A Refere7ice List of the Birds of New Zealand. 435 



Genus TRAVERSIA. 



Traversia Rotliscliild, Bull. Brit. Orn. Club, vol. iv. 1894, 

 p. X. 



Type (by monotypy) : T. lyalli Rotliscliild. 



Traversia lyalli Rothschild. Stephen^s Island Wren. 



TtYwersia lyalli Rothschild, Bull. Brit. Orn. Club, vol. iv. 

 1894, p. X : Stephen's Island. 



Synonyms : — 



Xenicus insularis Buller, Ibis, 1895, p. 236: Stephen's Island. 

 Traversia instdaris Buller, Suppl. vol. ii. p. 109. 



Range : — Stephen's Island, Cook's Strait. ? Extinct. 



Family HIRUNDINID^. 



Genus HYLOCHELIDON, 



Hylochelidon Gould, Handb. Birds Austr. vol. i. 1865, 

 p. 111. 



Type (by original designation) : H. nigricans (Vieillot). 



Hylochelidon nigricans nigricans (Vieillot). Australian Tree 

 Swallow. 

 Hirundo nigricans Vieillot, Nouv. Diet. Hist. Nat. vol. xiv. 

 1817, p. 523: New South Wales. 



Synonyms : — 



Hirundo pyrrlwiiota Vigors tfc Horsfield, Trans. Linn. Soc. Lond. 



vol. XV. 1826, p. 190 : New South Wales, 

 Collocalia arhorca Gould, Birds Austr. vol. ii. pi. 14, 1848: New 



South Wales. 

 PetvocJielidoii nigricayis Buller, Suppl. vol. ii. p. 113. 



Range: — New Zealand (accidental visitor: few occur- 

 rences) ; extralimital. 



Note : — All the specimens obtained should be re-examined, 

 and it should be decided whether they all belong to the 

 typical subspecies or whether some are referable to H. n. aus^ 

 trails Temmiuck & Schlegel (Fauna Japonica, Aves, 1850, 

 p. 35 : Tasmania), the Tasmanian subspecies. 



