22 
ACTINOPTEEVGir. 
part of the mandible, and the pectoral, pelvic, and frag¬ 
mentary dorsal fins; English Chalk. Bowerhank Coll. 
P. 1812. Eragmentary head, probably of the same species; Lower 
Chalk, Dorking. Egerton Coll. 
The so-called Clujgea curta (J. W. Davis, Trans. Eoy. Dublin Soc. 
[2] vol. iii. 1887, p. 579, pi. xxxiii. fig. 5) is based on a fragment 
probably of Osmeroides from the Upper Cretaceous of Hakel, 
Mt. Lebanon. The type specimen is in the Edinburgh Museum of 
Science and Art (A. S. Woodward, Ann. Mag. Nat. Hist. [7] vol. ii. 
1898, p. 409). 
Generically and specifically indeterminable scales have also been 
described under the following names :— 
Osmeroides hdgicus, T. C. Winkler, Archiv Mus. Teyler, vol. iv. 
(1876), p. 3, pi. i. fig. 1.—Lower Eocene (Heersian); 
Limhourg, Belgium. 
Osmeroides divaricatus^ H. B. Geinitz, Denkschr. Ges. fiir Naturk. 
&c. Dresden z. Eeier 50 jahr. Bestehens, 1868, p. 42, pi. ii. 
figs. 18-22; A. Eritsch, Bept. u. Eische hohm. Kreideform. 
(1878), p. 34, fig. 58.—Turonian ; Saxony and Bohemia. 
Osmeroides'pectinolepis., G. D. Eomanovsky, Material. Geol. Turke- 
stansk. Kraya [in Eussian], pt. iii. (1890), p. 122, pi. xvii. 
fig. 5,—Cretaceous ; Turkestan. 
Genus ELOPS, Linnaeus. 
[Syst. Nat. ed. 12, 1766, p. 518.] 
Trunk somewhat laterally compressed, abdomen fiattened. Pari¬ 
etal bones in contact in the median line; mandible a little promi¬ 
nent; two supramaxillary bones; margin of the jaws, the vomer, 
parasphenoid, palatine, and pterygoid bones, and the tongue, with 
clusters of minute pointed teeth. Gill-rakers long and slender; 
operculum simple; branchiostegal rays about 24 to 30 in number. 
Pectoral and pelvic fins each with an enlarged and elongated scale 
at the base ; dorsal fin opposite or nearly opposite the pelvic pair ; 
anal smaller than the dorsal fin ; caudal fin deeply forked; no fin- 
rays excessively elongated. Exposed portions of canal of lateral 
line simple, never branching; scales usually ornamented with 
delicate radiating ridges. 
A figure of the skeleton of Elojps is given by Agassiz, Poiss. Eoss. 
vol. V. pi. G. fig. 1. 
Though now well represented in all tropical and subtropical seas. 
