244 CONTRIBUTIONS TO CANADIAN PALAEONTOLOGY. 



CONULARIA SaLINENSIS. (N. Sp.) 



Plate 32, Hgs. 9, 9a. 



Shell elongate-pyramidal, transverse section quadrangular, with the 

 opposite sides equal and the alternate ones unequal; faces of the 

 pyramid flattened, each marked with a rounded, narrow and longitu- 

 dinal, median raised line. 



In addition to this median line, the surface of each of the sides is 

 crossed by rather regularly disposed, parallel and nearly equidistant, 

 very narrow transverse ridges, which curve gently foi'ward and are 

 separated by flattened spaces whose width is rather more than twice 

 the breadth of the ridges. "When viewed under a lens, the summit of 

 each ridge is seen to bear a single row of minate pustules, each of 

 which is continued longitudinally forward across the flattened space 

 next to it, as an externally minute linear prolongation. The pustules 

 on any two immediately adjacent ridges are not opposite but alternate, 

 so that the interior prolongations of the pustules are never continuous 

 nor united, or co]iflueut in such a way as to form continuous lines. On 

 each of the sides, too, all the transverse ridges pass over the summit of 

 the median raised line. 



The only specimen collected, which though well preserved is some- 

 what distorted, is nearly jJcrfect at the smaller end but broken at the 

 larger. It actual length is about thirty millimetres. The whole of its 

 flattened sides and a sniall portion of the other two are exposed, the 

 remainder being buried in the matrix. Of the two sides which are 

 fully exposed, the narrower one increases in breadth from two mm. at 

 the smaller end to nine mm. and a half at a distance from it of twenty 

 five mm., and the broader one from two mm. at the same end to thirteen 

 mm. at a corresponding distance. 



Athabasca River, ojiposite La Saline, E.G. .McConncll, 1890: one 

 specimen. 



The discovery of this species and the elucidation of its characters, 

 are entirely due to Mr. L. M. Lambe, who found the type specimen 

 while breaking open a piece of argillaceous limestone containing 

 Leptodesma Jason. 



Its most characteristic feature seems to be the longitudinal raised 

 line in the centre of each of its flattened sides. 



CEPHALOPODA. 

 Orthoceras. 

 In the collection made by Mr. McConnell at the Hay River in ISSt, 



