RocTcs and Fossils of Philliyshurgh, C. E, 321 



measures one inch and a half across the whole coil. The inner or 

 apical whorl is usually about half an inch across. The remainder 

 being not so sharply curved, completes only a second whorl at a 

 diameter of one inch and a half. Most of the specimens that I 

 have seen consist of only one whorl and a half, but we have some 

 imperfect ones of two whorls. In the casts of the interior an ob- 

 tuse carination is sometimes seen on one side. The surface of 

 the shell appears to be smooth, but owing to the peculiar state of 

 preservation of these fossils, this point cannot yet be determined 

 with certainty. 



Fig. 5. 



Fig. 5. — Ecculiomphalus intortus. A specimen imperfect at both ex- 

 tremities. 



Locality and formation. — In the calciferous sandrock in the 

 Township of Edwardstown and at Phillipsburgh. Also in the 

 limestone of the Quebec group, Point Levi. 



Ecculiomphalus spiralis. N. sp. 



Description. — This species resembles a large Pleurotomaria 

 with two whorls disjoined their whole length and distant from 

 each other throughout about half an inch. The cross section of 

 the tube is oval being somewhat flattened vertically the upper side 

 depreseed convex and the lower obtusely carinated. The two 

 whorls make a spiral coil from three to four inches across. 

 The inner whorl is from one inch to one inch and a-half across. 

 The aperture is from three-fourths of an inch to one inch wide 

 measured in the plane of the coil and almost one third less in 

 depth. The surface of the shell, a small portion only of which is 

 preserved on one specimen, is marked by sharp elevated sub-im- 

 bricating transverse lines of growth about five in two lines. 



The inner whorl is elevated a little above the outer forming a 

 depressed spire. 



Can. Nat. 6 Vol. VI. No. 4. 



