200 Bulletin Wisconsin National History Society. [Vol. 9, No. 4. 



Siphonocrinus nobilis (Hall.) Niagara (Sil.) 



Glyptocrinus nobilis, Geol. Suit. Wis., Kept, of Prog., Hall, 1861, 



p. 21. 

 Glyptocrinus nobilis, Eighteenth Ann. Kept., N. Y. State Cab. of 



Nat. Hist., Hall, 1864, p. 32S, pi. 10, figs. 9, 10. 

 Glyptocrinus nobilis, Geol. of Wis., Whitfield, 1882, Vol. 4, p. 283, 



pi. 16, figs. 9. 10. 

 Siphonocrinus nobilis, Am. Geologist, S. A. Miller, 1889, Vol. 1, 



Pt. 5, p. 263, figs. 265. 

 Locality — Racine, Wis. 

 Type— Am. Mus. of Nat. Hist. 



Siphonocrinus pentagonus Waehsmuth and Springer. Niagara (Sil.) 

 The North American Crinoidea Camarata, Waehsmuth and 



Springer, 1897 Vol. 1. p. 213. pi. 19, figs. 4a, b. 

 Locality — Racine, Wis. 

 Type— Collection of Waehsmuth and Springer, U. S. National 



Museum, Washington, D. C. 



Thysanocrinus occidentalis (Hall.) Niagara (Sil.) 



Glyptaster occidentalis. Trans. Albany Ins., Hall, 1862, Vol. 4, 



p. 204. 

 Glyptaster occidentalis. Eighteenth Ann. Eept. N. Y. State Cab. of 



Nat. Hist., Hall, 1S64, p. 326, pi. 10, fig. 3. 

 Thysanocrinus occidentalis, The Chicago Acad, of Science, Weller, 



1900, Bull. 4, Pt. 1. p. 73, pi. 1, figs. 6, 7. 

 Locality — Racine, Wis. 

 Types — Am. Mus. of Nat. Hist. 



Thysanocrinus pentangularis (Hall.) Niagara (Sil.) 



Glyptaster pentangularis, Eighteenth Ann. Rept. N. Y. State Cab. 



of Nat. Hist,, Hall. 1864, p. 326. pi. 10, fig. 4. 

 Melocrinus verneuili. Twentieth Ann. Rept. N. Y. State Cab. of 



Nat. Hist., Hall. 1867. p. 327, pi. 10. fig. 5. 

 Thysanocrinus pentangularis. The Chicago Acad, of Sci., Weller, 



1900, Bull. 4, Pt. 1. p. 70, pi. 1, figs. 8-11. 

 Locality — Racine, Wis. 

 Type— Am. Mus. of Nat. Hist. 



