33 



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. — PhiUipsburgh 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. 



MURCHISONIA HyALB. (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 promiaent about 

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

 cast. Surface with fine striae 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 IJ inches ; width at base 

 nearly tho 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 

 Eunema Mrigone. 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 ia which the striae curve backwards shews that this 

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

 chisonia. 



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

 Canada East. Upper part of the Umestone. In beds holding fossils 

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

 Umestone. 



Collector. — Dr. P. J. Famsworth. 



MUBCHISONIA Hermionb. (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 simUar 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 smaU portion of the sheU remaining on the body whorl 



