32 SMITHSOMAX MISCELLANEOUS COLLECTIONS VOL. IO3 



pair containing pits on each side of the medial hne. Laterally the 

 glabella is only moderately convex, but longitudinally it is considerably 

 more curved. The brim is of normal width, consisting mainly of a 

 wide rim, in horizontal position, with a lingual extension in the middle. 

 The fixigenes at their widest point are a little less than one-third the 

 glabellar width, and their anterior portions, being sharply depressed, 

 are narrower than the brim. The large eyes are sharply bowed. 



Honey Creek limestone; (loc. Qib) 4 miles southeast of Hennepin, 

 West Timbered Hills, Arbuckle Mountains, Oklahoma. 



Holofype.— U.S.N. M. No. 108678. 



DRUMASPIS OSELLA, new species 



Plate 5, Figures 17-20 



Among the numerous specimens of the genus in the Texas collec- 

 tions, two cranidia present very distinct characteristics and are thus 

 separated from D. texana. The glabella tapers forward more than 

 the average amount for the genus and is rounded at the anterior 

 angles to a straight front margin. Four pairs of glabellar furrows 

 are defined. In cross section the entire cranidium is convex, the 

 glabella standing above the dorsal furrow with a rather flat curvature. 

 Longitudinally the head is rather convex, the greatest amount being 

 in the anterior third. Brim rather wide, consisting of a thickened 

 rim and a slightly narrower preglabellar area. The fixigenes at their 

 widest point are less than one-third the width of the glabella. Their 

 anterior portion is slightly wider than the preglabellar area. The eyes 

 are evidently sharply bowed and not very large. Both the anterior 

 angles and the posterolateral limbs are depressed rather sharply. The 

 surface, except in the furrows, is ornamented with anastomosing lines, 

 which, in places, practically form granules. 



Wilberns formation ; (loc. 70) Baldy Mountain, 8 miles northwest 

 of Burnet, Texas. 



Holotypc. — U.S.N.M. No. 108679a; paratypes Nos. 108679b, c. 



DRUMASPIS TEXANA, new species 

 Plate 5, Figures 27-30 



This species is represented by numerous specimens from several 

 localities. The rather wide glabella contracts slightly forward and is 

 well rounded at the anterior angles. The rear pair of glabellar furrows 

 is deeply impressed, the next pair faint, and the forward pair very 

 faint. In cross section the glabella is elevated as usual, longitudinally 

 it is curved throughout. The brim consists of a narrow preglabellar 



