964 BULLETIN 92, UNITED STATES NATIONAL MUSEUM. 



PHACO PS— Continued. 



2, 1854, p. 499.— Salter, Cat. Camb. and Sil. Foss., 1873, p. 51.— Angelin, Pal. 

 Scandinavica, 3d ed., Holmiae, 1878, p. 8. — Salter, Mon. British Tril., Pal. 

 Soc, 1864, p. 14. — Schmidt, Mem. 1'Acad. Imp. Sci. St. Petersburg, 7th ser., 

 30, 1881, pp. 61, 66.— Zittel, Handb. Pal., 2, 1885, p. 614.— Hall and Clarke, 

 Pal. New York, 7, 1888, p. xxvii, fig., p. xxix.— Miller, N. A. Geol. Pal., 1889, p. 

 560.— Whidborne, Mon. Dev. Fauna South England, 1, Pal. Soc, 1889, p. 2 — 

 Miller, N. A. Geol. Pal., 1st, App., 1892, p. 710.— Koken, Die Leitfossilien, 

 Leipzig, 1896, p. 31, fig. 21, figs. 3, 4. — Beecher, Amer. Jour. Sci., 4th ser., 3, 

 1897, p. 105, pi. 3, fig. 33— Grabau, Bull. Buffalo Soc. Nat. Sci., 6, 1899, p. 

 313. — Grabau and Shimer, N. A. Index Fossils, 2, 1910, p. 321. — Raymond, 

 Zittel-Eastman Textb. Pal., 1913, p. 726. 



Phacops callicephalus Hall. See Pterygometopus callicephalus. 



Phacops handwerki Weller. 



Phacops handwerki Weller, Bull. Chicago Acad. Sci., Nat. Hist. Surv., 4, pt. 2, 



1907, p. 271, pi. 24, figs. 6, 7. 

 Niagaran (Racine): Near Lemont, Illinois. 



Phacops limulurus Hall. See Dalmanites limulurus. 



Phacops orestes Billings. See Phacopidella orestes. 



Phacops pulchellus Foerste. 



Arionellus Foerste, Bull. Sci. Lab. Denison Univ., 1, 1885, p. 114, pi. 



14, fig. 3. 

 Phacops pulchellus Foerste, ibid., 2, 1887, p. 99, pi. 8, figs. 4, 20, 21; Proc. Bost. 



Soc. Nat. Hist., 24, 1890, p. 268, pi. 6, figs. 20-21.— Grabau and Shimer, N. A. 



Index Fossils, 2, 1910, p. 322. 

 Phacops trisulcatus Foerste, Geol. Surv. Ohio, 7, 1893, p. 529, pi. 26, fig. 3; pi. 27, 



figs. 4, 20, 21; pi. 31, figs. 20, 21. 

 Phacops cf. pulchellus Kindle, 28th Ann. Rep. Dep. Geol. Nat. Res. Indiana, 



1904, p. 484, pi. 24, figs. 9, 12. 

 Upper Medinan (Brassfield): Dayton, Ohio; Cumberland Gap, Tennessee. 

 Niagaran: Connor's Mill, Georgetown and Pendleton, Indiana. 



Phacops stokesii Dawson. See Proetus stokesi. 



Phacops trisulcatus (Hall). 



Calymene? trisulcata Hall, Geol. New York, pt. 4, 1843, p. 74, fig. 9, p. 72; tab. 



org. rem. 8, fig. 9.— Lesley, Geol. Surv. Pennsylvania, Rep. P 4, 1889, p. 110, 



fig- 

 Phacops triculcatus Hall, Pal. New York, 2, 1852, p. 300, pi. 66, figs. 3a-b. 

 Clinton (Williamson): Rochester, etc., New York. 



Phacops trisulcatus Foerste. See Phacops pulchellus. 



PHJENOPORA (Hall). Genotype: P. explanata Hall. 



Pheenopora Hall, Pal. New York, 2, 1852, p. 46; Amer. Jour. Sci. Arts, 2d ser., 11, 

 1851, p. 399— Pictet, Traite de Pal., 2d ed., 4, 1857, p. 169.— Ulrich, Jour 

 Cincinnati Soc. Nat. Hist., 5, 1882, p. 152— Foerste, Bull. Sci. Lab. Denison 

 Univ., 2, 1887, p. 157.— Miller, N. A. Geol. Pal., 1889, p. 314— Ulrich, Geol. 

 Surv. Illinois, 8, 1890, p. 392; Geol. Minnesota, 3, 1893, p. 173— Pocta, Syst. 

 Sil. Centre Boheme, 8, pt. 1, 1894, p. 8.— Ulrich, Zittel's Textb. Pal. (Engl, 

 ed.), 1896, p. 279— Simpson, 14th Ann. Rep. State Geol. New York for 1894, 



