Order PBOCELLARIIFOEMES 
No. 83. 
Family PROCELLABIIDM. 
PUFFINUS ASSIMILIS TUNNEYI. 
WESTRALIAN ALLIED PETKEL, 
(Plate 73.)* 
PuTFiNUS ASSIMILIS TXJNNEYi, subsp. n. ; West Australia ; T^pe no. 3776 in my collection. 
Puffinus nugax ? Campbell, Rep. Austr. Assoc. Adv. Science, 1890, p. 495. 
Puffinus assimilis Hall, Ibis, 1902, p. 206. 
Distribution. West Austraban seas. 
Adult male. General colour above bluish-black, including the head, back, wings and tail, 
the feathers having white or dusky bases ; entire under-surface white, including the 
under wing-coverts and under tail-coverts ; axiUaries white, with ash-brown subterminal 
spots to some of the feathers ; maxilla black, mandible blue ; iris dark brown, feet 
blue, webs yellow (J. T. Tunney). Total length 304 mm. ; culmen (exp.) 26, wing 
180, tail 68, tarsus 37. 
Adult female. Similar to the adult male. Total length 294 mm. ; culmen (exp.) 25, wing 
175, tail 66, tarsus 36. 
Nest. Usually at the end of a burrow, the length of which varies from one to three feet ; 
sometimes under a ledge. 
Egg. Clutch one ; surface smooth, pure white ; axis 48-51 mm., diameter 34-37. 
Breeding-season. July (eggs) (HaU). 
The type male figured and described was collected on Boxer Island, ofi 
Esperance Bay in West Australia, by Mr. J. T. Tunney on June 4th, 1906. 
They were caught in pairs in their burrows during the day, and appeared 
to be preparing them for nesting. The female described is the mate of the 
above male. 
I have no notes on the life-history of this bird. 
* The Plate is lettered Pufflnua assimilis. 
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