PLATE XIX B— Continued. 
Lichas (Ceratolichas) dragon. 
Page 85. 
14. 
Fig. 
15. 
Fig. 
16. 
Fig. 
17. 
Fig. 
18. 
Fig. 
18b. 
the foul- spine-base.s on the posteriof extremity of this lobe and the spine-bases near the eye- 
nodes. 
A profile view of the same, the outline of the cephalon being restored, and showing in i-estoration 
the 2 )robable length of the four jiairs of sjiines. 
Corniferous limestone. Schoharie, Schoharie county. 
A jiortion of the frontal lobe of the glabella enlarged to two diameters; showing jiart of one 
sjune of the outer jiair, the bases of the other one and of the inner ^lair. 
The same, in 2 >rotile. 
Cornifei-ous limestone. Schoharie, Schoharie county. 
A very small glaliella, i-etaining the inner pair of .s^hiies and ]wrtions of the others. 
Corniferous limestone. LeRoy, 
county. 
Lichas (Dicranogmus) ptyonurus. 
Page 86. 
Fig. 19. The inti'a-sutural {lortion of the cejihalon, enlarged tc) two diametei's ; showing the form and 
character of the glabellai' lobes and furrows. 
Niagara grou^i (Coralline limestone). ScJioharie, Schohane county. 
Fig. 20. A jiygidium, accomjianied by the last thoracic segment, enlarged to two diameters. 
Niagara grouji (Coralline limestone). Schoharie, Schoharie county. 
Fig. 21. A Rjnaller but more jrerfect jrygidium, enlarged to two diameters, jireserving the margin entire, 
and showing the number and charactei- of the marginal sjiines. 
Niagai-a group (Coralline limestone). Schoharie, Schoharie county. 
