Birds of Celebes; Parridae. 
725 
or in none. The tarsus is naked, often long; the hallux generally absent in the 
Plovers — very small when present, small in the Sandpipers and Coursers, well 
developed and with a very long claw in the Jacanas. They are said to have 
11 primaries, but the first one is concealed and exceedingly minute, if indeed 
it is present in all species; the fifth secondary is wanting; tail-feathers 10 to 
26, usually 12. 
The palate is schizognathous, with a pointed vomer; furcula U-shaped, 
almost always with a small hypocleidium; two carotid arteries; sternum usuaUy 
either with two pairs of processes, or two fenestrae, in its posterior margin, 
sometimes only one pair of processes. 
Most of these birds are great migrants, breeding in the North and wintering 
in southern climates. 
FAMILY PARRIDAE. 
Dr. Gadow remarks (Bronn’s Kl. u. Ordn. VI, Abth. 4, Vog. 1893, II, 205). 
“The differences from the Rails are sufficiently large; especially the general 
structure of the sternum, the flexor tendons of the toes, notwithstanding a similar 
form of foot, shizorhinal nasal processes, basipterygoid processes. On the other 
hand the intestinal convolutions are very like those of the Rails . 
The long toes, especially the long hallux furnished with an enormous, 
slightly recurved claw, easily distinguish them from the other Ltmicolae. 
GENUS HYDRALECTOR Wagl. 
The size of a Turtle-dove, easily recognised by its greatly lengthened claws 
which are adapted to enable the bird to walk over aquatic plants. The hind 
toe with the claw is longer than the anterior ones, the claw being about four 
times the length of the hallux. The tarsus is large, but shorter than the toes, 
naked and transversely scutellated, as is also the lower half of the tibia. On 
the basal half of the maxilla a perpendicular comb, with a transverse flap in 
front of the forehead: wings moderate; rectrices 10, shorter than the tarsus. 
Nest floating, or near the water’s edge; eggs curiously scrawled over with black 
flourishes, etc. A single species. 
312. HYDRALECTOR GALLINAOEUS (Temm.). 
East-Indian Jacana. 
«. Parra gaUinaaea (1) Temm, PI. Ool. Nr. 464 (I828]i 7ee 
V, 90; (3j Kosenb., Malaj. Aiebip. 1878, 279, W Nelirk , J. f. O. 1879, 409, 
(5) Bosenb, Zool. Garten 1881, 167; (S) Joeal HolontJo 1883, 106^ 
Hyaralector gallinacens (t) Wagl., Isis 1832, 280; ^**'*-’ b, ' 
(3) Meyer, Ibis 1879, 141; (4) Salvad., Orn. Pap. 1882, m, .108, (5) W. Bias., 
