1911 ] Teller, Fossils from the Palaeozoic Formations. 247 



Oncoceras mumiaforme Whitfield. Trenton (Ord.) 



Ann. Eept. Wis. Geol. Surv., Whitfield, 1879, p. 58. 

 Geol. of Wis., Whitfield, 1882, Vol. 4, p. 232, pi. 7, figs. 3-5. 

 Locality — Beloit, Wis. 

 Types — Univ. of California. 



Oncoceras orcas Hall. Niagara (Sil.) 



Cyrtoceras orcas, Geol. Surv. Wis., Eept. of Prog.. Hall, 1861, 



p. 42. 

 Oncoceras orcas, Eighteenth Ann. Kept. N. Y. State Cab. of Nat. 



Hist., Hall, 1864, p. 350, pl./17 (8.), figs. 1, 2. 

 Locality — Waukesha, Wis. 

 Types — Am. Mus. of Nat. Hist. 



Oncoceras pandion Hall. Trenton (Ord.) 



Geoh Surv. Wis., Kept, of Prog., Hall, 1861, p. 45. 



Geol. of Wis., W T hitfield, 1882, Vol. 4, p. 233, pi. 7. fig. 6. 



Mem. Am. Mus. of Nat. Hist., Whitfield, 1895, Vol. 1, Pt. 2, p. 69, 



pi. 9, figs. 20-22. 

 Locality — Beloit and Mineral Point, Wis. 

 Types — Am. Mus. of Nat. Hist. 



Oncoceras plebeium Hall. Trenton (Ord.) 



Geol. Surv. Wis., Kept, of Prog., Hall, 1861, p. 44. 



Mem. Am. Mus. of Nat. Hist., Whitfield, 1895, Vol. 1. Pt. 2, p. 68, 



pi. 9, figs. 15-19. 

 Locality — Beloit, Wis. 

 Types — Am. Mus. of Nat. Hist. 



Orthoceras sp. Cleland. Hamilton (Dev.) 



Wis. Geol. and Nat. Hist. Surv., Cleland, 1911, Bull. 21, p. 135, 



pi. 42, figs. 3, 3A. 

 Locality — Milwaukee, Wis. 

 Types — Williams College. 



Orthoceras abnorme Hall = Actinoceras aonorme. 



Orthoceras alienum Hall. Niagara (Sil.) 



Twentieth Ann. Kept. N. Y. State Cab. of Nat. Hist., Hall, 1867, 

 p. 354, pi. 20A, fig. 5. 



Obs.' There is no such plate or figure in the work cited. 

 Twentieth Ann. Kept. N. Y. State Cab. of Nat. Hist., Revised 



Edition, Hall, 1868, p. 414, pi. 24, figs. 6, 7. 

 Locality — Kacine, Wis. 

 Types — Am. Mus. of Nat. Hist. 



