N0.1318. BIRDS OF NORTHWEST SUMATRA— RICHMOND. 513 



Family HIRUNDINID^. 



HIRUNDO GUTTURALIS Scopoli. 



Hirundo {guituralis) Scopoli, Del. Flor. Faun. Insubr, 11, 1786, p. 96 (Antique, 

 western Panay, Philippines) . 



Two specimens, from Simalur, where it was " common. " It was also 

 noted as "common" on Tuangku. 



Family CAMPEPHAGID^. 



GRAUCALUS BABIENSIS, new species. 



7^7^.^— Adult female, No. 179220 U.S.N.M.; Pulo Babi, west coas^ 

 of Smnatra, January 13, 1902; Dr. W. L. Abbott. Head, back, scapu- 

 lars, rump, and upper tail -coverts gray (No. 7 of Ridgway's Nomencla- 

 ture), the feathers of the rump and upper tail-coverts indistinctly 

 edged with grayish white; underparts gray, like the back, but slightly 

 paler, becoming still lighter on the abdomen, which is unbarred; thighs 

 gray, like the back; under tail-coverts grayish white, with obscure 

 grayish bars; under wing-coverts white, with blackish bars; axillaries 

 pale gray, with dusky grajnsh bars; wings black, the lesser, middle, 

 and greater coverts and outer webs of tertiaries, secondaries, and of 

 primar}^ coverts gray like the back; inner primaries washed on edge 

 of outer webs with the same color; under surface of wings pale gray, 

 with a whitish line on edge of inner webs of inner primaries. Tail 

 black, the middle pair of feathers with a wash of dark gray, the outer- 

 most pair with grayish tips. 



Length, 305; wing, 168; tail, 117.5; tarsus, 29; exposed culmen, 28 

 (bill, from gape, 41); width of bill at base, 20 mm. " Iris pale yellow; 

 bill and feet black." 



A second female measures: Length, 318; wing, 170; tail, 123 mm. 

 This is a large bird, like G. Txannegieteri., but the lower breast and 

 abdomen are entirely unbarred; there are no l)lack bars on the upper 

 tail-coverts, and the iris is pale yellow instead of white. "Common. 

 Larger and differently colored from that of Simalur." 



GRAUCALUS SIMALURENSIS, new species. 



%?<?.— Adult male. No. 179215, U.S.N. M.; Simalur Island, west 

 coast of Sumatra, November 19, 1901; Dr. W. L. Abbott. 



This species is very like the female -of G. hahiensis (the shade of 

 gray on the upper and lower surfaces is exactly the same as in 

 that species), but smaller; the under tail-coverts and axillaries are 

 unbarred, and there are onl}^ a few obscure grayish bars on the under 

 wing-coverts. 



Length, 299; wing, 166; tail, 121; tarsus, 26; exposed culmen, 26 

 (bill, from gape, 39.5); width of bill, at base, 20 mm. " Iris pale 

 greenish white; bill and feet black." 



