12 SMITHSONIAN MISCELLANEOUS COLLECTIONS VOL. IO3 



to the anterior third. The brim is not well preserved, but apparently 

 narrow, with a slightly upturned edge. Fixigenes, confined to the 

 palpebral lobes, at their widest point are less than half the width of 

 the glabella. Anterior fixigenes wanting. The eye, with a nearly cir- 

 cular curvature, extends forward to the dorsal furrow. The palpebral 

 lobes are flat for most of their width, but at the outer margins turn 

 down very sharply so that their anterior portions actually bulge over 

 the eye band. Dorsal furrow wide and deep on exfoliated cranidia, 

 while the first pair of glabellar furrows are wide but shallow. Test 

 smooth. Where partially exfoliated, the remaining thin portion of the 

 test is finely punctate. 



Lyell formation; (loc. 20J) Tilted Mountain Brook, 9^ miles east 

 of Lake Louise, Alberta. 



Holotype.— U.S.N. M. No. 108642. 



CHARIOCEPHALUS BADGERENSIS, new species 

 Plate 2, Figures 18-20 



This species, represented by only a few cranidia, is about normal 

 in size, and in general appearance approaches close to the genotype. 



The glabella is quadrangular, with rounded anterior corners. Two 

 pairs of glabellar furrows are faintly indicated, besides the excep- 

 tionally wide occipital furrow. Brim relatively wide with an upturned 

 margin. Dorsal furrow wide and deep. Fixigenes at their widest 

 point less than one-third the width of the glabella. Very narrow 

 anterior fixigenes remain. Since the eye does not reach to the occipital 

 furrow, fixigenes remain posterior to the eye and are about equal to 

 one-fourth the glabellar width at that point. The eye extends from 

 a point opposite the forward ends of the occipital furrow on the 

 glabella to the dorsal furrow, and is rather sharply bowed. In longi- 

 tudinal section the cranidium is moderately convex with the greater 

 portion of the convexity concentrated in the anterior lobe. Laterally 

 the glabella is rather evenly convex and the palpebral lobes moderately 

 convex. Exfoliated surface punctate. 



Lyell formation; (loc. iQu) Badger Pass, Johnson Canyon, 8 miles 

 east of Lake Louise, Alberta. 



Holotype. — U.S.N.M. No. 108643. 



CHARIOCEPHALUS BURLINGI, new species 

 Plate 2, Figure 21 



This is the largest species of Chariocephalus found thus far. 

 Although the material is hardly adequate as the basis of a species, yet 

 its description is included because the fauna is very important for 



