129 Bri.LKTix 13 17 



BATHVl/RUS (?) Billings 

 Bathyurus sp. ? , PL 16 fig. 9 



Glabella oblong, very convex; ej'es niidwa}' between the 

 front and back. Surface smooth. Size of glabella 12 mm. in 

 length and 7 mm. in width. Several glabella were found, bift 

 none in a condition perfedl enough to warrant a positive identi- 

 fication. 



Locality. — No. IV 2, of the Ft. Hunter secftion. 



Bathyurus ellipticus, n. s. PI. 16, figs. 5, 6 



Glabella very convex, elliptical, length slightly exceeding 

 the width, destitute of lateral furrows. Neck furrow well de- 

 fined. Margin of the glabella with a thick, narrow border which 

 turns up in front, presenting a truncated appearance. In the im- 

 perfe(5l specimens at hand a triangular portion of the fixed cheek 

 curves down behind the eye. 



Eyes situated midway between the front and back. 



Surface covered with strong, numerous tubercles. Width of 

 cephalon about 10 mm., length 7 mm. 



This species differs from B. conicus Billings, in that the 

 glabella is elliptical and in the turning up and seeming truncation 

 of the anterior margin of the cephalon. A comparison of one of 

 the type specimens of Menocephaliis giobosiis Billings, kindly 

 loaned by Prof. J . F. Whiteaves, showed a strong resemblance to 

 our species. The cephalon of M. glohosus is more globose, the 

 tubercles are smaller and less numerous and the sutures extend 

 diredlly back from the eyes to the posterior of the cephalon. In 

 B. ellipticus the fixed cheeks extend in a narrow wedge to the side 

 of the cephalon. 



Locality. — Very rare in bed VI 2, near Ft. Hunter. 



Brachiopoda 



D ALMA NELL A Hall and Clark 



Dalmanella (orthisi wemplei, n. s. PI. 17 figs- i^>- ". 12 ,i;i 



Shell small, sub-circular, bi-convex; hinge line from four- 

 fifths to equal the greatest width of the shell; cardinal angles 



