1138 



SCANDINAVIAN FISHES. 



a league from Christiania, a specimen 16 dm. long was 

 caught, according to ("ollett, on tlie 1st of February, 

 1878. Petersen cites a specimen "nearly 4 Danish 

 ells (874 ft-) long," tliat was cast ashore in December, 

 1886, off Tidsvilde on the north coast of Zealand. 

 Kr0Yek was besides informed on trustworthy authority 



tliat the Fox-Shark had once been met with on the 

 west coast of Jutland. 



The flesh of the Fox-Shark is "moderately good," 

 sa3's DoDERLEiN, "though rather hai'd;" but at Cettc 

 it is sold, according to Mokeau, under the name of 

 White Tunny ( Thon hJanc). 



Genus ISURUS. 



Peduncle of the tail marked above and heloiv with a transverse depression and furnished with a lonf/itiidinal ca- 

 rina on each side. Caudal fin crescent-shaped, its length much less than half that of the I'odij. Teeth middle- 

 sized, entire-margined, pointed, in adult specimens ivifh" or irithoiit'' lateral cusjis at the root. 



By its smooth-margined teeth, in the upper jaw j spiracles, at least of adult specimens, are very minute 



too of a narrow triangular form or even subulately i or even obliterated. 



pointed, this genus is distinguished from Carcharodon, I In deference to the current rules of nomenclature 



the most dreaded Shark of the Mediterranean and the I the generic name of Isurus, coined by Rafinesque in 



tropics, often confounded with the Blue Sharks under 1810", must supersede the more generally employed 



the name of man-eater. In both these genera the Ijimna, which was tirst proposed by Ouvier in 1817''. 



THE PORBEAGLE (sw. uabrande.n). 

 ISURUS CORXUBICUS. 



Plate LI, fig. 1. 



Snout conicalhj pointed, its length' about ^/i„ {29 — 31 ?i) of that of the head {to the first gill-opening), which 

 measures about '/j {18 — 22 %) of that of the body. Teeth of a narrow triangular form, ivith a cusp on each 

 side of the expanded root. Third tooth, counting from the middle, smaller than those beside it. Distance between 

 the pectoral fins and the tip of the snout about *lr, {80 — 83 %) of that between the first dorsal fin and the same 

 point. Coloration above slaty-grag, underneath white. 



^'i/n. Porbeagle, BoHLASE, Nat. Hist. Cornwall (1768), p. 265, 

 tab. 20, fig. 4. Haae-Brand, SteAm, Soiidm. Beskr., part. I, 

 p. 281. Touille-Boeuf on Loutre de mer, DuH., 7V. Peclies, 

 part. II, sect. IX, tab. XX, fig. 4. Beaumaris Shark, Penn., 

 Brit. Zool., ed. 177(3, vol. Ill, p. 104, tab. XVII. Le 

 Nez, Brousson., Mem. Acad. Sc. Paris 1780 (ed. 1784), p. 

 ()G8. Haabrnnd, Ascan.. Icofi. Rer. Nat., tab. XXXI. 

 Squalus glauciis (Haabrandsunge), Gunner., N. Vid. Selsk. Skr., 

 Trondhj., v.il. ly (Kblivn, 1768), p. 1 (nom. erron.); 

 Strom (Haama-r), N. Saml. N. Vid. Selsl<. Skr. Trondhj., 

 vol. II (Kbbvii 1788), p. 3.35, cum tab.; Retz., Fna Suec. 

 Lin., p. 307. 



° Subgenus Lnnina. 

 ' „ Oxyrhina. 



' Caralt. Ale. Nnor. (Jen., Spec, p. 11. 

 '' Riyn. Anim., ed. 1, tom. II, p. 126. 



' According to Malm tlils Icngtli, "measured along the 

 of the bead. 



Sijualtis coriiubicus, Gmel., Si/st. Nat. Lin., ed. XIII, toni. I, 

 p. 1497; Cuv. (subg. Lamna), Regn. Anim., ed. 1, tom. II, 

 p. 127; Nii.ss. iS(pialus), Prodr. Ichtli. Scand., p. 116; 

 Id., Observ. Ichthyol.. p. 13 (Di.sp. Lund, 1835); Yabr.. 

 Brit. Fish., ed. 1, vol. II, p. 384; Bonap. (Lamna), Iconngr. 

 Fna Ital.. Fesci, tab. 134, fig. 2; Sundev., v. Wr. iSijualiis), 

 Skand. Fisk., ed. 1, p. 135, tab. 30; Mull., Hle (Lamna), 

 Plagiost.. p. 67; Gray (hums), Cat. Vlwndropt. Fish. 

 Brit. Mtis., p. 58; Kr. (Lamna). Damn. Fisk., vol. Ill, 

 p. 852; NiLss., Skand. Fna, Fisk., p. 718; DUm., Hist. 

 Nat. Poiss. (su. a Bofk.), tom. I, p. 405; Gthr, Cat. 

 Brit, ^fus., Fish., vol. VIII, p. 389; v. Ben., Poiss. Belg., 



surface" (not. 



straight line), may amount to - . of that 



