﻿30 ACANTHODII. 



smooth or externally sculptured ; a single series of somewhat larger 

 ridge-scales between the occiput and the first dorsal fin. 

 Form, fy Loc. Lower Old Red Sandstone : Forfarshire. 



35907-8. Two fine specimens, the second measuring not more than 

 0-035 in length and exhibiting the extremely attenuated 

 tail ; Farnell. Presented by James Powrie, Esq., 1861. 



P. 561-2. Two of the type specimens, figured by Egerton, he. cit. 

 (1861), pi. viii. figs. 2, 3 ; Farnell. Egerton Coll 



P. 1341. Fish wanting the extremity of the caudal region ; also a 

 fragment of the head and abdominal region ; Farnell. 



Egerton Coll. 



P. 3263. Two small specimens : Farnell. Enniskillen Coll. 



Climatius uncinatus, Powrie. 



1864. Climatius uncinatus, J. Powrie (ex Egerton, MS.), Quart. Journ. 



Geol. Soc. vol. xx. p. 422. 

 1870. Climatius uncinatus, J. Powrie, Trans. Edinb. Geol. Soc. vol. i. 



p. 296, pi. xiv. fig. 11. 



Type. Fish ; collection of James Powrie, Esq., Reswallie. 



A small species, attaining a maximum length of about 0*1. Body 

 elongated ; head and branchial apparatus occupying about one fifth 

 of the total length. Spines broad, but elongated. Pectoral fin-spines 

 the largest, considerably arched, with large posterior denticles ; 

 four pairs of short and broad, small, intermediate ventral spines ; 

 pelvic fin-spines about half as large as the pectoral. First dorsal 

 spine straight, almost identical with the second ; the latter some- 

 what larger than the anal and placed slightly in advance of this. 



Form. 8f Loc. Lower Old Red Sandstone : Forfarshire. 



P. 1342. Imperfect specimen, showing portions of denticulated 

 pectoral spines ; Turin Hill, near Forfar. Egerton Coll. 



Climatius macnicoli (Powrie). 



1864. Euthaeanthus menicoli, J. Powrie, Quart. Journ. Geol. Soc. vol. xx. 



p. 425, pi. xx. fig. 2. 

 1870. Euthaeanthus m'mcoli, J. Powrie, Trans. Edinb. Geol. Soc. vol. i. 



p. 290, pi. xi. fig. 3. 

 1890. Climatius macnicoli, Woodward & Sherborn, Cat. Brit. Foss. 



Yertebrata, p. 36. 



Type. Complete fish ; collection of James Powrie, Esq., Beswallie. 

 A species of large size, about 0-17 in maximum length. Body 



