Fossils of the Calciferous Sandrock. 



351 



HOLOPEA OVALIS. (N. S.) 



FiG. 2. 

 Fig. 2. — Holopea ovalis. 



Description. — Oval, moderately ventricose, four whorls, the body 

 whorl at the aperture occupying two thirds the whole length, the 

 whorls depressed convex, the suture deep,giving the cast a turreted 

 appearance, apical angle about 75°. Length one inch and a half, 

 width fourteen lines. 



Locality and formation. — Second Concession of Grodmanches- 

 ter, Calciferous Sandrock. 



Collector. — J. Richardson. 



Fig. 3. Fig. 4. 



Fig. 3. — Pleurotomaria Ramsayi. 

 4. — P. Ramsayi. View of base. 



Pleurotomaria Ramsayi, Billings. 



Figs. 3, 4. 



Description. — Shell trochoid, acutely conical, spire much elevat- 

 ed, whorls five or six perfectly flat, apical angle about 60°. Outer 

 margin of body whorl with a sharply rounded edge; aperture 

 sub-rhomoidal, umbilicus small ; surface with fine striae curving 

 backwards from the upper to the lower edge of the volutions 



