ABYSSINIA AND THE BOGOS COUNTRY.—APPENDIX II. 315 
Sundevall’s name, C. olivacea, ought to be used instead of brevicaudata (vide Vogel 
Ost-Africas, Append. p. 862). 
P, 232. no. 61. Hypo.ais ELABICA. 
I suspect that this species will prove to be identical with Sylvia rama, Sykes (Proc. 
Zool. Soc. 1832, p. 89), but not having seen Indian specimens I cannot settle the 
question. Sylvia opaca, Licht., from Western Africa, is also scarcely separable. Von 
Heuglin describes this species as Acrocephalus pallidus (Hempr. & Ehrb. Orn. N.-O. Afr. 
p. 294). 
P. 240. no. 80. ANTHUS SORDIDUS. 
The Rev. H. B. Tristram (Ibis, 1869, p. 437), who has had an opportunity of inspecting 
the specimens brought home by Mr. Blanford, calls attention to the fact that specimens 
from South Africa and India (Corydalla sordida, Blyth) are as widely different as A. 
gouldi from Western Africa, and therefore fully confirms the opinion expressed by me 
long before. Mr. Blanford (p. 382) mentions that A. sordidus varies considerably in 
colour and size; but I do not feel quite sure whether he did not confound another 
species with it. 
P. 244. no. 87. CRaTEROPUS LIMBATUS must be united with Cr. leucopygius, no. 86. 
Mr. Blanford (Geol. & Zool. Abyss. p. 371) also does not hesitate to treat them as 
identical. 
P. 247. no. 93. PLarystiRA PRIRIT must stand as Platystira affinis, Wahlberg (Journ. f. 
Orn. 1857, p. 3); Pl. pririt, Blanf. p. 345. no. 94. 
Having lately compared specimens from South Africa (the true Pl. pririt, Vieill.), I 
have convinced myself of the difference of this species, it being considerably larger, and 
the female quite differently coloured. The males described in our work (p. 315) from 
Damaraland and Gabon are unquestionably PI. affinis (as corrected, p. 866), whereas 
the description of the female (extracted from Levaillant) belongs to the true Pl. pririt. 
Von Heuglin (Orn. N.-O. Afr. p. 449) has since separated the north-eastern form as new 
(sub nom. P1. orientalis), and it is not impossible that they are specifically distinct ; espe- 
cially the females of the north-eastern form and the Pl. affinis seem to differ considerably. 
The female of the latter I know only from a careful description sent to us by the kind- 
ness of Professor Sundevall; but I have not seen a female from the north-east—the speci- 
mens with a chestnut guttural cross band (which von Heuglin keeps as females) being 
apparently young males, as stated by Mr. Jesse. The old males in Mr. Jesse’s collection 
* I could not distinguish from our southern and western specimens; and as von Heuglin 
also does not explain the differences, I am still uncertain whether the separation into 
two species will be right. To decide the question a large series from various localities 
is necessary. 
