416 Messrs. G. M. Matlicws and Tom Iredale : 



has been named, some twice over. These can only be con- 

 sidered subspecies and seem very ill-defined at that, as two or 

 even three of the '^ species ^^ have been recorded from ihe same 

 island ; they are generally named from single specimens in 

 poor plumage, and as no long series has yet been collected, 

 their determination is quite perplexing. Two species have 

 been admitted, H. carunculatus (Gmelin) and H. campbelU 

 (Filliol), but there may be only one : the carunculated forms 

 may intergrade with those without caruncles. We have 

 omitted Microcarbo melanoleucus melanuleucus (Vieillot), as 

 we consider the specimens referred to that form to l)e simply 

 M. m. brevirustris Gould, which is only subspecifically 

 separable : these birds are very sedentary and are not 

 wanderers to any extent. 



Family PLOTID.E. 

 Genus PLOTUS. 

 P lotus Linne, Syst. Nat. 12th ed. 1766, p. 218. 

 Type (by monotypy) : P. anldnya Linne. 



Plotus novsehoUandise novsehollandiae Gould. South Aus- 

 tralian Darter. 

 Plotus novahollandice Gould, Proc. Zool. Soc. Loud. 1817, 

 p. 31 : South coasts of Australia. 



Synonym : — 



Plutus 7tovcehollamlice Buller, Suppl. vol. ii. p. 46. 



Ilange : — Nevr Zealand (accidental : one occurrence near 

 Hokitika, South Island) ; extralimital. 



Family SULID^E, 



Genus SULA. 



Sula Scopoli, Introd. Hist. Nat. 1777, p. 474. 

 Type (by tautonymy) : Sula piscato?' (Linne) . 



Sula bassana serrator Gray. New Zealand Gannet. 



Sula serrator Gray, Yoy, 'Erebus'* and 'Terior,' 13irds, 

 1845, p. 19 : New Zealand. 



