﻿324 CROSSOPTERYGII. 



Form. 6f Loc. Upper Old Red Sandstone : Perthshire, Fifeshire, 

 and Roxburghshire. Upper Devonian : Belgium and N.W. Russia. 



P. 6258. Type specimen described and figured by Agassiz ; Clash- 

 bennie, Perthshire. The fossil exhibits the ventral aspect 

 and displays, in addition to the features noticed by Agassiz, 

 a considerable portion of the large, acutely-lobate pectoral 

 fin of the right side : the obtuse lobation of the pelvic 

 pair is also very distinct. The best figure of a typical 

 scale is given in Murchison's Silur. Syst. pi. ii. bis. fig. 2. 

 Purchased from Rev. James Noble, about 1840. 



11531. Impression of fragments of head-bone and scales ; (?) Clash- 

 bennie. Mantell Coll. 



P. 3283. Fragments of bones and scales of a large individual ; 

 Clashbennie. Enniskillen Coll. 



P. 701. Fragment of bone and scales ; Clashbennie. Egerton Coll. 



47725. Associated fragments of very large scales ; Clashbennie. 



Presented by Dr. Lauder Lindsay, 1876. 



50007. Group of imperfect large scales ; Clashbennie. The 



impression of one scale shows the anterior tuberculations 

 described as characteristic of H. deivalquei ; Clashbennie. 



Trevelyan Bequest. 



P. 6014. Group of very large scales, one measuring 0*07 from side 

 to side, and another exhibiting the anterior tubercula- 

 tions described as characteristic of H. dewalquei ; Clash- 

 bennie. Purchased, 1889. 



47724. Two imperfect scales ; Maxton, Roxburghshire. 



Presented by Dr. Lauder Lindsay, 1876. 



50008. Small scale, showing anterior tuberculations ; Black Hill, 



near Melrose. Trevelyan Bequest. 



19809 a. Fragments of scales probably of this species ; " Yaldai 

 Hills," Russia. Purchased, 1845. 



43452. Fragments of similar scales in similar matrix, associated 

 with imperfect plates of Bothriolepis omata ; Prikscha, 

 Govt, of Novgorod. 



Presented by Kenneth Murchison, Esq., 1872. 



P. 711. Slab of sandstone with numerous fragments of fishes, 

 including a well-preserved scale apparently of this species ; 

 Russia. Egerton Coll. 



