LEONARDINA. oot 
518. MACRONOUS KETTLEWELLI Guillemard. 
KETTLEWELL’S TIT BABBLER, 
Macronus kettlewelli GuILrtEMARD. Proc. Zool. Soc. (1885), 262, pl. 18, fig. 
2; SHarpe, Hand-List (1903), 4, 54; McGrecor and WORCESTER, Hand- 
List (1906), 82. 
Bongao (Everett); Sulu (@uwillemard, Bourns & Worcester); Tawi Tawi 
(Everett, Bourns & Worcester). 
Adult.—Differs from the other Philippine species in having the upper 
parts nearly uniform brown; shafts whitish; forehead blackish with 
narrow white shaft-lines ; tail and upper tail-coverts pale chestnut ; under 
parts nearly uniform pale fawn; sides of throat and body faintly lined 
with white: webs of the long dorsal feathers partly white next to the 
white shafts. Length, about 140; wing, 63; tail, 70; bill, 15; tarsus, 
24,* 
“Rare in Sulu, very common in Tawi Tawi. Found in the forest 
working in tangled herbage, like the other Philippine members of the 
genus. Fifteen males average: Length, 150; wing, 64; tail, 61; culmen, 
18.5; tarsus, 23; middle toe with claw, 22. Eight females, length, 155; 
wing, 62; tail, 59; culmen, 18; tarsus, 23; middle toe with claw, 21. 
Iris green; legs and feet light brown, washed with yellow; nails light 
brown ; upper mandible black, lower gray.” (Bourns and Worcester MS.) 
Genus LEONARDINA Mearns, 1905. 
“Bill somewhat depressed, broader than high at base, higher than 
broad at anterior border of nostrils, equal in height and breadth at 
posterior edge of nostrils; culmen strongly ridged, curved from base; 
maxilla with a subterminal notch; nostrils apparently elongate-oval ; 
distance between anterior angle of nostril and tip of bill equal to the 
length of the hind toe without claw; rictal bristles strongly developed : 
length of skull equal to that of tarsus; length of tarsus contained two and 
one-third times in that of wing; tarsus booted; hind toe with claw less 
* The original description of Macronous kettlewelli follows: ““Brunneus; dorsi 
plumis filiformibus, elongatis, versus basin nigricantibus; rachide, et partibus 
plume rachidi adjacentibus, albidis; alis fulvescenti-brunneis, exterius pallidi- 
oribus; supracaudalibus caudaque pallide castaneis; pileo dorso concolori, rachidi- 
bus plumarum albidis; fronte nigricante, magis distincte striata; superciliis, loris 
et regione parotica nigricantibus, albo lineatis; genis et corpore toto subtus pallide 
ecervinis; hypochondriis brunnescentibus; gula summa et abdomine medio albican- 
tibus; gutture et corporis lateribus vix albido lineatis; subalaribus pectori con- 
coloribus; iride smaragdinea; rostro et pedibus brunneis. Long. tot. cirea 0.140 
m; al. 0.063 m; caud. 0.070 m ; rostr. 0.015 m; tars. 0.024 m.” (Guitllemard.) 
