18/1.] MR. R. B. SHARPE ON THE BIRDS OF CAMEROONS. 61.3 



56. NlGRITA BICOT.OR. 



Nigrita bicolor, Hartl. ; Sharpe, Cat. Afr. B. p. 61. 

 " Cameroons Mountains, January 7th, 1871." 



The genus Nigrita now contains the following species: — 



Clavis specierum generis Nigritse. 

 a. subtus nigra?. 



a', fronte nigra. 



a", major: tectricibus supracaudalibus albicanti- 



cinereis 1 . canieapffla. 



h". minor: tectricibus supracaudalibus nigris 2. emilice. 



V. fronte stramineo-lutescente 3. lutcifrons. 



h. subtus lactescenti-albre. 



a', uropygio brunneo, dorso concolori 4. fusconota. 



b'. uropygio dilute cinnamompo 5. uropygiaMs. 



c. subtus chocolatina 6. bicolor. 



d. subtus uinbrino-cinerea 7. arnavdi. 



Order ACCIPITRES. 

 Fam. Falconid.e. 



57. ACCIPITER HARTLAUBI. 



"Cameroons Mountains, January 16th, 1871." 



Above dark blackish brown with narrow and almost obsolete 

 rufous edgings to the feathers ; quills blackish brown, with the same 

 obsolete rufous edgings ; the under surface of the wing much lighter 

 and inclining to pale rufous, with very distinct black cross bars and 

 tips to the feathers ; tail very dark brown, barred across with 

 blackish brown and pale rufous, the outer feathers quite plain, 

 and all the tail-feathers tipped with pale rufous ; throat white ; 

 rest of the under surface of the body rust-colour, lighter and more 

 inclining to white down the centre of the body, the flanks very di- 

 stinctly marked with diamond-shaped spots of blackish brown ; legs 

 deep rust-colour, with indistinct black transverse bars ; under wing- 

 coverts pale rust-colour, with a few blackish spots on the lower 

 feathers and axillary plumes ; bill black, yellowish at the gape and 

 base of lower mandible ; legs deep yellow, claws black. Total length 

 13 - 7 inches, culmen - 9, wing 7*5, tail 7'4, tarsus 2*3. 



Mr. Gurney has very kindly compared my specimen with typical 

 examples in the Norwich Museum ; and we came to the conclusion 

 that the bird described is a young male of this species. 



Fam. Strigid.e. 



58. Syrnium ncchale. 



Syrnium nuchale, Sharpe, Ibis, 1870, p. 487. 



"Cameroons Mountains, February 20th, 1871." 



Mr. Gurney identifies this as a young bird of the West African 

 Syrnium lately described by me. I add a detailed description of the 

 specimen now sent. 



