686 



L. HUSSAKOF 



4 4 



Is 



Fig. i. — Cristiwmer namaycush. Jaw elements belonging to a single fish, X|. 

 Pleistocene; Menomonie, Dunn County, Wisconsin. 



a, right maxilla; b, vomer, in oral view; c, left premaxilla; d, teeth from man- 

 dible and vomer; e, left mandible, outer view; /, right mandible, inner view. 



