18 THE VOYAGE OF H.M.S. CHALLENGER. 



Hawk," at 155 fathoms. The observation which I have made on previous occasions, viz., 

 that the young of many deep-sea fishes live on the surface, or much nearer to it than 

 the adult, seems to be fully borne out by this species. CoUett remarks that during the 

 breeding season individuals are seldom taken at a depth less than 100 fathoms ; the 

 majority probably producing their young Mn far greater depths. The fry rise towards 

 the surface shortly or perhaps immediately after birth, choosing for their haunts the 

 upper strata of the sea, and do not descend to any considerable depth till they have 

 attained a length of about 50 or 60 mm. 



Sehastes vivijxtms. 



Sebnstea vivipams, Kroyer, Nat. Hist. Tidsskr., 1844-45, p. 275 ; and in Gaimard, Voy. Scandin. 

 Zool. Poiss. pi. vi. 

 Strom, Norsk. Vid. Selsk. Skrift., 1881, p. 73; 1884, p. 16. 

 „ „ Lilljeborg, Sveriges Fisk., p. 101. 



„ re(/>ilus, Fries ocli Ekstr., Skand. Fisk., pi. xlix. 



Rather common on the coasts of Scandinavia, at a depth of from 50 to 300 fathoms. 



Sehastes macrochir. 



Sehastes macrochir, Giinth., Report on the Shore Fishes, Zool. ChaU. Exp., part vi. p. 65, 

 pi. xxvii. 



This fish was discovered off Inosima in 365 fathoms, and therefore is to be included 

 among the deep-sea group. For the sake of comparison it was described in the Report 

 on the Shore Fishes. 



Sehastes hexanema. 



Sehastes hexanema, Giinth., Report on the Shore Fishes, Zool. Chall. Exp., part vi. p. 40. 

 Habitat. — Off the Ki Islands, Station 192 ; depth, 140 fathoms. 



Sehastes oculatus, C. V. 



Sehastes oculatus, Giinth., Report on the Shore Fishes, Zool. Chall. Exp., part vi. p. 20. 



Vert, j J. Several .specimens were obtained at Stations 306 and 307, near Magellan 

 Strait, in 147 and 345 fathoms. This species, however, lives at certain times or localities 

 much nearer to the surface, and is not uncommon along the Antarctic coasts of Soutli 

 America. 



' This species is viriparous. 



