PLATE XV. 



DALMANITES (CORONURA) MYRMECOPHORUS. 

 See Plates 11 a, 13 and 14. 

 Fig. 1. A very large pygidium, natural size, accompanied by a restoration in outline of the other parts of 

 the animal, to indicate its probable proportions when entire. This restoration is made from 

 data supplied by fragmentary remains of the cephalon and thorax, and from careful comparison 

 of the relative proportions of the different parts in entire individuals of various species of 

 Dahnanites. 



Corniferous limestone. Near Clarksvttle, Albany county. 

 Fig. 2. A profile of the terminal portion of the same specimen more carefully prepared, showing the con- 

 tinuation of the axis to the posterior border, and the elevated, spinose character of the latter. 

 Fig. 3. An outline profile of one-half the posterior border viewed from behind, showing the bifid central 



spine. 

 Fig. 4. Restoration from a fragment of the smallest individual observed; natural size. 

 Comiferous limestone. Canmulaigua, Ontario county. 



