1. OEOCICHLA. 171 



])riiiiary between the eighth and ninth, bastard primary 1-2 inch 

 Legs, feet, and claws " flesh-colour." Length of wing 4-2 inches 

 tail 3-4, culmen 0-[), tarsus 1-32. ' 



Nothing is known of the changes of plumage of this species. 



Gurney's Ground-Thrush has only been obtained in the forests of 

 iSutal and the Transvaal, where it is supposed to be a resident. 

 «. c? ad. sk. Macamac, Transvaal. J. H. Gurney, Esq, [P.], 



2(7. GeocicMa piaggii, (Plate XI.) 



r Turdus fauve ou rou-x, Lefeb. Abi/ss. Ois. p, 168*. 



? Turdus gurneyi, Ifartl. ' apicd Himjl. Orn. X.O.-Afr. i. p 384 



(186i), purtim). 

 Turdus piaggii, Boui-ier, Bull. Soc. Zool. France, 1877, p. 4.56. 



This species only differs from G. cjurtmji (Hartl.) in having the 

 foiehead chestnut, shading into chestnut-brown on the head and 

 ear-coverts. Eill dark brown above and below. Wing with the 

 fourth and fifth primaries nearly equal and longest, second primary 

 between the seventh and eighth, bastard primary 1-0 inch. Leo-s 

 feet, and claws pale. Length of wing 4-15 to 4-U inches, tail S-Oo'to 

 3-3, culmen 0-8G to 0-8, tarsus 1-3. 



Nothing is known of the changes of plumage. 

 _ The Central-African Ground-Thrush is only known from the 

 Uganda country, near the supposed source of the Xile. 

 u. Ad. sk. Lake Sanne. ^ A. Bouvier, Esq. [C.J, 



(Type of Turdus piaggii, Bouvier.) 



27. Geocichla crossleyi. 



Turdus crossleyi, Sharpe, P. Z. S. 1871, p. 607, pi. xlvii. : Beichewnr, 

 Journ. Orn. 1875, p. 50. 



General colour of the upper parts russet-brown, darker and more 

 rufous on the head, and also more rufous on the rump and upper 

 tail-coverts, and shading into bright rufous-chestnut on the nape ; 

 lores dark brown, above the lores chestnut-red : no trace of eve- 

 stripe ; innermost secondaries rufous-brown, especiallv on the out- 

 side web, and still more rufous at the tips : white spots on the 

 wing-coverts exactly as in G. gumei/i ; tail dark rufous-brown, 

 the outside feathers obscurely tipped with white. The whole 

 of the underparts, including the axillaries and under surface of 

 wing, exactly as in G. r/umei/i. Bill dark brown above and below. 

 AVing with tlic fourth and fifth primaries nearly equal and longest, 

 second primary a trifle shorter than the seventh, bastard primarj' 

 0-it inch. Legs, feet, and claws pale. Length of wing 4-0 inches 

 tail 2-l).5, culmen 0-91, tarsus 1-3. ' 



Xothing is known of the female or ijouny. 



Crossley's Ground-Thrush is only known from the Cameroon 

 Mountains, West Africa. 



a. Ad. sk. Cameroons, Feb. 24, R. B. Sbarpe, Esq. (T^•pe 



18/ 1 ( Crossleij). of Turdus crussleiji, Sbarpe.) 



