31S 



Point Levi Fossils, 



Bathyurus capax. N. s. 



Fig. 20. 



Description. — Head, convex, forming a depressed quarter of a 

 sphere. Glabella oblong, separated from the flat, sloping rim of 

 the front margin by a narrow angular groove ; sides gently con- 

 cave, nearly straight, with a short obscure outward curve oppo- 

 site the eye, slightly converging towards each other from behind, 

 forwards. The neck furrow is represented by an obscure trans- 

 verse impression, which occupies the middle third of the width 

 of the glabella, but does not reach all across. The anterior and 

 posterior angles are rounded, and although distinctly defined all 

 round, by the dorsal furrows, (which, however, are only slightly 

 impressed), the glabella in the anterior half, is scarcely at al! 

 elevated above the general convexity of the head ; it is moder- 

 ately prominent behind. The eye is situated at mid-length of 

 the head, semi-annular, its centre distant from the side of the 

 glabella, two lines, when the length of the head is thirteen lines. 



Fig. 21. 



Fig. 20. Fig. 22. 



Fig. 20. — BcLthyurus capax. The lower figure is a longitudinal sec- 

 tion, shewing the convexity of the glabella and the flat sloping rim of 

 the front margin at a. 



Fig. 21. — Bathyurus dubius. 



Fig. 22. — Bathyurus bituberculatus. 



The anterior margin of the head to front of the glabella is 

 strengthened by a fiat rim, which slopes downwards and for- 

 wards at an angle of about 60°, with the horizontal plane of the 

 body. This character is constant in heads specimens of all sizes, 

 from a leno-th of six lines to thirteen. The width of this rim in 



