1911] Tiller. Fossils from the Palaeozoic Formations. 255. 



Arionellus (Agraulos) convexus Whitfield = Agraulos convexus. 



Arionellus N, s. Hall. Potsdam. 



Geol. of Wis., Hall, 1862, Vol. 1, p. 432. 



Locality — ? 

 Types—? 



Asaphus barrandii Hall = Ogygia barrandii. 



Asaphus homalonotoides Walcott. Trenton (Ord.) 



Asaphus homalonotoides, Thirty-first Ann. Rept. X. Y. State Cab. 



of Nat. Hist,, Walcott, 1879, p. 71. 

 Asaphus triangulatus, Ann. Rept. Wis. Geol. Snrv., Whitfield, 1879, 



p. 59. 



Asaphus homalonotoides, Geol. of Wis., Whitfield, 18S2, Vol. 2,. 

 p. 237, pi. 5, fig. 4. 



Locality — Sec. 5. T5. R5. West, Grant Co., Wis. 

 Type — Univ. of Wisconsin. 



Asaphus triangulatus Whitfield = Asaphus homalonotoides. 



Asaphus wisconsensis Walcott, Trenton (Ord.) 



Twenty-eighth Ann. Kept. N. Y. State Mus. of Nat, Hist.. Walcott,. 

 1879, p. 97. 



Locality — Mineral Point and Platteville, Wis. 

 Types — Mus. of Com. Zoology, Cambridge, Mass. 



Bronteus acamas Hall. Niagara (Sil.) 



Eighteenth Ann. Kept, N. Y> State Cab. of Nat. Hist,. Hall, 18G4,. 

 p. 332, pi. 21, figs. 19, 20. 



Locality — Eacinc, Wis. 

 Types— Am. Mus. of Nat. Hist. 



Bronteus laphami Whitfield. Niagara (Sil.) 



Ann. Eept. Geol. Snrv. Wis., Whitfield, 1877, p. S3. 



Geol. of W T is., W'hitfield, 1SS2, Vol. 4, p. 310, pi. 22, figs. 1-4. 



Locality — Kewaunee, Wis. 

 Types — Univ. of Wisconsin. 



