188 



Cyclonbma Ph^dra. (N. sp.) 



Description. — Shell of about three ventricose -whorls ; apical angle 

 about 65° ; surface with numerous spiral stride, or minute carinse, three or 

 four in the width of one line, with concave spaces between, those on the 

 margin the strongest. These are crossed by very fine striae parallel with 

 the aperture. 



The specimen is imperfect and partly imbedded. Its height appears 

 to have been about 8 lines. The surface characters are similar to those of 

 0. lilix, but the whorls are more convex, and the suture more deeply 

 impressed. 



Locality and Formation. — Near St. Antoine, above Quebec, in a boulder 

 with SiihuUtes Psyche ; Quebec group. 



Collector. — J. Richardson. 



SuBULiTES Psyche. (N. sp.) 



Fig. 169. 



Description. — This species is only known by several fragments. Whorls 

 five or six, depressed convex, with the suture shghtly impressed, resem- 

 bling, in these respects, all the other species of the genus. The largest 

 specimen examined, consists of the last three whorls, the apical two or 

 three broken off. Its length is 21 lines, and diameter of last two whorls, 

 12 lines. When perfect it must have been about 2^ inches in length. 



It is larger than S. ptiella, but not so slender in its proportions, and it is 

 much smaller than S. suhfusiformis of the Trenton limestone. 



Locality and Formation. — Near St. Antoine, above Quebec, in a 

 boulder, with trilobites of the Quebec group. 



Collector. — J. Richardson. 



Ophilbta profunda. (N. sp.) 



Description. — The specimen is twelve lines in diameter, and consists of 

 three whorls, including a minute one in the centre. Upper side of whorls 

 uniformly convex ; suture distinct ; outer side gently convex, most tumid 

 a little above the mid-height ; umbilicus about three-fourths the whole 

 width with an acutely rounded edge ; inner side of whorls in the umbilicus 

 gently convex. Surface unknown. 



The spire is depressed below the outer whorl, so that the specimen is 

 doubly concave. The width of the specimen is 12 lines, and as the last 



