280 
ACIINOPIUKi'GII. 
Synopsis of Genera. 
I elvie fins excessively enlarged : caudal forked ; 
no dermal scutes Chirothrix (P‘ *&))• 
I’ectoral fins larger than pelvic pair ; caudal .. 
forked ; dorsal dermal scutes Telcphohs (p- - / 
Pectoral fins larger than pelvic pair; caudal 
rounded ; ? no dermal scutes Exoccetoides (p. 
Genus CHIROTHRIX, Pictet & Humbert. 
[Nouv. Rech. Poiss. Foss. Mt. Liban, 1866, p. 51.] 
Syn. Meyapus, C. Schliiter, Palseontogi’. vol. xv. 1868, p. 276. 
Meyistvjms, fl. Landois, Neues Jahrb. 1894, vol. ii- p- ~ 
Head relatively large and jaws apparently toothless ; the ar ^ 
branchiostegal rays 8 or 9 in number. Vertebra) between 50 a ^ 
60 in number, about 25 being caudal. Fin-rays mostly divide 
well as articulated distally. Pectoral fins arising near the ven 
border, delicate and much smaller than the pelvic pair, 
with only 
one ray considerably elongated ; pelvic fins very large, with 
expanded pelvic bones, close to the pectoral pair ; dorsal fin arl ® 
immediately behind the head, and occupying less than half 0 
back; caudal fin forked. No dermal scutes. 
Chirothrix libanicus, Pictet & Humbert. 
[Text-figure 10.] 
L T> i poiss- 
1806. Cheirothrix libanicus, Pictet & Humbert, Nouv. Rec 
Foss. Mt. Liban, p. 52, pi. v. fig. 1. 
1808. Meyapus, C. Schliiter, Palocontogr. vol. xv. p. 275. ia th." 
1882. Cheirothrix libanicus , F. Bassani, Denkschr. k. Akad.V iss., 
naturw. Cl. vol. xlv. p. 273. „ rg] 
1887. Cheirothrix libanicus, J. W. Davis, Trans. Roy. Dublin 
vol. iii. p. 527, pi. xxvi. figs. 3, 4. i ;jj, 
1888. Cheirothrix libanicus, K. A. von Zittel, Ilandb. Palaeon . v 
p. 311, fig. 319. 
Type. Imperfect fish ; Geneva Museum. 0 f 
The type species, attaining a length of about O'll.. ° n ^ e pth 
head with opercular apparatus equalling twice the maximum ^ 
of the trunk, and half its length from the pectoral arch to 0 ^ 
of the caudal fin. Pectoral fins with about 13 delicate bi u ' 
rays, decreasing in length both forwards and backwards, t ^ 
being excessively elongated ; pelvic fins comprising about ^ . 
the longest reaching the caudal fin when adpressed to the ’ 
dorsal fin, with 16 rays, much elevated, the length of t io 
