256 Forty-third Report on the State Museum, 



S. troosti, Castelnau, 1843. ? Devonian. 



S. tullia, Hall, 1867. Hamilton. 



S. undulata, Vanuxem, 1842 (non Sowerby). Syn. for S. raricosta, 

 Conrad. 



S. undifera, Roemer, IS-li. Identified by Walcott in the lower 

 Devonian, Eureka district, Nevada. 



S. unica, Hall, 1867. Sjn. for S. arenosa, Conrad. 



S. iirbana, Calvin, 1888. Hamilton. 



S. utahensis, Meek, 1860. Syn. for S. norwoodi, ]\Ieek. 



S. valenteana, Rathbun, 1874, Middle Devonian of South America. 



S. vanuxemi, Hall, 1859. Lower Helderberg. 



S. varicosa, Hall, 1857. Upper Helderberg. 



S. venuda. Hall, 1860. Syn. for S. divaricata, Hall. 



S. vernonensis. Swallow, 1860. Cboteau. 



S. vernonensis var ozarkensis, Swallow, 1860. Cboteau. 



S. ? ivaldronensis, Miller and Dyer, 1878 = ? Triplesia waldronensis. 



S. waverly ensis, A. Wincbell, 1870. Waverly. 



S. whitneyi, Hall, 1858. Chemung ? [Tschernyschew, 1887, placed 

 it as a synonym under S. archiaci, Murchison.] 



S. winchelli, Herrick, 1888. Waverly. 



S. wortbeni. Hall, 1857. Hamilton. 



S. tvortheni, Meek, 1877. Oriskany. Meek & Worthen described 

 this species first as S. engehnanni, 1868, finding the name pi-eoccupied; 

 Meek in 1877 proposed S. wortheni. This name is also preoccupied 

 (Hall, 1857) ; therefore, I will change it to S. ivorthenana n. sp. 



S. ziczac, Hall, 1843 (non S. zickzack, Roemer, 1843), Syn. for S. 

 consobrina, P'Orbigny. 



Spieiferina, D'Orbigny. 



S. billingsi, Shumard, 185^. Upper Carboniferous. 



S. binacuta, A. Wincbell, 1865. Burlington, 



S. clarksvillensis, A. Wincbell, 1865. Cboteau. 



S. depressa, Herrick, 1888. Waverly. 



S. gonionota. Meek, 1877. Carboniferous. 



S. kentuckiensis, Shumard, 1885. Coal Measures. There is great 

 difference of opinion regarding this species. It has been identified 

 with S. cristata, Schl. ; S. octojilicata, Sowerbj- and ^S'. laminosa, McCoy. 



S. kentuckiensis var. propatula, Swallow, 1866. Upper Carb. 



S. norwoodana, Hall, 1858. St. Louis. 



S. pulchra, Meek, 1860. Carboniferous. 



S. solidirostris. White, 1860, Kinderhook. 



S. spinosa, Norwood and Pratten, 1855. Chester. 



