no NEW YORK STATE MUSEUM 



Nucleospira ventricosa Hall 



Nucleospira ventricosa Hall. Palaeontology of New York. 1859. 3:220, 

 pi. 14, fig. I ; pi. 28 b, fig. 2-9 



Specimens of this Helderbergian species appear occasionally at Cape 

 Rosier Cove. 



Meristella laevis Vanuxem 



Atrypa laevis Vanuxem. Geol. N. Y. 3d Dist. 1843. P- 120, fig. 2 

 Merista laevis Hall. Palaeontology of New York. 1859, v. 3, pi. 39, fig. 3,4 

 Meristella laevis Hall & Clarke. Palaeontology of New York. 1894. v. 8, pt 2. 

 Pl- 43. fig- 3-6 ; pl. 44, fig- 4 



This species from the Coeymans and New Scotland beds of Eastern 

 New York, occurs rarely and in diminished size at Cape Rosier Cove. 



Spirifer perlamellosus Hall (?) 



cf. Spirifer perlamellosus Hall. Palaeontology of New York. 1859. 3:201 

 pl. 26, fig. I, 2 



Examples of these shells, so far as observed, bear but four ribs on each 

 side of fold and sinus and are quite coarsely lamellose. For the most part 

 they have a very high cardinal area though in this regard are not unlike some 

 of the New York shells from the Helderbergian. The species at Dalhousie 

 is less extreme In this respect. 



Locality. Cape Rosier Cove, upper beds. 



Stropheodonta patersoni precedens nov. 



For description see p. i86 



Tentatively a series of specimens from the St Alban beds is referred to 

 this mutation. 



Stropheodonta rosier! nov. 



Plate 35, figures i, 2 



This is a small shell characterized by its simple, relatively coarse and 

 highly angular plications which increase by implantation starting with 8-10 

 at the beak and becoming twice that number at the margin. Over these 

 and in the intervals are fine radiating surface lines. The umbonal region 

 is crenulated by undulating concentric lines which may sometimes extend 

 over the whole surface. The shells have thus some of the characters of 

 S. patersoni precedens of the Grande Greve limestones and of 

 those known in the New York rocks as S. vari striata, but the 

 divergence from either is apparently fixed. 



Locality. Cape Rosier Cove, lower beds. 



