchocephalus CHIPPEWAENSIS Owen, 1852; Eep. Geol. Survey 

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

 fig. 9. Ked Cedar or Menomouie branch of the Chippewa. 

 Conocephalites 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 Kiver at Mountain Island. 



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



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

 Conocephalites HAMULUS Shum., 1863; Acad. Sci. St. Louis, vol. 2, 



p. 104. 

 Conocephalites HAMULUS Hall, 1863; 16th Kep. New York State Cab. 



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



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

 Conocephalites PATERSONI Hall, 1863; 16th Kep. New York State Cab. 



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

 cephalus zone. 



PATERSONI Dames, 1884; China (Kichthofeii), vol. 4, p. 24. 

 --?PARVUM Wai., 1884; Pal. Eureka Dist., Mon. U. S. Geol. Survey, 



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



Eureka District, Nev. Olenellus zone. 

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



25, fig. 1. 

 - ? PARVUM Wai., 1890; 10th Kep. U. S. Geol. Survey, 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." 



