140 
Birds of Celebes: Psittaddae. 
GENUS TANYGNATHUS Wagl. 
This genus is always distinguishable from Prioniturus by its strongly gradu- 
ated, almost wedge-shaped tail, as well as by its larger size and larger, broader 
bill. The colour is chiefly yellowish parrot-green, relieved on some of the 
upper parts by blue, occasionally by yellow and black, but no red, except on the 
bill, where it is found as a rule, though sometimes in the male alone. Wing below 
dusky, more shiny where it rests upon the body. There are four well distin- 
guished species, of which some seven additional local forms have been described. 
Range: from the Philippines to Celebes and Sumba, through the Moluccas as 
far as N. W. New Guinea and the Tenimber Islands. 
* 45. TANYGNATHUS MUELLERI (Miill. SchL). 
Celebesian Green Parrot. 
This Parrot varies geographically in size. In Sangi, following a general 
rule there, the birds are very large, always exceeding the dimensions of those 
of the mainland of Celebes. In Talaut they are somewhat smaller, small indi- 
viduals from there being occasionally, though very rarely, equalled or exceeded 
in size by large ones of Celebes, while large individuals are similar to Sangi 
birds. We prefer to group and label the forms as follows: 
1. The typical Tanygnathus muelleri. 
a. ? Psittacus sumatranus (1) Raffl., Tr. Z. S. ]822, XIII, 281. 
b. Psittaeus muelleri Temm. in Mus. Leyd.; {!) M. et 8., Verb. Natuurk. Comm. 1839 — 44, 
108, 182 (Buton); S. Miill., Beiz. Ind. Archip. 1858,11, 69,70; |^2jE,uss, Fremdl. 
Stubenvog. 1881, 452. 
c. Tanygnathus sumatranus (Ij Souance, Icon. Perr. 1857, pi. 46; (2) Briiggem., Abb. 
Ver. Bremen 1876, V, 38. 
d. Tanygnathus muelleri (Ij Bp., Consp. Av. 1850, I, 5; (II) Souance, Icon. Perr. 1857, 
pi. 45; (S) Wall., P. Z. S. 1864, 286, 294; (4) Wald., Tr. Z. S. 1872, Vm, 31 
(pt. excl. Samar, Sangij; (5) Garrod, P. Z. S. 1874, 587; (Gj Salvad., Ann. 
Mu.s. Civ. Gen. 1875, VII, 644; (7j Meyer, Ibis 1879, 47, 145; (8) Salvad., Orn. 
Pap. 1880, I, 135; (9) Krukenb., Vcrgl. pbysiob Stiuhen 1882, 213; (10) Rcbnw., 
J. f. 0. 1881, 245; Consp. Psitt. 1881, 133; |''X7; id., Vogelb. 1878 — 83, t. XXVII, 
f. 9; (XII) Meyer, Vogelskel. 1883, t. XLY; (13) Guillem., P. Z. S. 1885, 542; 
(14) W. Bias., Ztscbr. ges. Orn. 1885, 209; (15) id., Ornis, 1888, IV, 556; (IG) 
Hickson, Nat. in N. Celebes 1889, 59, 86 (Talisse); (17) Salvad., Cat. B. XX, 
1891, 430; (18) Biittik., Zool. Erg. Weber’s Reise Ost-Iud. 1893, III, 273; (19) 
M. & Wg., Abb. Mus. Dresden 1895, Nr. 8, p. 5; (20) iid., ib. 1896, Nr. 2, j:). 8; 
(21) Hartert, Nov. Zool. 1896, 160. 
e. ? Psittaeus leucorhynchus (1) Reinw., Reiz. Ind. Arebip. in 1821, 1858, 592 (Tondano). 
f. Tanygnathus albirostris (1) Wall., P. Z. S. 1862, 336 (Celebes, Sula); 1864, 286, 294; 
(2) Sclat., P. Z. S. 1868, 262; 1871, 494; (3) Rebnw., J. f. O. 1881, 246; Consp. 
Psitt. 1881, 131; (4) Dallwitz, J. f. O. 1885, 103; (5) Guillem., P. Z. S. 1885,543. 
