Birds of Celebes; Ibidae. 
803 
simple hypotarsus, syrinx without muscles, intestinal convolutions, form and size 
of the spina externa, U-shaped furcula, without apophyses (Gadow, in Bronn’s 
Kl. & Ordn. VI, Ahth. 4, Vog. 1893, pt. 2, p. 141). 
FAMILY IBIDAE. 
The Ibises bear much resemblance to the Curlews, though Gadow con- 
siders there is little in common between the two forms but the arched bill, the 
tongue, and the schizorhinity. It should be added also that a corresponding 
summer and winter change of plumage is passed through by the Ibis (at least 
Plegadis) and certain Limicolae, such as Limosa and some Curlews. Some of 
the most striking differences between the two forms are the nostrils situated 
high, almost horizontally, on the maxilla of the Ibises, the nasal groove running 
down to the tip of the bill or nearly, more or less of the face usually bare, 
and the long hallux. 
The long decurved bill is the best means of distinction between the Ibises 
and the Storks and Spoonbills. 
GENUS PLEGADIS Kaup. 
Culmen about 3 times as long as the cranium, arched, nostrils linear, situ- 
ated high and nearly horizontally at the sides of the culmen in its basal fourth, 
nasal groove running to the tip of the bill; loral and periocular region naked; 
tarsus long, anteriorly transversely scutellated; toes long, middle toe and claw 
a little shorter than the tarsus, hallux with claw about half the length of the 
middle toe and claw; rectrices 12, about as long as the tarsus; wing rather 
large, the shorter secondaries about Vs its length. Summer and winter plumage 
very different. Migratory. 
flange: most of the temperate and tropical regions of the World. 
343. PLEGADIS FALOINELLUS (L.). 
Glossy Ibis. 
a. Tantalus falcinellus (1) Linn., S. N. 1766, 1, 241 ; (2) Bosenb., Malay. Archip. 1878, 278. 
h. Falcinellus igneus (1) Gray, List Gen. B. 1841, 87; (II) Gould, B. Austr. 1848, VI, 
pi. 47; (3) Wald., Tr. Z. S. 1872, VTH, 101; (4) Salvad., Oat. Ucc. Borneo 1874, 361 ; 
(5) Elliot, P. Z. S. 1877, 503; (6) Vorderm., K T. Ned. Ind. 1884, XLIV, 253; 
( 7 ) Bennett, Pr. L. Soc. N. A W. 1887, 1059; ( 8 ) Everett, J. Str. Br. B. A. S. 
1889, 191. 
c. Falcinellus peregrinus (1) Bp., Consp. 1855, 159; (2) Joest, Holontalo 1883, 105. 
d. Ibis falcinellus (1) Schl., Mus. P.-B., Ibis, 1863, 2; (2) Finsch, Neu-Guinea 1865, 182; 
(3) Finsch & Hartl., Vog. O.-Afr. 1870, 730; (4) Heugl, Vog. N.-O.-Afr. 1871, 
1132; (5) Hartl., Vog. Madag. 1877, 316; (6) David & Oust., Ois. Chine 1877, 
