126 Proceedings of the Royal Physical Society, 



Oil Works. It occurred in the productive oil sliale, and is 

 not contained in a nodule. 



(7.) Spine allied to Sphenacanthus. 



A mere fragment found by Mr Peacli at Hermand, West 

 Calder. Another fragment, still more imperfect, is in the 

 collection of Mr Gibson. 



II. Fish from Broxburn. 



The oil shales wrought at Broxburn, in Linlithgowshire, 

 are considered by Professor Geikie to occupy a lower position 

 in the series than those of West Calder and Oakbank. Fish 

 remains seem to be excessively rare in the present workings, 

 but I am indebted to the Eev. Professor Duns for the loan of 

 a beautiful specimen of a hitherto undescribed fish, which he 

 found some years ago on the bank of a shale pit now disused. 

 I have, therefore, great pleasure in naming the species after 

 its discoverer. 



Elonichthys Dunsii, sp. no v. 



Professor Duns's specimen presents us with a fish entire in 

 all respects, save that the extremity of the tail is shown only 

 as a somewhat obscure impression. In length it measures 6 

 inches, in greatest depth If inches. The shape is deeply fusi- 

 form, the depth of the body at the commencement of the 

 dorsal fin being contained about three and a half times, the 

 length of the head about five times, in the total. The head 

 appears, therefore, short and deep; the anteriorly-placed 

 orbit and projecting snout are well defined, as well as the 

 wide gape and the oblique position of the hyomandibular 

 element. A thin layer of the matrix obstinately adhering to 

 the surface of the bones prevents their further description, 

 save that the sculpture of the cranial roof-bones is seen to be 

 of a finely tuberculo-rugose character; the lower end of the 

 clavicle is, however, clearly exhibited, and is ornamented 

 with rather coarse, well-defined, flattened rugte. The scales, 

 of which forty oblique bands may be counted between the 



