1178 BULLETIN 92, UNITED STATES NATIONAL MUSEUM. 



Spirifer? similior (Winchell and Marcy). 



Spirifera (Martinia) Bimilior Winchell and Marcy, Mem. Boston Soc. Nat. Hist., 



1,1865, p. 93. 



Pentamerus similior Hall, 20th Rep. New York State Cab. Nat. Hist., 1868, p. 397. 

 Niagaran (Racine): Bridgeport, Illinois. 



SPIRIFER STAMINEA Emmons. See Spirifer (Delthyris) crispus. 



Spirifer (Delthyris) subsulcatus (Hall). 



Spirifer subsulcata Hall (not Dalman, 1828), Canadian Nat. Geol., 5, 1860, p. 145. 

 Spirifera subsulcata Dawson, Acadian Geol., 3d ed., 1878, p. 597. Miller, N. A. 



Geol. Pal., 1889, p. 376. 

 Silurian (Moydart, Stonehouse): Arisaig, Nova Scotia. 



STpirifer (Delthyris) sulcatus (Hisinger). 



Delthyris sulcata Hisinger, Petref . Sueccia, 1837, p. 73, pi. 21, fig. 8. Schuchert, 



Bull. U. S. Geol. Surv., 87, 1897, p. 208. 

 Spirifer sulcatus Hall, Amer. Jour. Sci., 20, 1849, p. 228; Pal. New York, 2, 1852, 



p. 261, pi. 54, fig. 2. Marcou, Geol. Map United States and British Prov., 



etc., 1853, p. 27, pi. 2, fig. 4. Billings, Canadian Nat. Geol., 1, 1856, p. 137, 



pi. 2, fig. 7. Safford, Geol. Tennessee, 1869, p. 315, figs. 3, 4. Hall, 2d Ann. 



Rep. New York State Geol., 1883, pi .60, figs. 1-4. Hall and Clarke, Pal. 



New York, 8, pt. 2, 1895, pi. 35, figs. 1-4. 

 Spirifer (Delthyris) sulcatus Grabau, Bull. New York State Mus., 45, 1901, p. 200, 



fig. 120; Bull. Buffalo Soc. Nat. Sci., 7, 1901, p. 200, fig. 120. Grabau and 



Shinier, N. A. Index Fossils, 1, 1907, p. 319, fig. 401. 



Spirifera sulcata Lesley, Geol. Surv. Pennsylvania, Rep. P 4, 1889, p. 1031, fig. 

 Delthyris rugatina Conrad, Jour. Acad. Nat. Sci. Philadelphia, 8, 1842, p. 261. 

 Delthyris decemplicatus Hall, Geol. New York, Rep. 4th Dist., 1843, p. 105, 



fig. 4. Owen, Amer. Jour. Sci. Arts, 48, 1845, p. 313, figs. 4, 4a. 

 Spirifer decemplicatus Emmons, Man. Geol., 1860, p. 109, fig 1 . 99. 

 Spirifera decemplicata Lesley, Geol. Surv. Pennsylvania, Rep. P 4, 1889, p. 1005, 



figs. 

 Middle Silurian: Europe; Lockport, Rochester, etc., New York; Hamilton, 



Ontario (Clinton). 



Spirifer (Delthyris) sulcatus submersus (Grabau). 



Spirifer sulcata mut. submersa Grabau, Michigan Geol. Surv., Geol. Ser., 1, 1909, 



p. 136, pi. 18, figs. 4-6. 

 Upper Monroan ( Amherstburg) : Detroit River, opposite Amherstburg, Ontario. 



Spirifer (Delthyris) swallowensis (Foerste). 



Spirifer swallowensis Foerste, Jour. Geol., 11, 1903, p. 708; Bull. Sci. Lab. Deni- 



son Univ., 14, p. 93, pi. 2, fig. 33. 

 Niagaran (Waldron): Swallow Bluff, Tennessee. 



SPIRIFER TENUISTRIATUS Shaler. See Spirifer (Eospirifer) radiatus. 



SPIRIFER (CYRTTA) TRAPEZOIDAUS Hall and Whitfield. See Cyrtia exporrecta. 



Spirifer trentonensis Emmons. 



Spirifer trentonensis Emmons, Amer. Geology, 1, pt. 2, 1855, p. 235, pi. 15, fig. 20. 

 Spirifera trentonensis Lesley, Geol. Surv. Pennsylvania, Rep. P 4, 1890, p. 1031, 



fig. 

 Trenton: New York. 



Observation. Not recognizable without a restudy of the type specimen. If a 

 Trenton species, probably a Platystrophia, 



