22S 



section shows that the outer margin is thin and sharp, and that the 

 aperture is most probatlf not rhomboidal but transversely elliptical, the 

 outer angle acute and the inner probably narrowly rounded. The form 

 is thus like that oiP.lapicida (Salter), differing therefrom in being 

 larger and in having a Avider umbilicus ; the whorls aho are not so flat 

 above, and not s 3 c Dnvex beloAv. 



Locality and Formation. — G, Cape Norn: a q, Newfoundland ; Quebec 

 group. 



Collector. — J. Richardson. 



Pleurotomaria Hyale. (N. sp.) 



Descriptio7i. — Shell rather small, lenticular ; spire depressed conver, 

 the whorls shghtly elevated above each other at the suture, fat or with a 

 barely perceptible convexity on the upper side ; base a little more strongly 

 convex than the spire. Umbilicus either very narrow or completely closed. 

 Surface unknown. 



Width about 9 lines ; hci'^ht 4 to 6 lines. 



The character of the margin has not been clearly ascertained, but it 

 appears to be acute, ard probably has a very narrow band on the edge. 

 The shape may be described as ventricose-lenticular, both spire and base 

 moderately convex, and the peiipheral edge being at about the mid-height, 

 or a httle above. It resembles F. Fror/ne, Creol. Can., p. 181, f. 176, 

 but is a smaller species, and has.t'ie ■\\h3rls slightly elevated above each 

 other at the suture s. 



Locality and Formation.— ^, Keijcl Island and Port aux Choix, 

 Newfoundland; Queb'^ c group. 



Collector. — J. Richardson. 



Pleurotomaria Normani. (N. sp.) 



Fig. 212. 

 Fig. 212. — rieurolomaria Normani. 



description. — The specimen on which this species is founded is an 

 imperfect cast of the iatcrior. Width at the bafee twenty-four lines; 



