398 SMITHSONIAN MISCELLANEOUS COLLECTIONS VOL. 64 



doubtfully referred to the species has about the same length. The 

 cranidium of Blountia amage is in the outline of its glabella and 

 palpebral lobes nearer to B. alctlies than any other species of the 

 genus. 



Formation and locality. — Upper Cambrian: (123b) Maryville 

 limestone; Rogersville, 0.5 mile (0.8 km.) east of depot on left of 

 railway in wagon road, Hawkins County, Tennessee. 



BLOUNTIA ALEXAS, new species 



Plate 61, figs. 5, 5a 



This form is most nearly related to Blountia anser; it differs m 

 the wider frontal border of the cranidium, shorter glabella, and 

 smaller palpebral lobe. The glabella appears to be smooth. 



Formation and locality. — Upper Cambrian : (125) Maryville lime- 

 stone ; north side of big creek below Harlan's mill, 4 miles (6.4 km.) 

 northeast of Rogersville, Hawkins County, Tennessee. 



BLOUNTIA AMAGE, new species 

 Plate 64, figs. 3, 3a 



This form is characterized by its slightly conical, smooth glabella, 

 gently rounded frontal limb and margin, and distinctly dorsal fur- 

 rows. A cranidium has a length of 5 mm. An associated pygidium 

 illustrated by figure ^a has a length of 6 mm. 



The cranidium of B. amage is much like those of B. alethcs and 

 B. andreas (pi. 64, figs, i, 2) except that they all differ in the details 

 of the frontal limb and border from it and from each other. 



The associated pygidium (fig. 3a) is somewhat similar to that 

 associated with the cranidium of B. aleth'es (fig. ih). 



The cranidium has a length of 5.5 mm. 



Formation and locality. — Upper Cambrian: (107) Conasauga 

 formation (Maryville limestone) ; Bull Run Ridge, northwest of 

 Copper Ridge, 11 miles (17.7 km.) northwest of Knoxville, Knox 

 County, Tennessee. 



BLOUNTIA ANDREAS, new species 

 Plate 64, fig. 2 



This species is represented by a single specimen of the cranidium 

 which is characterized by its broad frontal border and relatively short 

 broad glabella which has a well-defined occipital furrow. 



