THE 



CANADIAN 



MTUEALIST AND GEOLOGIST. 



Vol. YI. JUNE, 1860. No. 3. 



ARTICLE. XllL—JSrew Species of Fossils from the Lower Si- 

 lurian Rocks of Canada. By E. Billings. 



(From the Re-port of the Geological Survey for 1860.) 



Straparollus Circe. N. s. 



Fig. 1. Fig. 2. Fig. 3. 



Fig. 1. — Straparollus Circe. Front view. 

 2. — Vertical view of the spire. 

 3. — View of the umbilicus. 



Description. — Depressed conical, heiglit a little more than half 

 the width, apical angle about 125*^; apex rounded, not acute; 

 whorls four or five, with a nearly circular section ; umbilicus 

 deep, conical, extending quite to the apex, about one third the 

 width of the shell. Aperture nearly circular, the height slightly 

 exceeding the width, scarcely indented by the preceding whorl 

 Surface nearly smooth. Suture distinct. 

 Can. Nat. 1 Vol. VI. 



