456 
ACTINOPTEEYGII. 
Thynnus lanceolatus (Agassiz). 
1796. Scomber alatunga, G. S. Volta, Ittiolit. Veronese, p. cxxiii. 
pi. xxix. fig. 1 {errore). 
1796. Salmo cyprinoides, G. S. Volta, ibid. p. ccxiv. pi. lii. 
1818. Clupea cyprinoides, H. D. de Blainville, Nouv. Diet. d’Hist. Nat. 
vol. xxvii. p. 343. 
1818. Scomber altalunga, H. D. de Blainville, ibid. p. 345 (errore). 
1835. Orcynus lanceolatus, L. Agassiz, Neues Jahrb. p. 293. 
1835-44. Orcynus lanceolatus, L. Agassiz, Poiss. Foss. vol. v. pt. i. 
p. 59, pi. xxiii. 
1876. Orcynus lanceolatus, F. Bassani, Atti Soc. Veneto-Trent. Sci. 
Nat. vol. iii. p. 183. 
1889. Thynnus lanceolatus, B. Storms, Bull. Soc. Beige Geol. vol. iii. 
Mem. p. 178. 
Type. Imperfect fish; Paris Museum of Natural History. 
A comparatively small species, with the caudal region more 
elongated and slender than in T. thynnus. Vertebrae 14 in the 
abdominal, 22 in the caudal region. Pectoral fins relatively large, 
when adpressed reaching beyond end of anterior dorsal; posterior 
dorsal with 12 or 13 rays, arising at middle point between end of 
snout and base of caudal fin; anal fin with 2 spines and 6 articulated 
rays, slightly behind the origin of the posterior dorsal; 12 dorsal 
and anal finlets. 
Form. Loe. Upper Eocene : Monte Bolca, near Verona. 
P. 3946. Imperfect fish 0*22 in length, partly distorted. 
Egerton Coll. 
The extinct species described under the following names also 
seem to belong to this genus, but are not represented in the 
Collection:— 
Orcynus homposchi, D. G. Kramberger, Verhandl. k. k. geol. 
Reichsanst. 1882, p. 29 (name only), and Bad Jugoslav. 
Akad. vol. Ixxii. (1885), p. 48, pi. iii. fig. 1, and Soc. 
Hist. Nat. Croatica, vol. i. (1886), p. 135.—Upper 
Oligocene ; Trifail, Steiermark. [Imperfect trunk ; Uni¬ 
versity Geological Museum, Agram.] 
Orcynus latior, L. Agassiz, Neues Jahrb. 1835, p. 294, and Poiss. 
Foss. vol. V. pt. i. (1835-44), p. 60, pi. xxiv. Scomber 
orcynus, G. S. Volta, Ittiolit. Veronese (1796), p. ccxxvi. 
pi. Iv. fig. 2.—Upper Eocene ; Monte Bolca. [Imperfect 
fish ; Paris Museum of Natural History.] 
Orcynus meclius, F. Bassani, Atti B. Accad. Sci. Napoli [2] vol. iii. 
(1889), no. 6, p. 74, pi. ix. fig. 1.—Lower Miocene : 
