14 



Records of thi-: S.A. Museum 



(JaleorhijiKs (lustralis Hntt., Iiulcx Fauiuir X.Z.. lfK)4, ]). 7)4. 



I'ig. 12. GaJcu.s dutiiniUs. 



A very common and ])rolifi(' s]i(M'ies, as many as fii'ly living' young being 

 lu'odiieed, whieli accompany the motlicr foi- some time after hii'lii. 



Family MUSTELIDAE. 



MUSTELUS Linck, 1790 (mnstehis). 



MUSTELUS ANTARCTICUS Giinther (Gummy or Sweef William). 



Mustelus antarcticiis Giintli., Cat Fish. Brit. Mus., viii, 1870, p. 387; Parker, 

 T.N.Z. Inst., xv, 1883, p. 219, pi. xxx (embryos) ; McCoy, Prod. Zool. Vict., 

 dec. ix, 1884, pi. Ixxxvii; McCull., Rec. Aust. Mus., vii, 1909, p. 315, pi. xe, 

 fig. 3. 



(.'/'lens antarcticus Waite, Rec. Aust. Mus., iv, 1902, p. 17."), fig. 19 (foetus and 

 shell-gland). 



Fig. 13. Mustelus (Uiidrriicus. 



The young are produced alive, each in a separate compartment of the uterus, 

 l)u1 there is no vascular connection between tlie fcetus and the mother, unlike the 

 rc]uarkable condition occurring in one of the northern species of the genus. 



Family SPHYRNIDAE. 

 SPHYRNA Rafinesque, 1810 (zygaena). 

 SPHYRNA ZYGAENA Linnaeus (Hammer-headed Shark). 

 Squalus zygaena Linn., Syst. Nat. (ed. x), 1758, p. 234. 



