386 MR. R. B. SHARPE ON BIRDS FROM MADAGASCAR. [June 9, 
Turdus goudoti, Verr. Nouv. Arch. i. p. 77, pl. v. fig. 2 (1866). 
*Nossi Vola. Native name Kankimave.” 
“Female. Saralalan, Nov. 19th, 1869. Local.” 
M. Grandidier (/. ¢.) states that the original specimen of this 
species was not adult, and that the birds obtained by him in Mada- 
gascar differed materially from the description given by Dr. Hartlaub. 
The specimens procured by Mr. Crossley seem to be ‘intermediate in 
plumage between the type specimen and the bird figured (J. c.) as 
Turdus goudoti, but do not have the white collar so distinct. If, 
as M. Grandidier asserts, the original Ty/as eduardi is a young 
bird, we may conclude that the white collar is characteristic of the 
old bird. 
I would remark upon what appears to be a curious case of mimicry 
in regard to this species, as compared with Vanga polleni, Schl. (Faun. 
de Madag, Ois. p. 174: 1868). The specimen before me agrees 
very well ‘With the description given by the learned Professor ; and I 
really supposed I had a specimen of Vanga polleni before me, till 
Professor Newton identified the bird as Tylas eduardi. All I can say 
is that, if Tylas eduardi, Hartl., and Vanga polleni are two distinct 
species, we have a case of mimicry which is almost unrivalled for 
interest ; for it is evident that the Shrike assumed the plumage of 
the more peaceful Thrush because it doubtless served him well in 
pursuit of his prey. 
Fam. TIMALIIDE. 
OXxyYLABES, gen. nov. 
Rostrum elongatum, apicem versus compressum; maxilla mandi- 
bulam paullo superante : dertro recto, apice decurvato: gonyde 
ascendente setis brevibus ad basin mandibule : naribus ovalibus 
supra parvo membrano obtectis. 
dle rotundate, remige primo brevi, secundo et tertio gradatim 
longioribus ; quarto, quinto, secto et septimo equalibus et lon- 
gissimis. 
Cauda longa, rectricibus duodecim, externa brevissima, duabus 
proximis gradatim longioribus, sex mediis longissimis et sub- 
aequalibus. 
Pedes robustissimi, unguibus validis ; tarso scutellato, digito exrte- 
riore quam interior paullo longiore, halluce ambos superante. 
The subjoined woodcut illustrates the characters of this new genus. 
The type is 
3. OxXYLABES MADAGASCARIENSIS. 
Ellisia? adage arate (Briss.) ; Hartl. Faun. Madag. p. 37 
(1861). 
“Nossi Vola. Native name Cerun-cerun. Eye brown. \ Con- 
tents of stomach insects.” 
This bird appears to me to be without doubt the Rossignol de 
Madagascar of Brisson; and Professor Newton, who compared the 
