39. SPHENOCICHLA. 283 



numerous dusky bands ; the abdomen relieved by small white spots 

 surrounded with black: flanks indistinctly banded; vent blackish 

 brown ; upper mandible blackish, the lower mandible whitish at tlie 

 base ; feet blackish. Total length (without tail) 5 inches, bill from 

 gape 1-2, wing 2-75, tarsus 1-2. (2Ius. Smithson.) 

 ^ Sumichrast's 'White-throated Rock-Wren is only known from a 

 single specimen obtained at Mata Bejuco, in Vera Cruz, Mexico. 



The above description is translated from the diagnosis of the (at 

 present unique) type specimen given by Messrs. Salvm and Godman, 

 who have also lent me a coloured figiu'e of the bird. 



39. SPHENOCICHLA. ^ 



Heterorhynchus, Mandelli, Str. F. i. p. 415 (1873) (nee ^ 



^ ^"fi'-). ■■ S. huniii. 



bphenocichla, Walden, Ibis, 1875, p. 250 S. liumii. 



Stachyrirhynclius, Hiime, Str. F. 1876, p. 217 S hiimii 



Head of Sphenocich/a humii. 



1. Sphenocichla humii. 



Heterorhynchus humii, Mandelli, Str. F. 187.3, p. 415. 

 Sphenocichla roberti, Godw.-Anst. S,- Wald. Ihis, 1875 p -^oO • Hume 



Str. F. 1876, p. 21 7 ; id. Str. F. 1879, p. 95. ' ^- " ' 



Stachyrirhj-nchus roberti, Htone, Str. F. 1876, p. 217, note • id. Str 



F. 1871), p. 95. 



Adult (Xative Sikhim, April 1875 ; Mandelli). General colour 

 above scaly, the feathers being brown in the centre, edo-ed with 

 black, the feathers of the head and mantle with buffv-white shaft- 

 lines, less distinct on the lower back and rump, the "dorsal feathers 

 indistinctly waved with narrow blackish cross bars ; upi^cr tail- 

 coverts reddish brown, narrowly barred with indistinct blackish 

 cross lines ; wing-coverts like the back, edged and obscurelv barred 

 in the same manner ; some of the greater coverts more ochraccous 

 brown towards the tips ; quills blackish brown, obsoletelv bari-ed 

 with lighter brown and black externally, the bars a little more 

 distinct towards the end of the secondaries ; upper tail-coverts and 

 tail rather more reddish brown, numerously barred with blackish 

 brown, the bars about 21 in number ; forehead blacker than the 

 head, with very distinct white shaft-streaks, the lores and sides 

 of the crown similarly coloured ; an eyebrow of light ashy feathers 

 tipped with white, drawn from above the eye to the sides of the 



