Order PROCELL ARIIFORMES 
No. 87. 
Family PROCELLARIIDM 
PUFFINUS PACIFICUS CHLORORHYNCHUS. 
WESTERN WEDGE-TAILED PETREL. 
PuFFiNUS CHLORORHYNCHUS Lessoii, Traite d’Omith., p. 613, 1831 ; Shark’s Bay, West 
Australia. 
Puffinus chlororhynchus Lesson, Traite d’Orn., p. 613, 1831 ; Pucheran, Revue Zool., 1850^ 
p. 633 ; Salvin, Ibis, 1888, p. 352 ; id.. Cat. Birds Brit. Mus., Vol. XXV., p. 372, 
1896 (pars) ; Hall, Key Birds Austr., p. 92, 1899 (pars) ; Campbell, Nests and Eggs 
Austr. Birds, p. 876, 1901 ; Hall, Ibis, 1902, p. 204 ; Mathews, Handl. Birds Austral., 
p. 16, 1908 (pars) ; Godman, Monogr. Petrels, p. 84, 1908 (pars) ; Littler, Handb. 
Birds Tasm., p. 163, 1910. 
Puifinus sphenurus Gould, Ann. Mag. Nat. Hist., Vol. XIII., p. 365, 1844 ; id., Birds 
Austr., Vol. VII., PI. 58, 1848. 
Thidlus cMororhynchus Bonaparte, Comptes Rendus Sci., Paris, Vol. XLII., p. 769, 1856. 
TTiiellus sphenurus id., Consp. Gen. Av., Vol. II., p. 201, 1857 ; Coues, Proc. Acad. Nat. Sci.^ 
Philad. 1864, pp. 122, 142 ; Gould, Handb. Birds Austr., Vol. II., p. 466, 1865. 
Thidlus chlororhynchus Bonaparte, Consp. Gen. Av., Vol. II., p. 201, 1857 ; Coues, Proc. 
Acad. Nat. Sci. Philad. 1864, pp. 123, 142. 
Procdlaria sphenura Schlegel, Mus. Pays-Bas, Vol. VI., Procell., p. 25, 1863. 
Procdlaria chlororhynchus id., ib. 
Zalias chlororhy^ichus Heine, Nomencl. Mus. Hein., p. 362, 1890. 
Distribution. West Australia (breeding). 
Adult male. Differs from P. c. royanus in its generally lighter colour, especially on tho • 
under-surface, and probably also in the coloration of the bill. Measurements about 
the same. 
Adult female. No differences have been recorded. 
Immature. Appear to be sMghtly lighter. 
Nest. At the end of a long burrow usually, sometimes under a cliff or small ledge. 
Egg. Clutch one ; pure white, minutely pitted ; two eggs collected on Houtmann’s 
Abrolhos measure — axis 59-60 mm., diameter 41-42. 
Breeding-season. November-December (Abrolhos Island, West Australia). 
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