314 PALEONTOLOGY OF NEW-YORK. 



Ficr. 1 a. A portion of a large specimen, with the smaller extremity broken oK 

 Fig. 1 b. Section of the last. 



Fig. 1 c. A smaller specimen, very perfectly terminated at both extremities. 

 Fig. 1 d. A minute specimen of the same species. 



Position and locality. These specimens ( 1 c and d ) are from the semi-altered slates near 

 Waterford. The other specimen is from the calcareous beds associated with the same slate, 

 near Trov. 



