PLATE XIII. 



Fig. 



1. Elonichtliys pectinatus, Traqnair ; body of fish wanting the caudal fin and the greater 



])art of the head; reduced one seventh. From tlie Edge-Coal Series (Borough 

 Lee L'onstone), Loanhead, near Edinburgh. Li the Collection of the Author. 



2. E/onicht/iys pectinatHs/]L\'^(\\\^\\' ; caudal fin ; reduced one fourth. From Calciferous 



Saudstone Series (roof of Dunnet Shale), Straiton, near Edinburgh. In the 

 Museum of Science and Art, Edinburgh. 



3. Elo7iichtht/s jjectinatus, Traqnair; maxillary bone, with the suborbital prolongation 



broken off; natural size. From the same horizon and locality. Li the Museum of 

 Science and Art, Edinburgh. 



4. Eloniclithys pectinatus, Traqnair; portion of the suborbital part of a maxillary bone ; 



enlarged by one half. From Upper Limestone Series (roof of South Parrot Coal 

 Seam), Niddrie, near Edinburgh. \w Museum of Science and Art, Edinburgh. 



5. Elonichthys pectinatus, '\\^(\w^w ; ornanent from the same fragment ; magnified four 



diameters. 

 0. Eloniclithys pectinatm, Traqnair; a mandible, from tlie Dunnet Shale, Straiton; 

 natural size. The articular notch {ar.) is well seen, also one of the large laniary 

 teeth. Li the Museum of Science and Art, Edinburgh. 



7. Elonichtliys pectinatus, Traqnair; dentary element of mandible seen from the inner 



side; natural size. From the roof shale of the South Parrot Coal, Niddrie. Lithe 

 Museum of Science and Art, Edinburgh. 



8. Eloniclithys pectinatus, Traqunir ; j)ortion of the dentary element of mandible, the 



bone having flaked off except along the upper margin. From the same horizon 

 and locality as the last. 



9. Eloniclithys pectinatus, Traqnair ; tl.mk scale from the type specimen, outer surface ; 



magnified three diameters. Fiom Lower Limestone Series (Gilmerton Ironstone), 



Gilnierton, near Edinburgh. \\\ the Museum of Science and Art, Edinburgh. 

 10. Elonichthys pectinatus, Traqmiir ; inner surface of a similar scale from the same 



specimen ; magnified three diameters. 

 1 1. Elo/iichthys pectinatus, Traqnair; outer surface of a more posterior scale, also from 



the same specimen, and magnified three diameters. 

 12. Elonichthys pectinatus, Traqnair; inner surface of two similar scales from the same 



specimen, anil magnified to the same degree. 



