PLATE XI. 
Dalmanites (Corycephalus) regalis. 
Page 55. 
Fig. 1. A cephaloii, showing the general proportions, the character of the bordei' and the length of the 
genal spines The eyes, a portion of the glabella, the -occipital j ing and part of the right 
anterior margin have been desti-oyed by weatheiing. 
Fig. 2. Profile of the same, showing the elevation of the head, the abrupt anterior slope and the direction 
of the marginal denticulations. 
Fig. 3. Front view of the same. 
Schoharie grit. Knox, Albany county. 
Fig. 4. An imperfect cephalon, showing the eyes and the glabellar lobes. 
Sc.hohai-ie grit. Knox, Albany county. 
Dalmanites (Corycephalus) pyg.m^.us. 
Page 56. 
Fig. 5. An imperfect cephalon, drawn in outline, natural size. 
Fig. 6. The same, enlarged to ten diameters, showing the denticulate character of the fi’ontal margin, the 
elongate glabella and narrow glabellar lobes. 
Cornifei-ous limestone. Canandaigita, Oritario county. 
Fig. 7. Another head of this species, natural size. 
Fig. 8. The same, enlai-ged to ten diameters, showing the position of the eye, the denticulate lateral 
borde]-, and the long cheek-spine. 
Corniferous limestone. Canandaigua, Ontano county. 
