456 SMITHSONIAN MISCELLANEOUS COLLECTIONS VOL. 64 



DESCRIPTION OF PLATE 67 



PAGE 



Pagctia bootcs Walcott 408 



Fig. I. (X8.) Specimen showing palpebral ridge, eye lobe and facial 

 suture on right side, 'occipital spine and caudal spine which 

 is partially turned over so as to indicate that it is slightly 

 angular on the upper side. U. S. National Museum, Cata- 

 logue No. 62855. 



la. (X8.) Specimen with palpebral ridge, traces of two pairs of 

 short glabellar furrows, right eye and facial suture. U. S. 

 National Museum, Catalogue No. 62856. 



lb. (X8.) Dorsal shield with free cheeks displaced. U. S. 

 National Museum, Catalogue No. 62857. 



If. (X8.) A broken cephalon with glabella and a large occipital 

 spine that is as long, if not longer than the glabella. U. S. 

 National Museum, Catalogue No. 62858. 



id. (X8.) Dorsal shield with the right free cheek and eye 

 detached from the fixed cheek. U. S. National Museum, 

 Catalogue No. 62859. 



le. (X8.) A fine dorsal shield with the palpebral ridges, facial 

 suture on right side, and base of caudal spine. U. S. 

 National Museum, Catalogue No. 62860. 



le'. (X8.) Side outline view based on the specimens represented 

 by figs. I and ic. 



if. (X8.) Matrix of a dorsal shield from which the free cheeks 

 have been displaced. This specimen is on the same piece 

 of shale as that represented by fig. ic. U. S. National Mu- 

 seum, Catalogue No. 62861. 



The specimens represented by figs, i, la-f are from locality 35k, 

 Middle Cambrian : Burgess shaje ; Burgess Pass, British Columbia. 

 Canada. 



Pagetia clytia Walcott 408 



Fig. 2. (X 10.) Two specimens of the dorsal shield with the lower 

 one preserving the free cheeks and elevated palpebral lobes. 

 U. S. National Museum, Catalogue No. 62862. 



2a. (X 10.) Cephalon with palpebral lobes and free cheeks dis- 

 placed or crushed down in the soft shale. U. S. National 

 Museum, Catalogue No. 62863. 



2b. (X 10.) Dorsal view and side outline of a cephalon with base 

 of occipital spine, slight traces of glabellar furrows, left 

 side palpebral lobe and faint trace of palpebral ridge ; free 

 cheeks displaced. U. S. National Museum, Catalogue No. 

 62864. 



2c. (X II-) Wash drawing based on photograph of a cephalon 

 with free cheeks displaced. U. S. National Museum, Cata- 

 logue No. 62865. 



2d. (X II-) Wash drawing based on photograph of a pygidium. 

 U. S. National Museum, Catalogue No. 62866. 



2e. (X II-) Wash drawing based on a photograph of a dorsal 

 shield. The eyes and facial sutures are too diagrammatic. 

 This drawing was made in 1907 before the discovery of 

 Pagetia bootes in 1909. U. S. National Museum, Catalogue 

 No. 62867. 

 The specimens represented by figs. 2, 2a-e are from locality 55c, 



Middle Cambrian : Spence shale ; 15 miles (24.2 km.) west of Mont- 



pelier, Idaho. 



