1911] Teller, Fossils from the Palceozoic Formations. 245 



Gyroceras duplicostatum Whitfield. Trenton (Ord.) 



Ann. Kept. Geol. Surv. Wis., Whitfield, L877, p. 78. 



Geo!, of Wis., Whitfield, 1882, Vol. 4, p. 235, pi. 7, fig. 1. 



Locality — Bristol, Dane Co., Wis. 

 Type — Univ. of California. 



(iyroceras eryx Hall. Hamilton (Dev. 



Regents Report on the State Cabinet of New York, Hall, 1861, 



p. 39. 

 Pal. of New York, Hall, 1S79, Vol. 5, Pt. 2, p. 386, pi. 58, fig. 1, 



pi. 103, fig. 3. 

 Wis. Geol. and Nat. Hist, Surv., Cleland, 1911. Bull. 21, p. 140, 



pi. 33. 



Locality — WTiitefish Bay, near Milwaukee, Wis. 

 Type— Am. Mus. of Nat. Hist. 



Lituites capax Hall = Nautilus capax. 



Lituites multicostatus Whitfield. Niagara (Sil.) 



Ann. Rept. Wis. Geol. Surv.. Whitfield, 1879, p. 67. 



Geol. of Wis., Whitfield, 1S82, Vol. 4, p. 303, pi. 20. fig. 7. 



Locality — Waukesha, Wis. 

 Type — Univ. of Wisconsin. 



Lituites robertsoni Hall. Trenton (Ord.) 



Geol. Surv. W T is., Rept. of Prog., Hall, 1861, p. 38. 

 Mem. Am. Mus. of Nat. Hist., Whitfield. 1895, Vol. 1, Pt. 2, p. 64, 

 pi. 10, figs. 4-6. 



Locality — Beloit, Wis. 



Types — Am. Mus. of Nat. Hist. 



Lituites undatus var. occidantalis Hall. Trenton (Ord.) 



Geol. Surv. Wis., Rept, of Prog., Hall, 1861, p. 38. (referred to 



the Niagara group in error. 

 Mem. Am. Mus. of Nat, Hist,, WTiitfield, 1895, Vol. 1, Pt. 2, p. 63, 



pi. 10, fig. 7, pi. 11, and pi. 12, fig. 3. 



Locality — Beloit, Wis. 



Types — Am. Mus. of Nat. Hist. 



