BROWN AND WHITE PETREL. 25 



Adult. General colour of the upper-surface including the crown of the head, 

 back, wings, and tail, sooty-black with whitish philo tips to the feathers on the hinder 

 crown, sides of face and nape ; the margins of the greater upper wing-coverts rather 

 paler ; inner webs of flight-quills much paler, especially on the basal portion ; sides 

 of face and sides of neck paler than the upper-surface and inclining to smoke-brown ; 

 the feathers in front of the eye greyish-white with black hair-like tips ; throat, 

 breast, abdomen, under tail-coverts, and under wing-coverts white ; sides of breast, 

 lower flanks and thighs dark dusky -brown ; axillaries and inner under wing-coverts 

 pale dusky-brown with dark shaft-lines to the feathers and whitish margins at the 

 tips ; under-surface of flight-quills greyish-brown ; lower aspect of tail similar but 

 the long white under tail-coverts reaching nearly to the tip of the tail. Bill horn ; 

 eyes black ; feet cream ; inner toe and inner side of tarsus brown. Total length 

 338 mm. ; culmen 35, wing 206, tail 69, tarsus 40. (The sexes are alike.) 



Nestling. Wholly brownish -black with a long thin weak bill of the true Puffinoid 

 nature. 



Nest. At the end of a burrow, which is about two feet long, and about 4.5 

 inches in diameter. The chamber is 1 foot 6 inches long, and about 1 foot 8 inches 

 high ; in this there is a deepening with a few leaves. 



Egg. Clutch, one ; pure white ; axis 53 mm., diameter 39. 



Distribution and forms. East coast of Australia and New Zealand with the 

 outlying islands. Four forms have been named : It. r. reinholdi (Mathews) from 

 New Zealand (exact locality unknown) ; R. r. huttoni (Mathews) with a longer bill 

 and wing, culmen 38, wing 226, against culmen 35 mm., wing 213 mm. ; and more 

 brown on sides of chest, the sides of the body smoky-brown and inner wing white 

 feathers with darker shaft-lines, from Snares Islands, south of New Zealand ; R. r. 

 byroni Mathews from New South Wales on account of its darker upper coloration 

 and smaller size ; wing 191 mm. ; and R. r. melanotis Mathews from the Kaipara 

 Beach, North Island, New Zealand, in its blackish upper coloration and smaller 

 size ; wing 189 mm., tail 60, tarsus 39, culmen 31 ; this last named may prove 

 synonymous with the first named. 



MEMO. We have concluded the following refers to this species, though the 

 locality has not yet been recorded. 



Puffinus Iherminieri. BROWN AND WHITE PETREL. 



[Puffinus Iherminieri Lesson, Revue Zool., 1839, p. 102 : West Indies. Extra-limital.] 

 Not figured anywhere. 



Puffinus Iherminieri nugax Mathews, Birds Austr., Vol. II., pt. 1, p. 72, May 30th, 1912, ex 

 Solander MS. : off Townsville, Queensland. 

 Not Procellaria nugax Bonaparte. 



DISTRIBUTION. " Off Townsville, Queensland." No specimen preserved. 



Adult. Above sooty, under-surface snow-white, the bill wholly lead-black, 

 the nares a fourth of its length. Very like Nectris munda, but that the body is much 

 less, the bill longer and narrower, etc. ; eyes black, iris grey. Length 1 foot ; 

 expanse of wings 2 feet ; bill If inches. 



Genus THYELLODROMA. 



Thyellodroma Stejneger, Proc. U.S. Nat. Mus., Vol. XL, p. 93, Nov. 8th, 1888. Type (by 

 original designation) : Puffinus sphenurus Gould = Puffinus chlororhynchus Lesson. 

 Zalias Heine und Reichenow, Nomencl. Mus. Hein., p. 362, (pref. Sept.) 1890. Type (by 

 subsequent designation, Mathews, List Birds Austr., p. 33, Dec. 1913) : P. chlororhynchus 

 Lesson. 



? Microzalias Mathews and Iredale, Ibis, 1915, p. 597, July 2nd. Type (by original designa- 

 tion) : Puffinus nativitatis Streets. 



