23 



summits of the amiulations where the diameter of the fossil is 18 lines, is 

 about 6 lines. Surface longitudinally marked with small ridges, of which 

 there are four or five in the width of one line. One specimen from Junction 

 Cliff which seems to belong to this species has a large and small set of 

 longitudinal strise, there being two or three of the smaller between each 

 two of the larger. From certain indications, on the cast of one specimen, 

 there would appear to be a set of fine engirdling striae, but these may be 

 appearances only. Siphuncle unknown. West-end ; H. R. Also, Junction 

 Cliff; Div. 1, A. G. T, C. Weston. 



0. MAGNISULCATUM, B., op. cit., p. 330. — Charlcton Point ; H. R. 



0. SiEBOLDi, n. sp. — Shell of medium size, subfusiform, tapering from 

 the last chamber towards the apex at the rate of about twelve hues in a 

 length of seven inches, in which space there are seventeen septa. Section 

 apparently not quite circular. Siphuncle near the centre, small in passing 

 through the septa, but dilated to the width of three lines in the chambers 

 where the diameter of the shell is one inch. Length of the best preserved 

 specimen 13 inches ; length of chamber of habitation 6 inches ; diameter 

 of the last septum 30 fines ; diameter at the aperture 24 lines. Surface 

 unknown. Near the west-end Light-house ; H. R. Also at Gamache 

 Bay ; Div. 1, A. G. T. C. Weston. 



Genus Oncoceras, Hall. 



0. CONSTRICTUM, Hall. — The specimens are slightly more slender and 

 the septa rather more distant. It is probably a variety or at least a very 

 closely aUied species. Near the west-end Light-house ; H. R. 



Genus Gomphoceras, Sowerby. 



G. ? OBESUM, B., op. cit., p. 311. — Charleton Point and Macasty Bay ; 

 H. R. 



Genus Ascoceras, Barrande. 



A. Canadense, B., op. cit., p. 310. — English Head ; H. R. 



A. Newberryi, B., Pal. Foss., vol. i, p. 164.— Engfish Head ; H. R. 

 Also Junction CHff ; Div. 1, A. G. This species occurs on the south side 

 of the St. Lawrence opposite Three Rivers ; H. R. 



Genus Lituites, Breynius. 

 L. ? MAGNiFicuM.= Ghyroceras magnijicum^ B. Rep. 1857, p. 307. 



Genus Nautilus, Linnaeus. 

 N. Hercules, B., op. cit., p. 306.— Charleton Point; H. R. 



