404 
CROSSOPTERYGII. 
more or less concentric with the three margins. Cranial roof-bones 
in part ornamented with series of tuhercnlations. Scales pointed, 
very finely striated, the striae directed antero-posteriorly and con¬ 
verging behind, more or less irregular, often divided into elon¬ 
gated tubercles in the hinder portion. 
This is the type species of Hoplopygus , Conchiopsis, and Rhab- 
doclerma. 
Form. Sf Log. Coal-Measures: Ohio, England, and Scotland. 
Culm-Measures: North Devonshire. Zs'j Si* *v 
P. 579-81. Three specimens described and figured by Huxley, op. 
cit. p. 20, pi. v. figs. 1-4 ; Linton, Ohio. Egerton Coll. 
P. 746. Typical specimen, wanting the pectoral fins, the second 
dorsal, and the terminal caudal; Linton. Egerton Coll. 
P. 3334. Imperfectly preserved fish, wanting the pectoral and 
terminal caudal fins ; Linton. Enniskillen Coll. 
P. 3332. Imperfect caudal region, showing the terminal fin, labelled 
Coelacanthus lepturus by Agassiz ; Leeds. 
Enniskillen Coll. 
36477. Remains of fish displaying the dorsal fins and the principal 
caudal; Longton, N. Staffordshire. Purchased , 1862. 
P. 748. Remains of trunk showing portions of the air-bladder ; 
Deep Mine, Longton. Egerton Coll. 
P. 3330-31. Two imperfect fishes; Knowles Ironstone Shale, Pen- 
ton, and Deep Mine, Longton. Enniskillen Coll. 
P. 5177. Small fish, with well-preserved scales; Longton. 
Purchased , 1885. 
42382. Imperfect fish ; Gubbin Ironstone, Tipton, S. Staffordshire. 
Purchased , 1870. 
40393. Smaller specimen, in counterpart, wanting head ; Tipton. 
Purchased, 1866. 
30572. Fish with portions of well-preserved fins ; Dalemoor-Rake 
Ironstone, Stanton-by-Dale, Derbyshire. 
Purchased, 1856. 
48055. More imperfectly preserved specimen, in counterpart, dis¬ 
playing the principal caudal fin; Dalemoor-Rake Iron¬ 
stone, Stanton-by-Dale. 
Presented by Moses Rigley, Esq., 1877. 
