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



Parastrophia greenii Hall and Clarke. Niagara (Sil.) 



Pal. of N. Y., Hall and Clarke, 1894, Vol. 8, Pt. 2, p. 367, pi. 63, 



figs. 17, 20, 22. 

 Locality — Racine, Wis. 

 Types — Univ. of Chicago. 



Parastrophia latiplicata Hall and Clarke. Niagara (Sil.) 



Pal. of N. Y., Hall 'and Clarke, 1894, Vol. 8, Pt. 2, p. 368, pi. 63, 



figs. 23-27. 

 Locality — Racine, Wis. 

 Types — Univ. of Chicago. 



Parastrophia multiplicata Hall and Clarke. Niagara (Sil.) 



Pal. of N. Y.. Hall and Clarke, 1894, Vol. 8, Pt. 2, p. 367, pi. 63, 



figs. 15, 16, 21. 

 Locality — Racine, Wis. 

 Types — Univ. of Chicago. 



Pentamerella multicostata Cleland. Hamilton (Dev.) 



Wis. Geol. and Nat. Hist. Surv., Cleland, 1911, Bull. 21, p. 94, pi. 18. 



fig. 18. 

 Locality — Milwaukee, Wis. 

 Type— Collection of Edgar E. Teller. 



Pentamerus arcuosus McChesney = Clorinda arcuosa. 



Pentamerus chicagoensis Winchell and Marcy = Clorinda ventricosa. 



Pentamerus multicostatus Hall = Conchidiitm multicostatum. 



Pentamerus ventricosus Hall = Clorinda ventricosa. 



Pentamerus (Pentamerella,) ventricosus Hall = Clorinda ventricosa. 



Plassiomys deflectus Hall and Clarke = Dinorthis deflecta. 



Plsesiomys loricula Hall and Clarke = Dinorthis deflecta. 



Plaesiomys recta Hall and Clarke = Dinorthis deflecta. 



Producta incurvata Shepard = Strophomena incurvata. 



