212 NEW YORK STATE MUSEUM 



the smooth exterior of the shell and the casts of the interior bearing the 

 fillings of the spine tubes, crossing the cardinal region of the pedicle valve, 

 none emerging on the exterior. 



Localities. Along the shore outcrops of limestone 8, at and above 

 Fruing's and Lehuquet's, Grande Greve. 



Crania pulchella Hall & Clarke 



Plate 47, figures 11-15 



Crania pulchella Hall & Clarke. Palaeontology of New York. 1892. v. 8, 



pt I, p. 180, pi. 4, fig. 3 

 Crania pulchella Clarke. N. Y. State Mus. Mem. 3. 1900. p. 58, pi. 8, 



fig. 16-18 



This is a radiated Crania which was described from the Helderbergian 

 fauna of New York but also occurs in the Oriskany of Becraft mountain 

 and Glenerie. 



Locality. The shore outcrops at Grande Greve. 



Craniella (?) grandegrevensis nov. 



Plate 47, figure 16 



This is one of the larger Cranias with smooth, i. e. unribbed surface. 

 All the parts of the shell observed, which are upper valves, show a flat 

 marginal border, the characteristic small posterior and subcentral anterior 

 scars, with apex subcentral or posterior. Contour and margin irregular so 

 that the marginal outline is irregularly circular, though the posterior margin 

 is always straight. 



Dimensions. Length i6 mm ; greatest width 20 mm. 



Localities. At Fruing's, Grande Greve. A small shell of similar 

 character also occurs in the Perce Rock. 



Pholidops cf. ovata Hall 



Plate 47, figures lo, ii 



6<?^ Hall. Palaeontology of New York. 1859. 3: 490, pi. 1C3B, fig. 7 



Hall & Clarke. Palaeontology of New York. 1892. v. 8, pt i, pi. 41, fig. 27-29 



Species of Pholidops are for the most part of such similar character 

 that the small shells which occur in these limestones are here referred to as 

 probably identical with Ph. ovata which is the name given to the 

 Helderbergian species of New York. A shell like these was noticed by the 

 writer as occurring in the Oriskany of Becraft mountain.' 



Localities. At Grande Greve and in Perce Rock. 



"N. Y. State Mus. Mem. 3. 1900. p. 59, pi. 8, fig. 21, 22. Pholidops sp. ? 



