446 SMITHSONIAN MISCELLANEOUS COLLECTIONS VOL. 64 



DESCRIPTION OF PLATE 62 



PACE 



Asaphiscus (Blainia) gregarius Walcott 394 



Fig. I. (X2.) Dorsal views of a small, imperfect dorsal shield that 

 has a convex cranidium. U. S. National Museum, Catalogue 

 No. 62791. 



irt, la'. (Natural size.) Dorsal and side views of a dorsal shield 

 with a well-preserved pygidium. The free cheeks are re- 

 stored from another specimen. U. S. National Museum, 

 Catalogue No. 62792. 



lb. (Natural size.) Dorsal view of a somewhat broken up dorsal 

 shield. U. S. National Museum, Catalogue No. 62793. 



lb'. (Natural size.) Side view of a broken dorsal shield, showing 

 the profile of the cranidium. U. S. National Museum, Cata- 

 logue No. 62794. 



If, ic'. (X4-) Associated hypostoma and side outline. U. S. Na- 

 tional Museum, Catalogue No. 62795. 



id, id'. (Natural size.) Dorsal and side views of a finely preserved 

 pygidium. U. S. National Museum, Catalogue No. 62796. 



If- (X3-) A small dorsal shield partially concealed in the 

 matrix ; the covered parts are restored in outline. U. S. 

 - National Museum, Catalogue No. 62797. 



if. (X2.) Interior of a smaller pygidium with a broad, striated 

 doublure. U. S. National Museum, Catalogue No. 62798. 



IS. ig'. (Natural size.) Dorsal and side views of a finely preserved 

 pygidium. U. S. National Museum, Catalogue No. 62799. 



ih. (X2.) An enrolled dorsal shield. U. S. National Museum, 

 Catalogue No. 62800. 



if. (Natural size.) A group of sm^ll dorsal shields adhering to 

 the surface of a siliceous concretion. U. S. National Mu- 

 seum, Catalogue No. 62801. 



Asaphiscus (Blainia) paula Walcott 395 



Fins. 2,2a. (Natural size.) Dorsal and side views of an almost entire 

 dorsal shield. U. S. National Museum, Catalogue No. 

 62802. 

 2b, 2b'. (Natural size.) Dorsal and side views of a fine cranidium. 

 U. S. National Museum, Catalogue No. 62803. 

 The specimens represented by figs, i, la-i, 2, 2a-b are attached to 

 the outer surface of siliceous nodules that are embedded in a dark 

 argillaceous shale of the lower Conasauga formation : Middle Cam- 

 brian ; (90X) 3 miles east of Center, near Blaine, Cherokee County, 

 Alabama. 



