DIPLACAJ^THID^E. 
29 
33596. Imperfect fish, showing large tnberculated dermal scales 
upon the head and portions of most of the spines ; Turin 
Hill, Forfar. Presented by James Powrie , Esg., 1864. 
P. 137. Imperfect fish, displaying most of the spines ; Turin Hill. 
Purchased , 1880. 
P. 138-9. Fragment of the head and anterior portion of the trunk 
of a small fish, preserved in counterpart; also the trunk 
with pectoral arch and most of the spines of a similar 
small individual; Turin Hill. Purchased, 1880. 
P. 1343, P. 1343 a. Imperfectly preserved large fish, about 0*2 in 
total length, displaying variations in squamation ; also a 
small individual exhibiting more of the spines; Turin Hill. 
Egerton Coll. 
P. 584. Counterpart of imperfect second dorsal fin-spine, figured by 
Egerton, loc. cit. fig. 12; Farnell. Egerton Coll. 
P. 1343 b. Three fragmentary impressions of spines ; Farnell. 
Egerton Coll. 
Climatius scutiger, Egerton. 
1860. Br achy acanthus scutiger, Sir P. Egerton, Hep. Brit, xkssoc. 1859, 
Trans. Sect. p. 116. 
1861. Climatius scutiger , Sir P. Egerton, Figs. & Descrips. Brit. Organic 
Hemains (Mem. Geol. Surv.), dec. x. p. 65, pi. viii. figs. 1-10. 
1864. Climatius scutiger, J. Powrie, Quart. Journ. Geol. Soc. vol. xx. 
p. 423. 
1870. Climatius scutiger , J. Powrie, Trans. Edinb. Geol. Soc. vol. i. 
p. 296, pi. xiv. figs. 12, 13. 
Type. Hearly complete fishes ; British Museum (in part). 
A very small species, attaining a maximum length of about 0*06. 
Body elongated, the greatest depth being contained probably more 
than five times in the total length ; head and branchial apparatus 
occupying one fifth of the total length. Spines all short and broad, 
the longitudinal ridges being sometimes tuberculated. Pectoral fin- 
spines stout and slightly arched, about equal in size to the first 
dorsal; four pairs of very short and broad, small, intermediate 
ventral spines; pelvic fin-spines about half as large as the pectoral. 
First dorsal spine shorter, broader, and more curved than the second, 
situated midway between the pectoral and pelvic pairs ; second 
dorsal spine comparatively straight, slender, and pointed, slightly 
more remote and much larger than the anal. Scales mostly small, 
