scHccHEBT.] INDEX AND BIBLIOGRAPHY. 393 



Spirifer hurouieusis Castelnaii = Spirifer granulosus. 



Spirifer huronensis A. AViiichell. Portage (Dev.). 



Spirifer buroneiisis A. Wiuchell, Proc. Acad. Nat. Sci. Philadelphia, 1862, p. 406. 

 Loc. Port aiix Barques, Michigan. 



Spirifer imbrex Hall. Burlington (L. Carb.). 



Spirifer imbrex Hall, Geol. Survey Iowa, I, Pt. II, l>i:>>^, p. 601, pi. 1,3, fig. 2.— 

 Hall and Clarke, Pal. New York, VIII, Pt. II, 1893. pp. 26, 38, pi. 31, ligs. 11, 12. 



Spirifera imbrex Hall, Second Ann. Kep. N. Y. State Geol., 1883, pi. 56, figs. 

 11, 12. 



Loc. Burlingtou, Iowa; Hannibal and Louisiana, Missouri. 



Spirifer inaequivalvis Castelnau=Rliyncliotrema ina?quivalvis. 

 Spirifer incertus Hall. Burlington (L. Carb.). 



Spirifer incerta Hall, Geol. Survey Iowa, I, Pt. II, 1858, p. 602, pi. 13, fig. 3. 



Loc. Burlington, Iowa. 



Spirifer inconstans Hall=Spirifer nobilis. 



Spirifer increbescens Hall. Kaskaskia (L. Carb.). 



Spirifer increbescens Hall, GeoL Survey Iowa, I, Pt. II, 1858, p. 706, pi. 27, tig. 



6.— Hall and Clarke, Pal. New York, VIII, Pt. II, 1893, pp. 27, 39, pi. 30, 



figs. 27-30; pi. 31, figs. 1-3.— Keyes, Geol. Survey Mi-ssouri, V, 1895, p. 82. 

 Spirifera increbescens Hall, Second Ann. Rep. N. Y. State Geol,, 1883, pi. 55, tigs. 



27-30; pi. .56, figs. 1-3. 

 Loc. Kaskaskia and Chester, Illinois; Kentucky. 

 Ohs. Not synonymous with S. bisulcatus Sowerby, as stated by Meek and Saflford. 



It has also boon referred to S. trigonalis (Martin). 



Spirifer increbescens americanus Swallow. Kaskaskia (L. Carb.). 



Spirifer increbescens var. americana Swallow, Trans. St. Louis Acad. Sci., II, 



1866, p. 410. 

 Loc. Illinois and Missouri. 



Ois. Regarded by Keyes as a synonym for S. increbescens. 

 Spirifer increbescens transversalis Hall. Kaskaskia (L. Carb.). 



Spirifer increbescens var. transversalis Hall, Geol. Survey Iowa, I, Pt. II, 1858, 



p. 708, pi. 27, fig. 6. 

 Loc. Kaskaskia and Chester, Illinois. 



Spirifer inequieostatus Owen = Spirifer cameratus. 



Spirifer iiisolitus Wincbell=Martiuia ? insolita. 



Spirifer intermedins Hall. Oriskany (Dev.). 



Spirifer intermedia Hall (non Brongniart, 1829), Pal. New York, III, 1859, p. 424. 



Loc. Cumberland, Maryland. 



Spirifer inutilis Hall. Upper Devonian. 



Spirifer inutilis Hall, Geol. Survey Iowa, I, Pt. II, 1858, p. 505, pi. 4, fig. 4. 

 Spirifera inutilis Whiteaves, Cont. Canadian Pal., I, 1891, p. 223. 

 Lov. Independence, Iowa; Athabasca River, Canada. 



Spirifer iowaensis Owen. Middle Devonian. 



Spirifer iowonsis Owen, Geol. Survey Iowa, Winconsin, and Minnesota, 1852, p. 



585, pi. 3, lig. 1. [See specimens in U. S. Nat. Mus., Cat. Invert. Foss., 17925.] 

 Spirifer pennatus Owen (non Atwater), Ibidem, 1852, p. 585, pi. 3, figs. 3, 8. 



[Ibidem, Cat., 17919, 17920.] 

 Spirifer ligus Owen, Ibidem, 1852, p. 585, pi. 3, fig. 4, and pi. 3A, fig. 2 [Ibidem, 



Cat., 17921, 17922].— Hall and Clarke, Pal. New York, VIII, Pt. II, 1893, 



pp. 31, 39, pi. 22, figs. 19-24; pi. 29, fig. 13.— Keyes, Geol. Survey Missouri, 



V, 1895, p. 77. 



