PLATE XV. 
Dalmanites (Coronura) myrmecorhorus. 
See Plates 11 a, 13 and 14. 
Fig. 1. A very large pygidium, natural size, accomjianied by a i-estoration in outline of the other parts of 
the animal, to indicate its probable proportions when entire. This restoration is made fi-om 
data supplied by fragmentary remains of the cephalon and thoi’ax, and from cai’eful comparison 
of the relative proportions of the dilferent parts in entire individuals of various species of 
Dalmanites. 
Corniferous limestone. Near Clarksville, Albany cmnty. 
Fig. 2. A profile of the terminal portion of the same specimen more carefully prepared, showing the con¬ 
tinuation of the axis to the jiosterior border, and the elevated, spinose character of the latter. 
Fig. 3. An outline profile of one-half the jiosterior border viewed from behind, showing the bifid central 
spine. 
Fig. 4. Restoration from a fragment of the smallest individual observed; natural size. 
Corniferous limestone. Cana7idaigua, O^itario county. 
