Birds of Celebes: Cacatuidae. 
129 
Mai. Ai-chip. 1878, 275; (10) Meyer, Ibis 1879, 44, 145; (11) Krukenberg, Vergl. 
physiol. Studieii 18S2, U, 2. Abth., 29, 33, 35; (^I) Meyer, Vogelskelette 1881 — 82, 
t. XVni; (13) W. Bias., Ztschr. ges. Orn. 1886, 195; (14) W. Marsh., Z. Vortr. 
Die Papag. 1889, 31; (15) Salvad., Oat. B. XX, 1891, 121; (15) Biittik., Z. Erg. 
Weber’s Eeise Ost-Ind. 1893, III, 273; (17) M. & AVg., Abh. Mus. Drcsd. 1895, 
Nr. 8, p. 5; (18) iid., ib. 1896, Nr. 1, p. 7; (19) Hartert, Nov. Zool. 1897, 164. 
d. Plyctolophus sulphureus (I) Lear, BI Parrots 1832, pi. 4; (II) Selby, Nat. Libr., Parrots 
1836, 129, pi. 14; (3) Nitzsch, Pterylogr. 1840, 146; id., Engl. Ed. 1867, 102. 
e. Psittacus sulphureus minor vel moluccensis (I) Bourjot, Perr. 1837—38, pi. 80. 
/: Plictolophus sulfureus (1) Einsch, Papag. I, 1867, 296—300, pt., 11, 1868, 942; (II) 
Rchnw., Vogelbilder, 1878 — 83, t. lY, f. 1. 
g. Plissolophus cristatus (1) Bclinw. (nec. L.), J. f. O. 1881, 29 (Oonsp. Psitt. 1881, 29). 
“Katella” or “Catala”, Gorontido Disk, Rosenb. d 1, 9. 
“Gatalla” and “Cacatua puti” (malay), Meyer 10. 
For farther synonymy and references see Salvad. 15. 
Figures and descriptions. Lear d T, Selby d II-, Bourjot e 7; Reichenow f II\ Meyer 
cXII (skeleton); S. Muller a 2; Schlegel c2; Garrod c 4, c 5 (anat.); Einsch 
f 1] Salvadori e 15. 
Adult o’. White, with a hght wash of sulphur-yelloAv, especially strong on the under surface, 
\inder side of wings and of tail; crest (85 mm), ear-coverts and basal part of 
the remaining feathers of head deep sulphur-y(dlow. [The mantle and wings 
above of this and of 8 other specimens are nearly white without any yellow wash to 
speak of, but tliis hue seems to fade through exposure, as it may be found at the bases of 
the feathers and on the lower back and upper tail-coverts under cover of the wings. — 
Kwandang, North coast of Celebes, — Nr. 3536). Iris of adult red (Meyer 10). 
Female. Lilie the male, but with a smaller bill. 
Young. The yellow of the plumage much less intense than in the old ones; iris dark — 
either black or brown (Meyer 10). 
According to Einsch the nestlings of the white Cockatoos are clothed in long 
white down (Pai^ag. I, 272 j; the same author mentions a young one of the Elores 
species, wliich is very closely related to the Celebesian 
Measurements. 
a. (Nr. 3536) cf Kwandang, N. Cel 
b. (Nr. 3535) Kwandang, N. Cel 
c. (Nr. 3537) Q Paguatt, Tomini Bay 
d. (C 1331) g Paguatt, Tomini Bay 
e. (C 1329) § Paguatt, Tomini Bay 
f. ^C 1325) Paguatt, Tomini Bay 
y. (C 1330) 9 Kwandang, N. Cel 
h. (C 6590) ? Gorontalo Distr 
i. (Nr. 3538) ? Gorontalo Distr 
j. (Sarasin Coll.) O Buol, N. Cel., 15. Vni. 94 . . 
k. (Sarasin Coll.) (;f Maroiieng, Gulf of Mandar, 18. VUE. 95 
one. 
in which the yellow 
(1. c. 
297)1 
)• 
Wing 
1 Tail 
\ 
Tarsus 
1 Oulmen 
from cere 
236 
110 
19.5 
39 
235 
116 
20 
40 
232 
114 
19 
35 
235 
116 
— 
34.5 
230 
114 
— 
35.2 
243 
122 
— 
37 
221 
110 
— 
35 
230 
110 
— 
38.5 
243 
113 ^ 
— 
40.5 
237 
115 
— 
34 
234 
110 
— 
39 
i) The entire series of this genus in the Bi-itish Museum are, without exception, marked by Count Sal- 
vadori as adult! 
ileyer & Wiglesworth, Birds of Celebes {Oct. ICth, 1897). 
17 
