Review of the New York Geological Reports 



°63 



1. Isotelns gigas. 

 Ly coper don. 



wmena 



1 



2 



3 



3. Favosites 



The same or very analogous species as figures 1, 2, and per- 

 haps 3, occur in the lower part of the blue limestone formation 



West 



them 



Plate 100, fig. 2. Calymene senaria. 



cnrexan 



ws. 7, Triniiclens 



F ig. 2, closely resembles the Dudley trilobite, Calymene Bin- 

 Wenbachii, but supposed to be distinct from it and described by 

 Mfc Conrad under the name of C. senaria; it is one of the most 

 abundant fossils of this rock. Bucklers and post-abdomens of it 



