68 BULLETIN 159, UNITED STATES NATIONAL MUSEUM 



MIXORNIS RUBICAPILLA EVERETTI Uartert 



Mixornis everetti Hartert, Nov. Zool., vol. 1, no. 2, p. 472, Apr. 16, 1894. (" Bung- 

 uran.") 



Only tw o specimens of this subspecies, which is apparently confined 

 to t he island of Bunguran, were obtained by Doctor Abbott. These are: 



Adult male, U.S.N.M. No. 153956, Bunguran Island, September 

 30, 1893. 



Juvenal, sex unknown, U.S.N.M. No. 174784, Bunguran Island, 

 July 15, 1900. Length in flesh, 133 mm. 



The Juvenal shows evidences of molt among the contour feathers 

 but not in the quills. 



These birds bear out the characters ascribed to Mixornis everetti 

 by its original deseriber; but this Natuna form is clearly a subspecies 

 of Mixornis rubicapilla, being connected by individual variation. 

 The Juvenal plumage is paler and less rufescent above than the adult. 



Measurements are given in Table 21. 



Table 21. — Measurements of specimens of Mixornis rubicapilla everetti 



Measured in the flesh by the collector. 



MIXORNIS RUBICAPILLA ZAPERISSA, new subspecies 



Suhspecific characters. — Similar to Mixornis rubicapilla everetti from 

 Bunguran Island, but with throat, jugulum, and middle of abdomen 

 more deeply and clearly yellow (less tinged with grayish), and with 

 much narrower dusky streaks on anterior lower parts; the upper 

 surface is also somewhat lighter. 



Description.— Type, adult male, U.S.N.M. No. 174795, Pulo Ling- 

 ung, Natuna Islands, June 14, 1900; Dr. W. L. Abbott. Crown 

 and forehead, with anterior part of sides of neck, between chestnut 

 and auburn, the forehead slightly mixed with dark gray; remainder 

 of upper surface and the posterior part of the sides of the neck, be- 

 tween amber brown and Brussels brown, the upper tail coverts rather 

 lighter; tail at base auburn, but shading toward fuscous terminally 

 and on the inner webs of the outer feathers; wings light fuscous, the 

 margins of quills and upper wing coverts between chestnut and 

 Sanford's brown; lores dusky; a narrow supra-ocular stripe dull pale 

 yellow mixed with grayish; ear coverts grayish washed with chest- 

 nut; lower surface deep straw yellow, slightly shaded with gray on 

 the breast, and much so with pale gray on sides and flanks, the 

 throat and jugulum narrowly streaked with brownish black; crissum 



