TUNNINA. 



93 



the true Mackerels. The height of the anal tin in both 

 species seems to vary between 60 % and 70 % of the lengtli 

 of the ventral tins, while in the true Tunnies, as well 

 as in Felamis, it is generally greater than or at least 

 (in youth) equal to the lengtii of these fins. 



Like the otlier members of the genus, the Eiithynni 

 are pelagic fishes, belonging to the tropic and tempe- 

 rate seas, and only appear as occasional visitors within 

 the limits of the Scandinavian fauna. 



THE TUNNINA. 



EUTHYNNUS ALLITTERATUS. 



Fig. 26. 



Distance hctircen the first dorsal fin and the tip of the snout less than 28 % of the length of the body. Height 

 of the posterior donal fin about ^;^ of the length of the head. The hind portion of the back steel-blue marked 

 u-itli wavji black bands and spots, irhich melt into varying figures. The belly silvery, either plain or marked with 



black spots. 



Fig. 26. Eutlii/iuiHS aUitUraUtf!. .^fter XlLSSON. 



R. br. 1; D. 15 1. 16/ 



-^— VIII 1. IX: ^.4r'-i'vi- 



10 — 1-2' 10—12 



VIII; P. 26 ). 27; V. \^; C. x+lS+.c. 



Syii. Scomber allitteratus, Rafin., Car. Niiov. Gen., p. 46; Jord., 

 , GiLB., (Euthyiinus) Syn. Fish. A'. Amer., Bull. U. S. Nat. 

 Mus., No. 16, p. 430. 



Scoi7iber Uoinmersonii, Risso, Ichth. de Nice, p. 163. 



Scomber quadripunctatus, Geofi'r., Descr. de I'Egypte, Poiss., 

 Inb. 24, fig. 5. 



Scomber leachianiis, Risso, Eur. Me'r.. rcil. Ill, p. 416. 



Scomber ihnnina, Cuv., R'eyn. Anim., ed. 2, vol. II, p. 198; 

 Cuv., V.\i,., {Thynnn.'s thiiiinina) Hist. Nat. Poiss., vol. VIII, 

 p. 104, tab. 221; Id. (Scomber) R'egn. Anim. Illnstr., 

 Poiss., p. 118, tab. 46, fig. 1; Schi.eg. {Thynnus) Fn. 

 Japon., 4, Pisces, p. 95, tab. 48; Gthr, Cat. Brit. M'ls., 

 Fish., vol. II, p. 364; Nil.ss., Ufvers. Vet.-Akad. Forh. 1863, 

 p. 499, tab. 5; Malm, Gbgs, Boh. Fn., p. 416; Ltkn, 

 Viii. Metldel. Xaturli. For. Kbhvn. 1879 — 80, Heft. 3, 



Ofvers. Vid. Mod., p. II; Wisth., Naturh. Tidskr. Kbhvn., 



ser. Ill, vol. XII, p. 14; Id. Zool. Dan., Fiske, p. 24; 



MoR., Hist. Nat. Poiss. Fr., vol. II, p. 421; Coll., Foih. 



Vid. Selsk. Christ. 1882, No. 19, p. 1; Lillj. (Orcynopsis) 



Sv., Norg. Fi.<ikar, vol. I, p. 270; Coll. {Euthynnus) N. 



Mag. Naturv., Bd. 29 (1884), p. 58. 

 Thynnus brevipinnis, Cuv., Val., 1. c. p. 112 (Cf. Lvtkek, 



Spol. Atl., 1. c, p. 467). 

 Thynnus brasiliensis, Cuv., Val., 1. c, p. 110 (Cf. Gthr, 



Cat. 1. c). 

 Thynnus ajjinis, Cantor (Cf. Day, Fish. Ind., p. 252: Ltkn, 



Sp. Atl., 1. c, p. 467). 



CuviER states that the distinction between the 

 Tunniiia and the Tunny was known to Aristotle; and 

 he also refers to this species Aldrov.^xo's Pelamis 

 coerulea. Before Clvieks time Rafixesque and Kisso 



