342 CALIFORNIA ACADEMY OF SCIENCES. 



PROETUS. 



LONGiC-AUDUs Hall, 1876; Illus. Dev. Foss. Crust., pi. 20, figs. 32-34. 



LONGICAUDUS Williams, 1881; Am. Jour. Sci., 3d series, vol. 21, p. 156. 



? LONGICAUDUS Hall, 1888; Pal. New York, vol. 7, p. 131, pi. 20, figs. 



32-34. Near Madison, Kansas, NE. of Des Moines, Iowa. 

 MACROBius Bill., 1863; Proc. Portland Soc. Nat. Hist., vol. 1, p. 123, 



pi. 1, fig. 24. Silurian. 

 MACROCEPHALUs Hall, 1861; Des. New Sjiecies Foss., pp. 77, 79. In 



Hamilton group, Genesco, Moscow, Pavilon, etc., N. Y. 

 MACROCEPHALUS Hall, 1862; 15tli Eep. New York State Cab. Nat. 



Hist., pp. lOo, 107. Also var. a. idem., p. 79, at Moscow and 



Bloomfield, and 18-Mile Creek, N. Y. 



MACROCEPHALUS Hall, 1876; Hlus. Devonian Foss. Crust., pi. 21, figs. 



10-21. 



MA(!K0CEPHALUS Hall, 1888; Pal. New York, vol. 7, p. 116, pi. 21, figs. 



10-21; pi. 23, fig. 30. 

 Calymene makginalis Con., 1839; Ann. Rep. Pal. Dept. New York 

 Geol. Survey, p. 66. In the TuUy limestone near Ovid, Seneca 

 county, N. Y. 



MARGINALI8 Hall, 1861; Des. New Species Foss., p. 76. Hamilton. 



MARGiNALis Hall, 1862; 15tli Rep. New York State Cab. Nat. Hist.. 



p. 104. 



MARGINALIS Hall, 1876; Illus. Devonian Foss. Crust., pi. 21, figs. 



24 28. 



MARGINALIS VVal., 1884; Pal. Eureka Dist. Mon. U. S. Geol. Survey, 



vol. 8, p. 210. This species is referred to Proetus nevcuke by Hall; 

 Palaeont. N. Y., vol. 7, p. 129. 



MARGINALIS Hall, 1888; Pal. New York, vol. 7, p. 122. 



MiCROGEMMA Hall, 1888; Pal. New York, vol. 7, p. 109, pi. 22, figs. 



33, 34. Le Roy, Canandaigua, Williamsville, N. Y.; Falls of the 



Ohio. Upper Helderberg. 



Phillipsia minu.scula Hall, 1876; Illus. Devonian Foss. Crust., pi. 20, 



fig. 17. Schoharie, N. Y. Upper Helderberg. 

 MiNUTUS Herr., 1889; Bull. Deuison Univ., vol. 4, p. 56, pi. 1, figs. 



7 a, b. Kiuderhook. 



MINUTUS Herr., 1890; American Geologist, vol. 5, p. 254. 



MissouRiENSis Shum., 1855; 1st and 2d Rep. Geol. Missouri, p. 196, 



pi. B, figs. 13 a, b. Hannibal, Louisiana and Chouteau Springs, 

 Missouri; also Granville, Ohio. Waverly group. 

 Syu., auriculatus Hall, 1861; Des. New Species Foss., p. 79. 



aurkulatuH Hall, 1862; 15th Rep. New York State Cab. Nat. 



Hist., p. 107. 

 Phillipsia {Proeius) auriculatus Herr., 1889; Bull. Denison 



Univ., vol. 4, p. 34, pi. 1, fig. 14. 

 Phillipsia shumardi Herr., 1887; Bull. Denison Univ., vol. 2, 

 pp. 58, 69, pi. 7, fig. 14. 



