DIPL AC ANTHTDJE. 
31 
elongated, the greatest depth being contained more than five times 
in the total length. Spines comparatively straight and narrower 
than in the type species ; longitudinal ridges usually smooth. 
Pectoral fin-spines straight, scarcely larger than the first dorsal; 
five pairs of intermediate ventral spines, separated by a distinct 
interval from the pelvic fin-spines ; the latter at least two thirds as 
long as the pectoral pair. First dorsal spine shorter and stouter 
than the second, situated midway between the pectoral and pelvic 
pairs : second dorsal spine very slightly in advance of the anal, 
about equal to this in size. Scales smooth. 
This is the type species of Euthacanthus , Powrie. 
Form. Loo. Lower Old Led Sandstone : Forfarshire. 
P. 1337. Imperfectly preserved trunk, wanting the head and tail, 
but exhibiting the situation and proportions of the spines; 
St jo-, 
i s\re . • 
Climatms grandis (Powrie). 
1870. Euthacanthus grandis , J. Powrie, Trans. Edinb. Geol. Soc. vol. i. 
p. 292, pi. xii. fig. 6. 
Type. Fragments of fish ; collection of James Powrie, Esq., Les- 
wallie. 
A very large species, attaining a maximum length of not less 
than 0*6 (according to Powrie). Body much elongated. Spines 
comparatively straight and narrower than in the type species ; lon¬ 
gitudinal ridges usually smooth. Pectoral fin-spines straight, pro¬ 
bably about equal to the first dorsal in size ; not less than four pairs 
of intermediate ventral spines, separated by a distinct interval from 
the pelvic fin-spines; the latter at least two thirds as long as the 
pectoral pair. First dorsal spine smaller than the second, situated 
somewhat nearer to the pectoral than the pelvic pair ; second dorsal 
spine slightly in advance of the anal, and much larger than the 
latter. Scales of the Hank in the abdominal region ornamented 
with a few short horizontal striae in the anterior half; other scales 
mostly smooth. 
Form. Sf Log. Lower Old Led Sandstone : Forfarshire. 
Egerton Coll. 
Forfar. 
38597. Crushed trunk of small individual, wanting head and 
extremity of the tail, showing four pairs of intermediate 
ventral spines and portions of the pelvic, anal, and dorsal 
fin-spines ; Turin Hill, Forfar. 
Presented by James Poivrie , Esq., 1864. 
