DRYOSCOPUS SENEGALENSIS 339 
Dryoscopus verreauxi, Cab. in Deckens Reis. iii. p. 26 (1869) Gaboon ; 
Shelley, B. Afr. i. No. 739 (1896). 
Laniarius (Dryoscopus) tricolor, Cab. and Reichen. J. f. O. 1877, p. 103 
Chinchonxo. 
Dryoscopus tricolor, Shelley, B. Afr. i. No. 741 (1896); Sharpe, Ibis, 
1908, p. 333 Camaroon. 
Dryoscopus senegalensis var. camerunenensis et grisescens, Reichen. 
Vog. Afr. ii. p. 592 (1903) Camaroon. 
Dryoscopus affinis, Ogilvie-Grant, Ibis, 1908, p. 332 Ponthierville ; id. 
Trans. Zool. Soc. xix. p. 343 (1910) Congo Forest. 
Adult male. “Entire upper half of head, back of neck, mantle, upper 
side of wings, upper tail-coverts and the tail jet black, no white on the 
shoulders or wings; lower back and rump forming the puff, and the entire 
under parts pure white; wing lining with the coverts pure white excepting 
a black patch next to the primaries, quills dusky-black, with a slight silvery 
shade on a portion of the inner margins, outer tail-feathers dusky black below 
with a black shaft. Total length 7°5 inches, culmen 0-7, wing 3:1, tail 2°6, 
tarsus 0°85. Efulen, 3, 3. 4. 02 (Bates). 
Adult female. Differs in having the mantle, wings and tail dusky, not 
jet black, with a varying amount of slaty-grey mixed with the dusky of 
the mantle ; the puff-feathers of the rump are dark slaty-grey or pure white 
throughout or slaty-grey with white bases; there is a white band from the 
nostrils to the upper part of the eye above the black lores; under-parts 
slightly greyish; tail-feathers silvery below, with whitish shafts most 
noticeable on the outer feathers. Wing 3:0, Camaroon (Bates). 
Immature. Differs in having the mantle, wings and tail slaty rather than 
dusky brown; the wing-coverts and quills finely edged with whitish, and 
the bill paler, especially at the base of the lower mandible. Yambuya 
(Jameson). 
This species ranges over West Africa from Camaroon to 
Portuguese Congo, and inland through the Congo Forest to 
the Mombattu country. 
The type described by Hartlaub is stated to have come 
from Senegambia, but appears more probably to have been 
from Gaboon. This specimen, now in the Leyden Museum, 
which, through the courtesy of Dr. von Oort, I have been able 
to examine, is a female and matches very well examples from 
Camaroon or Gaboon now in the British Museum. The name 
D. verreauxi was given by Cabanis to some Puff-back Shrikes 
