NO. 5 CAMBRIAN TRILOBITES 445 



PAGE 



Blountia alexas Walcott 398 



Figs. 5, 5a. (X 3-) Dorsal and side views of the type cranidium. U.S. 

 National Museum, Catalogue No. 62785. 



The specimen represented by fig. 5 is from locality 125, Upper 

 Cambrian : Maryville limestone ; 4 miles northeast of Rogersville, 

 Hawkins County, Tennessee. 



Blountia ? alemon Walcott 397 



Figs. 6, 6a. (X S-) Dorsal and side views of the type cranidium. U. S. 

 National Museum, Catalogue No. 62786. 



The specimen represented by fig. 6 is from locality 119, Upper 

 Cambrian: Maryville Hmestone; 1.5 miles southeast of Morristown, 

 Hamblen County, Tennessee. 



Blountia anser Walcott 399 



Figs. 7,7a. (X 5-) Dorsal view and side outline of type cranidium. 

 U. S. National Museum, Catalogue No. 62787. 

 7b. (X5-) Pygidium associated with cranidium represented by 

 fig. 7. U. S. National Museum, Catalogue No. 62788. 



The specimens represented by figs. 7, 7b are from locality 120, 

 Upper Cambrian : Maryville limestone ; 2 to 3 miles south of New 

 Market, Jeflferson County, Tennessee. 



Asaphiscus calanus Walcott 384 



Fig. 8. (Natural size.) Cast of interior of a broken cranidium. U. S. 

 National Museum, Catalogue No. 62789. 

 8c. (Natural size.) Pygidium associated with the cranidium repre- 

 sented by fig. 8. U. S. National Museum, Catalogue No. 

 62790. 



The specimens represented by figs. 8, 8a are from a fine shaly 

 sandstone at locality 47h, Middle Cambrian: Wolf Creek, 6 miles 

 below Rocky Gap, Bland County, Virginia. 



