•248 
ACTINOPTERYGII. 
insertion. Scales marked with radiating grooves on the hind 
part of their inner face. 
Form. Sf Loc. Upper Cretaceous : Westphalia. 
P. 1855. Fine specimen displaying all the fins ; Baumbeig- 
Egerton Coll- 
P. 1855 a. More imperfect specimen deepened hy distort! 
Baumberg. Egerton 
P. 3817. Two distorted specimens ; Baumberg. Enniskillen 
P. 9058. Three specimens, two being small; Baumberg. 
Purchased, 
P. 1856. Slightly distorted fish with dorsal fin displaced t'orwa 
and a larger imperfect specimen ; Sendenhorst. ^ ^ 
33058. Large trunk ; Sendenhorst. Purchased, 1 s ’"' 
Tho following species in the Cope Collection, from the 
Cretaceous (Niobrara Group) of Dakota, U.S.A., have also 
described, but are not represented in tho Collection : 
Sardinia# lineatus, E. D. Copo, Bull. U.S. Gool. Surv. vol. 
(1878), p. 71. 
Sardinius nasutulus, E. D. Cope, ibid. p. 70. 
Sardinia# percrassus, E. D. Cope, ibid. p. 72. 
The systematic position of the fish described as follows is <1 
uncertain : — 
(V) Sardinius blackburnii, E. D. Cope, Amer. Nat. vol. xxv- ( y t 0 ta, 
p. 654 . — Lower Tertiary (?) ; ltee Hills, South 
U.S. A. [Imperfect trunk.] 
Genus DACTYLOPOGON, W. von dcr Marck. 
[Palmoutogr. vol. xv. 1868, p. 278.] ^ 
Head small, trunk elongated and much laterally . comp ^.^,g 
Cranial roof and posterior cheek-platcs ornamented with ij ^ ^ 
rugoc. Branchiostogal rays about 12 in number. '" L ' rl | C cun trs. 
proximately 70 in number, about half being caudal; tie ^ 
not longer than deep. Pectoral fins inserted close to the 
border, the foremost ray much elongated and closely •>* 1 ^ an£ J 
but simple ; pelvic fins smaller than the pectorals ; dorsa 
