•^2 SMITHSONIAN M ISCEI.I.A NEOl'S COLLECTIONS VOL. IO3 



glabellar leniLjth. It is concave without (liflcrciitiatinn of a rim cither 

 by furrow or change in contour. 



At the eyes the fixigenes are about halt the glabellar width, increas- 

 ing posteriorly to expand in rather large posterolateral limbs. In 

 cross section the cranidium is rather convex with an even curvature, 

 while longitudinally the convexity is greater. The pygidium has a 

 conspicuous axis rising above the pleural lobes. Axial and pleura! 

 furrows obliterated. In cross section the profile is rather flat, but 

 longitudinally the axis is convex and the rear portion of the pygidium 

 slopes down steeply. 



Cap Mountain formation ; (loc. I4d) Rartlett Hollow, Burnet 

 County, Texas. 



//o/ofA'/'^.— U.S.N. ]\T No. 108765a; paratype, No. 108765b. 



MARYVILLIA MOOSENSIS, new species 



Plate 14, Figures 15-17 



This species is represented by several examples of cranidia and 

 pygidia from a single boulder found in the Moose River, and there- 

 fore the association of head and tail is certain. This is the first 

 identification of the genus in the lower beds of the Lynx formation 

 in the Robson District. The matrix is a dark crystalline liinestone 

 containing vaugnite pebbles. 



The illustrated cranidium is partially exfoliated, and therefore has 

 a deep dorsal furrow and faint glabellar furrows. The slightly 

 thickened rim is a little wider than the preglabellar area. Fixigenes 

 are narrow, averaging about half the glabellar width at its anterior 

 end. An exfoliated pygidium is illustrated, showing the nodes in the 

 axial furrows, and also shallow pleural ftuTows. The axis tapers ^■erv 

 little and slopes down in the rear rather steeply. 



Lynx formation (Sullivan equivalent) ; (loc. 6ir) drift in Moose 

 River, 10 miles northeast of Robson Pass, British Columbia. 



Holotype. — U.S.N.M. Xo. 1 08771 a ; paratype No. 108771b. 



METEORASPIS Resser, 1935 

 METEORASPIS BANFFENSIS, new species 



Plate 13, Figures 5-10 



Metcoraspis is not yet well understood. Reference of these cranidia 

 and possibly the pygidium to the genus is warranted according to our 

 present knowledge. 



The large tumid glabella occupies about three-fourths of the cranid- 

 ial area. Furrows are only faintly indicated even on the exfoliated 

 cranidium. Occipital furrow and ring are well developed. Brim width 



