170 TtTRDID-E. 



24. Geocichla bivittata. 



Turdus bivittatus, Seichenow, Jouni. Om. 1874, p. 104 ; id. Joitrn 

 Orn. 1875, p. 47. 



General colour of the upper parts russet-bro-svn, very russet on 

 the upper tail-coverts, but inclining to olive-brown on the upper 

 back ; lores dark brown ; no trace of eye-stripe ; ear-coverts brown ; 

 median and greater wing-coverts dark brown, with large terminal fan- 

 shaped white spots ; primary-coverts dark brown ; tail russet-brown, 

 the outside feathers with white tips. Chin, upper throat, belly, 

 and under tail-coverts nearly wliite, shading into pale russet-brown 

 on the lower throat, breast, and flanks ; asiUaries, basal half white, 

 terminal half brown : under wing-coverts, basal half brown, terminal 

 half white ; basal portion of the inner web of secondaries white. 

 Bill dark brown, paler at the base of the under mandible. Wings with 

 the fourth primary sliglitly the longest, second primary about equal 

 to the seventh, bastard primary 0-95 inch. Legs, feet, and claws 

 Hesh-colour. Length of wing 4"51 inches, tail 3-02, culmen 0*9, 

 tarsus 1"37. 



Ifothing is known of the changes of plumage of this species. 



E.eichenow's Ground-Thrush has only been obtained on the moun- 

 tains of the Gold Coast, where it is supposed to be resident. 



The British Museum does not possess an adult skin of this species. 

 The description is taken from the type in the Berlin Museum. 



a, b. Juv. sk. Denkera {Auhimi). E. B. Sharpe, Esq. [P.]. 



25. Geocichla gurneyi. 



Tardus gurnevi, Hartlauh, Ibis, 1S64, p. 350, pi. ix. ; Laijard, B. S. 

 Afr. p. 129 "(1807) ; Gtinm/, Ibis, 1868, p. 156 ; Gray, Hand-l. B. 

 i.'p. i?o3. no. 3672 {imQ) ;' Heugl. Orn. X.O.-Afr. p.' 384 (1869); 

 Ayres, Ibis, 1876, p. 426; Sharpe, ed. Lm/ard's B. S. Afr. p. 202 

 (1876) ; Sahin 4' Sclater, Ibis, 1877, p. 324. 



General colour of the upper parts olive-brown, slightly dai'ker on 

 the head and shading into fulvous brown on the rump and upper 

 tail-coverts, the innermost secondaries, and the unemarginated 

 portion of the outside webs of the quills ; lores dark brown, above the 

 lores chestnut-brown ; no trace of eye-stripe ; ear-coverts dark olive- 

 brown ; quills brown ; lesser wing-coverts fulvous brown ; median 

 wing-coverts dark brown, almost black, with large terminal fan- 

 shaped white spots ; greater Aving-covcrts similar, but the white spot 

 principally confined to the outside web; primary-coverts dark brown ; 

 tail fulvous brown, the outside feathers obscurely tipped with white. 

 Chin, throat, breast, and flanks chestnut, shading rather suddenly 

 into white on the belly, thighs, and under tail-coverts, the longest 

 of the latter obscurely margined with brown ; axiUaries, basal half 

 white, terminal half dark olive-brown ; under wing-coverts, basal 

 half dark olive-brown, terminal half white ; basal portion of inner 

 web of secondaries white. Bill dark brown above and below. Wing 

 with the fourth and fifth primaries nearly equal and longest, second 



