CATALOGUE OF TRILOBITES. 335 



PHACOPS. PHILLIPSIA. 



Calymene bufo var. RAXA Green, 1832; Hon. Tril. N. A., p. 42, 



cast 11, 12. 

 Calymene bufo var. RAXA Hall, 1843; Geol. New York, 4th Geol. Dist., 



p. 201, pi. 14. 

 Syu., Calymene bufo Owens, 1844; Geol. Expl. Iowa, Wisconsin and 



Illinois, p. 74, pi. 12, fig. 1. 



Calymene bufo Emmons, 1860; Manual Geol., p. 138, wood- 

 cut 124, fig. 6. 



RANA Hall, 1861; Description New Species Fossils, p. 65. 



- RANA Hall, 1862; loth Rep. New York State Cab. Nat. Hist., p. 93, 



pi. 10, fig. 12. 



- RAXA M. & W., 1868; Geol. Survey Illinois, vol. 3, p. 447, pi. 11, 



figs. 1 a-e. 



RAXA Nicholson, 1873; Pal. Province Ontario, p. 123, figs. 5, 6 a. 



- RAXA Hall, 1876; Illus. Dev. Foss. Crust., pi. 6, figs. 14, 15; pi. 7, 

 figs. 1-11; pi. 8, tigs. 11-17. 



- RAXA Whitf., 1882; Geol. Wisconsin, vol. 4, p. 339, pi. 26, figs. 17-19. 



- RAXA Wai., 1884; Pal. Eureka Dist. Mon. U. S. Geol. Survey, vol. 8, 



p. 207. 



- RAXA Hall, 1888; Pal. New York, vol. 7, p. 19, pi. 7, tigs. 1-11; pi. 8, 



figs. 1-18; pi. 7 a, figs. 21-33. This species is common to the 

 Hamilton group of New York, Indiana, Illinois, Iowa, Wisconsin, 

 Maryland, Nevada and Province of Ontario, Canada. 



- RAXA Clarke, 1888; Jour. Morphology, vol. 2, p. 253, pi. 21. 



- TRAGAXUS Bill., 1863; Proc. Portland Soc. Nat. Hist., vol. 1, p. 124, 



pi. 1, figs. 26, 27. Square Lake, Maine. cf. Phacops fecundus 



Barr. Silurian. 



Calymene? TRISULCATUS Hall, 1843; Geol. New York, 4th Geol. Dist., 



p. 72, fig. 9. In the green shales at Rochester, N. Y. Clinton. 



TRISULCATCS Hall, 1852; Pal. New York, vol. 2, p. 300, pi. 66 a, figs. 



3 a, b.. 

 PH^THONIDES Ang., 1852; Pal. Scand., p. 21. (See Proetus and Brachy- 



metpus.) 

 PHILLIPSIA Portl., 1843; Rep. Geol. Londonderry, etc., p. 315. Dr. Henry 



Woodward suggests the following brief diagnosis of the characters 



of the genera Phillipsia and Grijjithides : 



PHILLIPSIA. GRIFFITHIDES. 



1 . Sides of the glabella nearly parallel. Glabella pyriform. 



2. Marked by either two or three short No short lateral furrows on the 



lateral furrows. glabella. 



3. Basal lobes continous with the Basal lobes distinct from the gla- 



glabella. bella. 



4. Eyes large, reniform. Eyes small, suboval. 

 bufo. (See Grt/ithides bufo.) 



