322 Point Levi Fossils. 



ohlonc/us, an ocular ridge obscurely visible in one specimen. 

 Neck furrow well defined all across. 



Length of glabella four lines ; width three lines and a half. 



Limestone, No. 2. 



Cheirurus Apollo. N. s. 

 Fig. 28. 



Description. — Head convex, semicircular, width about twice 

 the length or a little more. Glabella depressed, convex, some- 

 what circular or very broadly conical, the posterior margin con- 

 vex, the sides and front rounded, the width at the posterior third 

 equal to the length, the neck furrow in the cast defined all across 

 three glabellar furrows directed obliquely forwards and outwards 

 at an angle of about 30°, with the longitudinal axis, their inner 

 extremities turned backwards, and distant from each other about 

 one-fourth the whole width. The four side lobes of the glabella 



Fig. 28. Fig. 29. Fig. 30. 



Fig. 28. — Cj^eirurus Apollo. 



Fig. 29 Pygidium. Limestone No. 2. This may be the tail of 



aii Amphion. 



Fig. 30. — Cheirurus Eryx. 



are sub-equal, the posterior pair a little larger than the others. 

 Eyes small, opposite the second lobe from behind, distant from it 

 about the width of the lobe or a little less. Cheeks in the cast 

 punctured. I have not ascertained whether or not the posterior 

 angles terminate in spines. Length of head, five lines ; length 

 and width of glabella, a little less than five lines. 



There are many European species of this type, and they range 

 from the Landeilo Flags upwards to the Devonian. 



Limestone, No. 2. 



Cheieurus Eryx. N. s. 

 Fig. 30. 

 Description. — Head semicircular, depressed convex, width 

 twice the length or a little more, the posterior angles produced 

 into short spines. Glabella elongate conical, moderately convex, 



