296 PROCEEDINGS OF THE NATIONAL MUSEUM. voi,. xxv. 



and under wing-ooverts deep buflf, the latter darker along edge of 

 wing; inner webs of wing feathers with light buffy edges. Wing, 

 7Y.5 mm.; tail, 61; tarsus, 18; cillmen, 14 (bill, from gape, 22). 

 Length, 165 mm. "Iris, dark ])rown; feet, pale brownish fleshly; 

 upper mandible dark horn brown, lower mandible pale fleshy.'' 



There is some variation in a series of eleven specimens; in one the 

 band across the breast is dee]) buff, with almost obsolete darker edges 

 to the feathers; in several examples the under tail-coverts are dull 

 white; some have the top of the head and Ijack of the same shade of 

 brown. In an inmiature specimen the middle and greater wing-coverts 

 and feathers behind the eye have cinnamon spots, narrowly edged 

 with ])lack; the tertiaries are tipped with pale cinnamon; the throat is 

 white, with the feathers indistinctl}" edged with dusk3^ 



This species appears to be most nearly related to Ji. ■pectoralis, from 

 the Malay Peninsula and Sumatra, but differs from it in having no 

 whitish spots on the lores; the under wing-coverts, axillars, and under 

 tail-coverts are not white; the white on the under surface is not so 

 pure, and the upper parts are of a somewhat different shade of 1)rown. 



The genus Ridnomyiax. has not previously been recorded from the 

 Nicobars. 



"Common in Great and Little Nicobar. Keeps close to the ground, 

 on low l)ushes in heavy forest. Has a rather sweet song." 



HYPOTHYMIS AZUREA (Boddaert). 



ifM.sr/cfl^yxf r/swrcrf BoDDAERT, Tabl. PI. P]nl., 1783, p. 41 ("Philippines"). 



Fifteen specimens, from Nankauri, Trinkut, Tillanchong, Kamorta, 

 Great and Car Nico))ar. 



"Conmion \w all the islands, frequenting dense jungle.'" 



HYPOTHYMIS TYTLERI (Beavan). 

 My'mgra ti/tleri Beavan, Ibis, 1867, ]>. 324 (Aiulanians). 



Three specuuens, from Henry Lawrence Island, Little and South 

 Andaman. 



Family TLTRDID^E. 



GEOCICHLA ALBOGULARIS Blyth. 



Geodchla albogularif! Blyth, Joiirn. Asiat. Soc. Bengal, XVI, 1847, p. 146 

 (Nicobars). 



Eight specimens, from Trinkut, Kamorta, and Katchal. Length, 

 from 190.5 to 203 mm. "Iris dark brown; orbital skin olive; bill 

 black, pale leaden beneath, at base; feet pale brownish fleshy; claws 

 pale horn brown. Common in the central group, i. e., Trinkut, Nan- 

 kauri, Kamorta, and Katchal. Frequents the darkest parts of the 

 jungle, keeping close to the ground." 



