1208 BULLETIN 92, UNITED STATES NATIONAL MUSEUM. 



Streptotrochus ione Williams. 



Streptotrochus ione Williams, Proc. U. S. Nat. Mus., 42, 1912, p. 395, pi. 50, 



fig. 13. 

 Silurian (Eastport): West side of Shackford Head, Moose Island, Eastport, 



Maine. 

 Holotype— Cat. No. 58447, U.S.N.M. 



Streptotrochus regularis Williams. 



Streptotrochus regularis Williams, Proc. IT. S. Nat. Mus., 42, 1912, p. 395, pi. 50, 



fig. 12. 

 Silurian (Eastport): West side of Shackford Head, Moose Island, Eastport, 



Maine. 

 Holotype.— Cat. No. 58446, U.S.N.M. 



Streptotrochus sulcatus Williams. 



Streptotrochus sulcatus Williams, Proc. U. S. Nat. Mus., 42, 1912, p. 396, pi. 50, 



fig. 9. 

 Silurian (Eastport): West side of Shackford Head, Moose Island, Eastport, Maine. 

 Holotype.— Cat. No. 58445, U.S.N.M. 



STREPULA Jones and Holl. Genotype: S. concentrica Jones and Holl. 



Strepula Jones and Holl, Ann. Mag. Nat. Hist., 5th ser., 17, 1886, p. 403. — Erause, 

 Zeits. d. d. geol. Gesell., 41, 1889, p. 15.— Miller, N. A. Geol. Pal., 1st. App., 

 1892, p. 711.— Koken, Die Leitfossilien, Leipzig, 1896, p. 40.— Grabau, Bull. 

 Buffalo Soc. Nat. Sci., 6, 1899, p. 305.— Bonnena, Mitt. Min. Geol. Inst. 

 Groningen, 2, 1909, p. 48. 



Strepula irregularis Jones and Holl. 



Strepula irregularis Jones and Holl, Ann. Mag. Nat. Hist., 5th ser., 17, 1886, p. 



404, pi. 13, figs. 5, 7, 8, 9, 15.— Uhich and Bassler, Maryland Geol. Surv., 



Low. Dev., 1913, p. 519, pi. 95, figs. 12-15. 

 Silurian (Wenlock): England. 

 Helderbergian (Keyser): Cumberland, Maryland. 

 Plesiotypes.— -Cat. No. 53281, U.S.N.M. 



Strepula lunatifera Uhich. See Tetradella lunatifera. 



Strepula quadrilirata Uhich. See Tetradella quadrilirata. 



STRIATOPORA Hall. Genotype: S. flexuosa Hall. 



Striatopora Hall, Amer. Jour. Sci. Arts, 2d ser., 1851, p. 400; Rep. Geol. Surv. 

 Iowa, 1, pt. 2, 1858, p. 478.— Billings, Canadian Jour., n. s., 5, 1860, p. 253.— 

 Rominger, Amer. Jour. Sci. Arts, 2d ser., 34, 1862, p. 391. — Meek and 

 Worthen, Geol. Surv. Illinois, 3, 1868, p. 368.— Nicholson, Rep. Pal. Prov. 

 Ontario, pt. 1, 1874, p. 58. — Rominger, Geol. Surv. Illinois, 3, pt. 2, 1876, p. 

 58.— Nicholson, Tab. Corals Pal. Period, 1879, p. 97.— Zittel, Handb. Pal., 1, 

 1879, p. 237.— Roemer, Leth. geog., pt. 1, Leth. Pal., 1883, p. 439.— Hall and 

 Simpson, Pal. New York, 6, 1887, p. 12.— Miller, N. A. Geol. Pal., 1889, 

 p. 205.— Beecher, Trans. Connecticut Acad. Arts Sci., 8, 1891, pp. 209, 211 — 

 Sardeson, Neues Jahrb. Min., Geol. and Pal., Beilage-Band, 10, 1896, p. 304, 

 p. 252.— Lambe, Cont. Can. Pal., Geol. Surv. Canada, 4, pt. 1, 1899, p. 40.— 

 Grabau, Bull. Buffalo Soc. Nat. Sci., 7, 1901, p. 147; Bull. New York State 

 Mus., 45, 1901, p. 147.— Grabau and Shinier, N. A. Index Fossils, 1, 1906, p. 

 94; Zittel-Eastman Textb. Pal., 1900, p. 100; 2d ed., 1913, p. 114. 



