﻿DIPLACANTniD^E. - / 



there is thus no justification for the proposed change in nomen- 

 clature. 



Fowl <$f Loc. Lower Old Red Sandstone : Nairnshire, Banffshire, 

 Cromarty, and Orkney Isles. 



49184. Specimen showing displaced dorsal spines, the anal, and 

 portions of the pectoral arch, in counterpart ; Lethen Bar. 



Purchased, 1878. 



P. 1362. Fragment, with first dorsal fin ; Lethen Bar. 



Egerton Coll. 



P. 5076. Imperfect specimen, in counterpart, with pectoral, pelvic, 

 and anal spines, and a fragment of the second dorsal ; 

 Lethen Bar. Presented by J. E. Lee, Esq., 1885. 



P. 1361. Nodule with imperfect remains of a fish ; Gamrie. 



Egerton Coll, 



P. 4040. Large, well-preserved specimen, in counterpart, lateral 

 aspect ; Gamrie. Purchased, 1883. 



P. 4041. Smaller fish, in counterpart, shown from the ventral and 

 lateral aspects, and displaying part of the pectoral arch 

 with the median pectoral spines ; Gamrie. The specimen 

 is represented, of the natural size, in PI. III. fig. 1, and 

 the various parts indicated by the lettering. It is of 

 especial interest as exhibiting very distinctly the lower 

 expanded portion of the right side of the pectoral arch, 

 with a short, stout, straight, acute spine, directed back- 

 wards from its median end. Unfortunately, however, no 

 precise details of the basipterygium of the pectoral fin can 

 be observed. Purchased, 1883. 



P. 5075. Nearly complete fish, lateral aspect, in half of nodule ; 

 Gamrie. Presented by J. E. Lee, Esq., 1885. 



P. 6188. Trunk with fins and part of head, in counterpart ; Gamrie. 



Purchased, 1890. 



P. 176. Very imperfectly preserved specimen in flagstone; Orkney. 



Purchased, 1881. 



P. 1369. Similar fossil ; Orkney. Egerton Coll. 



