PLATE XII. 



Fig. 



1. Elonickt/it/s pulcherrimus, Traquair; natural size. Frotn Calciferous Sandstone 



Series, Glencartholin, Eskdale. In the Collection of the Author. 



2. Elonichtliys jjidckerrimus, Traquair ; flank scales from the type specimen in the 



Collection of the Geological Survey of Scotland ; magnified four diameters. 



3. E(onichthi/s ptflcherri)iius,'V\'i\i\\m\v ; scales from the caudal region ; magnified four 



diameters. 



4. HlonichiJnjs jmlcherrhnus, Traquair ; sculpture of the rays of the dorsal fin ; 



magnified. 



5. Elonichtliys serratus, Traquair ; natural size. From Calciferous Sandstone Series, 



Glencartholm, Eskdale. In the Museum of Science and Art, Edinburgh. 



6. E/onichthys serrafus, Traquair ; flank scales froni one of the type specimens in the 



Collection of the Geological Sm-vey of Scotland ; magnified six diameters. 



7. Elonichtliys serratus, Traquair; scales from the caudal region; magnified six 



diameters. 



8. Elonichl/u/s serratus, Traquair; configuration of rays of the dorsal fin in the speci- 



men represented in Fig. 5 ; magnified. 



9. Elon/chthys microlejjiclotus,'\.\-aq\.Vim ; natural size. From Coal Measures (Knowles 



Ironstone Shale), Fenton, Staffordshire. Type specimen. In the Ward Collec- 

 tion, British Museum. 

 10. Elonichthys vncrolcpidotus, Traquair; flank scales from the same specimen; 

 magnified. 



