1. rilALACHOCOUAX. 385 



20. Phalacrocorax onslowi. 



Giac'iilus caninculatiis, Hiittan (tin- Gmel.), Il,i^, 1872, p. 249 

 [(.hiithaiii Is.] ; Travels, Tr. i\'. Zeal. Inst. v. p. 221 (1873)'rpitt I.]. 



Phalacrocorax caninculatus, IluUon {nee Gmel.), Tr. N. Zeal InM 

 V. p. 224 (1873); Buller, B. N. Zeal. p. 332, pi. left-hand 

 lif>-. (18/3) [necsyn.l ; id. Tr. N. Zeal. Imt. ix. p. 338, pi. xv. fi''. 1 

 (1S77) [Chatham Is.] ; id. Man. B. N. Zeal. p. 93, pi. xviv fi^ I 

 (1882) [descrip. & pi. only]. i ' i- 



riialacrocorax cirrhatus, Buller {nee Gmel), Man.B. N. Zeal b 93 

 (1SS2) [nee local.]. ^' 



rhalai-rocorax onslowi, Forbes, Ibis, 1893, p. 533 [Chatham I.'^.] ■ 

 Buller, Tr. N. Zeal. In.st.xwn. p. 129 (189o). ' 



riiahicrocorax rothschildi, Forbes, Ibis, 1893, pp. 535-537 540 



[Cliatham Is.]. ' 



i'halacrocorax imperialis, B idler (nee King), B N Zeal -^ud ed ii 

 p. 153, pi. xxxviii. fig. 2 (1888J [Chatham Is.]. 



Adult in hreedhui-plumage (March). Differs from P. caruncidatus 

 m ]ts much smaller size and in possessing a well-developed 

 crest ; back of the head and neck glossed with purplish or steel-blue ; 

 lower back and rump similarly coloured. JYasal wattles well- 

 developed. The alar bar is always, and the dorsal patch generally 

 well-developed, and in the most adult examples some at least of 

 the outer scapulars are white. Tail composed of 12 feathers. 

 " Caruncles at base of bill yellow ; skin round eye blue, between 

 e}^e and mouth orange ; legs scarlet" (Buller). Total leugth about 

 25 inches, culmen from feathers on forehead to tip 2-15, depth to 

 cutting-edge at nostril 0-35, wing 10--1, tail 4-5, tarsus 2-55, outer- 

 most toe and claw 3-9. 



Adult in non-breeding plumage. Similar to the above, but without 

 a crest. 



Immature. Differs from the adult in having the dark parts of the 

 plumngo brown, darkest on the back, scapulars, and rump, which are 

 slightly glossed with green, and palest on the wing-coverts and 

 outer scapulars, which are edged with white. [^Mus. Rothschild.] 



Hah. Chatham Islands. 



a, b. Ad. sk. Chatham Islands. Dr. H.O. Forbes [C.]. 



(Types of P. roth- 

 schildi, Forbes.) 



21. Phalacrocorax stewarti. (Plate V. a.) 



? Tiifted Shag, Lath. Gen. Sijn. iii. pt. ii. p. 606 ( 785) [Queen 

 Charlotte Sound, New Zealand] ; id. Gen. Hist. B. x. p. 431 (1824). 



. Pelecanus cirrhatus, Gmel. S. N. i. pt. ii. p. 576 (1788) [14 tail- 

 feathers *]; Lath. Lid. Orn.il p. 890 (1790) ; Bomiat. Tabl. Enciicl. 

 Meth. i. p. 49 (1790). 



Hydroeorax cirratus, Vieill. X. Diet. d'Hist. Nat. viii. p. 84 (1817). 



Pelecanus cirratus, Dumont in Levraulfs Diet. Set. Nat. x. v. 453 

 (1818). ^ 



* This is doubtless an error. 

 VOL. XXVI. 



