PLATE XXV—Continued. 
Proetus Phocion. 
Page 125. 
Fig-. 9. A very imperfect enrolled specimen, retaining the crust, showing the broad sulcate border and the 
flattened, shai-ply ridged cheek. 
Hamilton group. Indian Cove, Gaspe, Province of Quebec. 
Fig. 10. The type specimen ; an entire individual preserved as an internal cast, showing the relatively 
stout body, the sharply i-idged cheeks and the sparsely annulated pygidium. 
Hamilton group. Indian Cove, Gaspe, Province of Quebec. 
PlIAETHONIDES CYCLURUS. 
Page 137. 
See jilate 24. 
Fig. 11. The intra-sutural portion of the ceiihalon,’.showing the charactei- of the surface ornamentation. 
Lower Helderberg group. Near Clarksville, Albany county. 
Phakitionides arenicolus. • 
Page 134. 
An imperfect pygidium, enlarged to three diameters, showing the conspicuous axis, the marginal 
spinules and the bases of other spinules on the annulations. 
Schoharie grit. Schoharie coimty. 
A larger pygidium, preserved as an internal cast and referred with much hesitation to this species. 
Enlarged to two diameters. 
Upper Helderberg limestone. North Cayuga, Province of Ontario. 
PhaETHONIDES (?) DENTICULATUS. 
Page .139. 
Fig. 14. A poi'tion of the cephalon, showing the Proetoid glabella with its distant lateral fui-i-ows. 
Fig. 15. The pygidium which is taken as the type form of the species. 
These figures are j-eproduced from the original engravings (U. S. Geol. Expl. Fortieth Parallel, 
pt. 1, Palaeontology, pi. 1, figs. 10 and. 10a), and are enlarged to about one and one-half diam¬ 
eters. The specimens have not been accessible for study and the species is referred with great 
doubt to' the genus Phaethonides. 
Devonian. Steptoe Valley, Nevada. 
Fig. 12. 
Fig. 13. 
i. 
