PLA.TE IX. 



Fi«. 



1. Ehnic/ifhys liobisoni, Hibbert, sp.; variation intermedius, Traq. ; natural size. From 



the Calciferous Sandstone Series, Wardie. In tlu; (Collection of the Author. 



2. Ehnichihys Robuoni, Hibbert, sp. ; candal portion of another specimen of the same 



variation and from the same locality, previously fiuuied by Agassiz as Amblypteriis 

 pundatm ; natnral size. From Waidie ; in the Oxford University Mnseum. 



3. FJonichiliys Robisoni, Hibbert, sp. ; a flank scale, magnified eight diameters. From 



another of tiie specimens from Wardie, which were figured by Agassiz as 

 Amblyjjlenis ptnwfatun. The denticulations of the posterior margin are broken 

 off. In the Museum of Science and Art, Edinburgh. 



4. I'JIoiiicht/rp Robiaoni, Hibbert, sp. ; scale from the lateral line on the flank of the 



same specimen; magnified eight diametejs. 



5. Elonichfhys ^ Robifioni, W\\)hQvi, sp. ; another scale from the caudal region of the 



same specimen; also magnified eigiit diameters. 

 (). Elo7iichihys Robuoni, Hibbert, sp. ; flank scale from a specimen from Wardie. In 

 the Collection of the Author. Showing the appearance produced l)y the loss of 

 the ganoine layer, which has adhered to the counterpart. Magnifled eight diameters. 



7. J'J/onichthys Robisoni, Hil)bert, s[). ; another scale in similar condition from a 



position further back ; also magnified eight times. 



8. E/onichthys Robisoni, Hibbert, sp. ; sculpture of the dorsal tin-rays from a scjueeze 



in modelling wax taken from the specimen represented in Fig. 1. Same degree 

 of enlargement. 



