252 SMITHSONIAN MISCELLANEOUS COLLECTIONS VOL. 64 



DESCRIPTION OF PLATE 35 



PAGE 



Crepicephalus unca Walcott 217 



Fig. I, (X I-5-) Cranidium and side outline. U. S. National Mu- 

 seum, Catalogue No. 61709. 



la. (Natural size.) The same cranidium as fig. i. 



lb. (X2.) Slightly distorted free cheek with outline restored 

 from an associated specimen. U. S. National Museum, 

 Catalogue No. 61710. 



ic. (X 1.5- ) Fragment of a cranidium to illustrate palpebral lobe 

 and postero-lateral limb. U. S. National Museum, Cata- 

 logue No. 61711. 



id. (X 1-5.) Dorsal and side views of pygidium associated in 

 same layer of sandstone with fig. i. U. S. National 

 Museum, Catalogue No. 61712. 



le. (X 2.) A smaller pygidium, showing doublure and a slightly 

 different outline from that of fig. id. U. S. National 

 Museum, Catalogue No. 61713. 



The specimens represented by figs, i, la-e are from locaHty 79c, 

 Upper Cambrian : Eau Claire formation ; Willow River, near Hud- 

 son, Wisconsin. (Collected by Mr. W. A. Finkelnburg, of Winona, 

 Minnesota.) 



Saratogia vohix Walcott 198 



Figs. 2, 2a. (X3-) Cranidium and side outline. U. S. National 

 Museum, Catalogue No. 61714. 



From locality 78a, Upper Cambrian : Eau Claire formation ; 

 near Eau Qaire, Wisconsin. 



Saratogia hera Walcott 197 



Figs. 3, 30. (X i-S) Dorsal and side views of cranidium. U. S. 

 National Museum, Catalogue No. 61715. 

 2,h. (Natural size.) Spine bearing thoracic segment associated 

 with this species. U. S. National Museum, Catalogue No. 

 61716. 



The specimens represented by figs. 3, 2>(t'-b are from locality 98a, 

 Upper Cambrian : Franconia formation. Marine Mills, Minnesota. 



Saratogia arses Walcott 196 



Figs. 4, 4a. (X3-) Cranidium and side outline of type specimen. 

 U. S. National Museum, Catalogue No. 61717. 

 4&. (Natural size.) The same cranidium as that represented by 

 fig. 4. 

 The specimen represented by figs. 4, ^a-b is from locality 173, 

 Upper Cambrian : Nolichucky shale ; Maryville, Blount County, 

 Tennessee. 



