236 CALIFORNIA ACADEMY OF SCIENCES. 



Pakeontology of the Black Hills of Dakota. 



lu U. S. Geog. aud Geol. Survej' Rocky Mouiitaiu Region. Rep. Geol. 

 aud Resources of the Black Hills of Dakota, with atlas; bj- Heury New- 

 ton and Walter Jenney, Washington, 1880, i3. 325, pi. 2. 



VrppkcjthnhiH planus u. sp., C centralis n. sp. 



Palaeontology. 



In Geol. Wisconsin, vol. 4, 1882, pt. 3, pp. 163-363, pis. 1-27. 



Potsdam Sandstone: (Dicellocejihalus zone.) Conocephalites calymen- 

 oidi'S Whitf. Dicellocejihalus lodensis Whitf., D. crassimaryinatus u. sp. 

 Conocephalites quadratus n. sp., C. (Pit/chaspis? ) explanaius n. sp. Crej)- 

 icephaliis onustus Whitf., C? fjiblm n. sp. Ptychaspns granulosa Owen, 

 P. striata u. sp., P. minuta Whitf. Dicellocephalus minnesotensis Owen, 

 Ayraulos {Bathyurus? ) tvoosteri Whitf. ArioneUus convextis Whitf. 

 ElUpsocephalus citrti/s Whitf. Aglaspis eatoni n. sp. 



Species from the Lower Magnesian Limestone: Dicellocephalus barcdni- 

 ensis Whitf., D. eatoni Whitf. Jlktnurus convexus Whitf. 



Species from the Trenton Limestone: Asaphus snsce Calvin MS., A. 

 homalonotoidrs Wal. Ilhenus ovatus Conrad. 



Species from the Niagara Group, 111.: Ilktnus ioxus Hall, /. insiijnis 

 Hall, /. imperator Hall, /. jnadisonianus u. sp., /. pterocephalus Whitf. 

 Bronteus laphami Whitf. Sphcerexochus romiwjeri Hall. 



Devonic: Leperdilia alia Conrad. Phacops rana Green. 



Description of new species of fossils from 



Ohio, with remarks on some of the geological forma- 

 tions in which they occur. 



In Annals New York Acad. Sci., vol. 2, Nos. 7, 8, 1882, p. 193. 

 Eunjpterus eriensisn. sp. Leperdilia angnlifHra n. st^. Plumulites nev:- 

 herri/i n. sp. 



On the fauna of the Lower Carboniferous 



limestones of Spergen Hill, Indiana, with a revision 

 of the descriptions of its fossils heretofore 2)ublished, 

 and illustrations of the species from the original type 

 species. 



In Bull. Am. Mus. Nat. Hist. New York, vol. 1, No. 3, 1882, pi. 9. 



Leperdilia carhonaria Hall. Cytherina r/landella n. sj). 



Plates republished in 12th Rep. Geol. Nat. Hist. Indiana, 1882. 



List of Wisconsin fossils. 



In Geol. Wisconsin, vol. 1, 1883, p. 362; also ilhistratious of typical 

 fossils of the Wisconsin formations. 



Fig. 15 is an entire specimen of Dicellocephalus minnesotensis Owen. 



