230 



PLEUROTOMARIA AGARISTA. (N. sp.) 



(Perhaps a variety of P. Numeria.) 



Description. Spire depressed conical ; whorls about four, flat or 

 gently convex on the upper side, a narrow elevated band on the outer 

 edge of the last one, just within which is a shallow groove ; above, gently 

 convex to the suture. On the underside the whorls are strongly convex ; 

 in the umbilicus, flat and vertical (except the last, which is gently 

 convex) ; the outside, in the last whorl, just below the margin, nearly 

 vertical, but sloping a little inwards. Aperture rhomboidal ; upper side 

 angular at the suture, outside of which, sloping downwards to the margin, 

 at an angle of about 30 to the horizontal axis ; below the edge nearly 

 vertical, but sloping inward ; lower and inner lips rounded. Umbilicus 

 one-third the whole width, exhibiting all the whorls within, in a winding 

 staircase arrangement. 



Width 14 lines ; height 9 lines. 



This species agrees with P. Numeria in every respect, except that 

 it has a more elevated spire, and the whorls more convex on the upper 

 side. 



Locality and Formation. H, Table Head, Newfoundland ; Quebec 

 group. 



Collector. J. Richardson. 



PLEUROTOMARIA ? CALPHURNIA. (N. sp.) 



a b 



Fig. 214. 



Fig. 214. Pleurotomaria Calphurnia. a, front view; 6, view of the base. This is a 

 more than commonly elevated specimen. 



Description. Shell turbinate, with three or four spirally grooved 

 rounded whorls. Spire varying from depressed to elevated conical ; 

 apical angle from 80 to 100. Aperture somewhat circular, slightly 



