472 Mr. J. II. Gurney's Notes on 



A. hartlauh'i, A. minullus, and A. erythropus all bear in 

 their adult stage conspicuous Avliite spots on the inner web of 

 the middle rectrices ; and a similar white spot appears on the 

 upper part of the tail of a male specimen of A. tinus, from 

 Demerara, in the Norwich Museum, This specimen is in the 

 second stage of plumage ; and both it and a female in the 

 same collection are passing by a moult from that plumage to 

 the adult dress. 



As I am not aware that the colour of the iris in A. tinus 

 has been recorded, I may mention that an adult male from the 

 Ucayali, in the Norwich Museum, has been thus ticketed by 

 its collector : — " Iris brown, skin round the eye yellow.^^ 



The second plumage of A. tinus much resembles the im- 

 mature dress of ^. hartlaubi ; and as the latter is not described 

 by Mr, Sharpe in that stage, I may add the following parti- 

 culars of a young male from Casamanze, which is preserved 

 in the Norwich Museum : — The general colour of the upper 

 surface is dark brown, inclining to blackish on the crown of 

 the head, the feathers at the back of the head and neck 

 showing conspicuous white bases ; immediately above the 

 shoulders a decided tinge of rufous, which also appears on 

 the edging of the feathers forming the outer wing-coverts, 

 and especially of those near the carpal joint; all the quill- 

 feathers of the wing crossed with alternate bands of darker 

 and paler Ijrown on the inner webs, but not extending to the 

 innermost margin of these webs, which is of a pale buff 

 colour ; the outer webs of the primaries somewhat paler than 

 the adjacent portion of the inner webs ; the upper tail-coverts 

 white, with three cross bars of dark brown on each feather ; 

 the outer webs of the rectrices with dark transverse bars al- 

 ternating with paler bars, which latter are on the inner webs 

 more or less entirely white ; the dark bars are eight in num- 

 ber on the outer rectrices, and six on the remainder ; on the 

 under surface of the tail the entire interspaces between the 

 dark transverse bars are white, slightly tinged with buff; the 

 throat is creamy white interspersed with small spots and 

 shaft-marks of dark brown ; the entire remainder of the un- 

 der surface of the body, including the thighs, is white, with 



