Ibis olivacea of Dubus. 183 



upper wing-coverts, forming a distinct patch on the wing, as 

 represented in Elliot's plate (P. Z. S. 1877, pi. li.). This 

 feature is not mentioned in Elliot's description, and from 

 Mr. Ogilvie-Grant's statements (in lift.) it appears that no 

 such character exists in the specimens from Denkera, so that 

 probably the coppery patch on the plate is owing to the fact 

 that the artist tried to shew the coppery reflexions which 

 in some lights are shown by the smaller upper wing-coverts 

 on the curve of the shoulders. 



Another point remains to be discussed as regards the 

 colouring of the neck and breast of L. olivacea Elliot, those 

 parts being of a " rich dark buff, every feather edged with 

 dark olive-brown." But a similar coloration bad been 

 already described by Cassiu as distinguishing the young 

 birds of Ibis olivacea which he had received from Muni, 

 Moonda, and Camma, together with fully adult birds, the 

 latter perfectly agreeing with Dubus's plate. 



I think, after all that I have said, that Lampribis olivacea 

 Elliot is an immature bird of Dubus's species, and Lampribis 

 vara a synonym of it. I may say that Dr. Finsch * is also 

 inclined to believe that such is the case, and for myself I 

 take it to be certain. It follows that Ibis olivacea Dubus is 

 the real type of the genus Lampribis. 



As to the affinities of the genus Lampribis , I should say 

 that they are mainly with the genus Bostrychia, both of them 

 having a bill of exactly the same shape and even size, a 

 full crest on the nape, and reticulated tarsi, but differing 

 much as regards the lores and sides of the head, which are 

 naked in Lampribis, but feathered in Bostrychia, the latter 

 having the additional character of a fleshy wattle on the 

 throat. 



Possibly Lampribis is allied to Lophotibis, but I have no 

 means of ascertaining this point, as I do not possess a speci- 

 men of L. cristata. According to Sharpe's Key to the 

 Genera, Lophotibis has the anterior aspect of the tarsi plated 



* The Leydeu Museum possesses one specimen of /. olivacea from 

 Prince's Island (Kcu/emanx), besides another Lampribis from Liberia 

 ( Biittikqfer), probably belonging - to a distinct species. 





