REPORT ON THE DEEP-SEA FISHES. 39 



Trichiurus, L. 

 Trichiurus lepturus, L. 



Trichiurus lepturus, Giinth., Report on the Shore Fishes, Zool. Chall. Exp., part vi. p. 6G. 



The Silvery Hairtail is a common surface-fish in the warmer parts of the Atlantic, the 

 Indian Archipelago, in the Chinese and Japanese Seas, and in New Zealand. The 

 Challenger Expedition obtained it 05" Inosima in 345 fathoms. 



Euoxymetopon, Poey. 



Body much elongate, band-shaped ; head with the supraocular portion compressed 

 into a trenchant edge, and the upper profile abruptly descending towards the end of the 

 snout ; eye of moderate size, much below the upper profile. Cleft of the mouth wide ; 

 teeth lanceolate, in single rows, with larger ones in front ; a series of small teeth on the 

 palatines. Fins as in Lepidoinis. 



Euoxymetopon tseniatus. 



Euoxymetopon tsmiatus, Poey, Proc. Acad. Nat. Sci. Philad., 1863, p. 228; An. Soc. Espan. 



Hist. Nat., 1873, \\ 77, lam. 5. 



B. 7. D. 87. A. .c-f 19. P. 12. 



The ventral fins are reduced to a pair of flat scales ; the dorsal commences above the 

 eye, the diameter of which is about one-sixth of the length of the head. Body ^\•ith reddish 

 longitudinal bands. 



Of this fish only one specimen * is known to exist in collections, which was obtained 

 by Professor Poey at Havannah, and is five feet long. The reference of this fish to the 

 bathybial fauna is merely inferential at present, as nothing is known of the particular 

 circumstances under which the typical specimen was captured. But it is most improbable 

 that, if it came as frequently to the surface as Lepidopus caudatus, it should have escaped 

 so long the observation of an indefatigable collector like Professor Poey. 



Euoxymetojwn j^oeiji , n. sp. (PI. XLIII.). 



A fish which I have received from the Mauritius, whilst this Report is passing through 

 the press, agrees in all the principal characteristics so completely with the Cuban fish, that 



1 After having exaiuineil the original account given by Hoy in Trans. Linn. Soc. Land., vol. xi., 1815, p. 210, of 

 two supposed specimens of Trichiurus lepturus from llie Moray Firth, I concur with the view expressed by Fleming 

 {Ann. and Mtiy. Nat. Hist., vol. iv., 1831, p. 219) that the specimen captured in 1810 was a TrachyjHerns, and with 

 Mr. F. Day (Fish, of Great Britain and Ireland, p. 222), who refers the second which was thrown ashore in 1812, to a 

 species of Regalecus. 



