324 
CROSSOPTERYGII. 
Form. Sf Loc. Upper Old Red Sandstone: Perthshire, Pifeshire, 
and Roxburghshire. Upper Devonian : Belgium and H.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 Pev. James Noble , about 1840. X 
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. dewalquei ; 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 Bothrioleqns ornata ; 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. 
