This species resembles M. gracilis but is not so slender and has the 

 band not in the middle but a little below the middle of the whorl. 



Locality and Formation. — Phillipsburgh in the County of Missisquoi, 

 Canada East. In the upper part of the Calciferous formation. 



Collectors. — Sir W. E. Logan, Dr. P. J. Famsworth, E. Billings. 



MUKCHISONIA HyALE. (N. Sp.) 



Description. — Short, turbinate ; spire conical ; apical angle about 80° ; 

 whorls four or five, ventricose with a concave spiral band about the middle. 

 The body whorl is large and uniformly ventricose, most prominent about 

 the middle. The upper whorls are small and imiformly ventricose in the 

 cast. Surface with fine strige and a few obscure undulations. These 

 curve backwards at an angle of about 45° to the axis of the shell until 

 they reach the spiral band, below which they at first curve forward and 

 then become more vertical. 



Length of a specimen of four whorls about 1^ inches ; width at base 

 nearly the same ; width of spiral band on the last whorl nearly 2 lines. 



The only specimen seen is about the size and somewhat of the shape of 

 JEimenia Erigone. In that species, however, the small whorls are slightly 

 concave above the spiral band but in this they are convex. The band in 

 this species is not so broad, the last whorl is also not so prominent at the 

 base. The manner in which the striae curve backwards shews that this 

 species has the outer lip notched and it is therefore most probably a Mur- 

 chisonia. 



Locality and Formation. — Philhpsburgh in the County of Missisquoi, 

 Canada East. Upper part of the Umestone. In beds holdmg fossUs 

 approaching in aspect to these of the Chazy or perhaps the Black River 

 limestone. 



Collector. — Dr. P. J. Farnsworth. 



MURCHISONIA HeRMIONE. (N. Sp.) 



Description. — Spire conical, apical angle about 75° ; whorls about four, 

 ventricose, with a strong convex spiral band in the middle, above which is 

 a wide shallow concave band and a similar one below. Between the 

 upper concave band and the suture the whorl is gently convex or nearly 

 flat ; below the lower concave band the body whorl is evenly ventricose. 

 The convex band running all the way to the apex gives a strongly angu- 

 lated appearance to the whorls. The above is the form as seen in a cast 

 of the interior. A small portion of the shell remaining on the body whorl 



