:SCHUCHEBT.] INDEX AND BIBLIOGRAPHY. 393 



Spirifer huroniensis Oasteluau=:Spirifer granulosus. 



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



Spirifer huronensis A.. Wincbell, Proc. Acad. Nat. Sci. Philadelphia, 1862, p. 406. 

 Loc. Port aus Barques, Michigan. 



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



Spirifer imbrex Hall, Geol. Survey Iowa, I, Pt. II, 1858, p. 601, pi. 13, fig. 2.— 



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

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



11, 12. 

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



Spirifer ineequivalvis Castelnau=Rliynchotrema inpequivalvis. 



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, fig. 



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



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

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



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

 Loc. Kaskaskia and Chester, Illinois; Kentucky. 

 01)8. Not synonymous with S. bisulcatus Sowerby, as stated by Meek and Saff'ord. 



It has also been 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. 

 Ohs. 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 inequicostatus Owen = Spirifer cameratus. 

 Spirifer insolitus Wincliell=Martinia ? 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, Cout. Canadian Pal., I, 1891, p. 223. 

 Loc. Independence, Iowa; Athabasca River, Canada. 



Spirifer iowaensis Owen. Middle Devonian. 



Spirifer iowensis Owen, Geol. Survey Iowa, "Winconsiu, and Minnesota, 1852, p. 



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

 Spirifer penuatus 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. 



