18 Mr. P. L. Sclater on the Genus Chasiempis. 



paler colour; tail brown; the outer feathers marked at the 

 tip of the inner web Avith white ; legs black. Supposed to 

 inhabit the Sandwich Islands." 



Upon the first of these descriptions Gmelin established 

 his Muscicapa sandivichensis, and upon the second his 

 M. maculata. 



Beyond quoting these names, subsequent authors appeared 

 to have done little with the present species until 1847, when 

 Dr. Cabanis instituted his genus Chasiemjns for Muscicapa 

 sandivichensis, and pointed out the significance of this 

 Sandwich-Island bird belonging to the true Muscicapidse, 

 and not to the Tyrannida?. 



Notwithstanding this warning, I inserted, in 1862, in ray 

 ' Catalogue of American Birds ' a specimen of the female of 

 Chasiempis sandwichensis, then in my collection, as a " Cni- 

 polegiis, sj^. inc." I had purchased this skin of Vcrreaux, of 

 Paris, labelled " Chili," and was quite unaware of what it 

 really was (never having seen an example of Chasiempis 

 sandwichensis) until I took it over to Berlin some years 

 later, where Dr. Cabanis kindly determined it for me by 

 comparison with the specimens of both sexes of this species 

 in the Berlin Museum. This skin I sulisequently presented 

 to the British Museum *. It is the original of the accom- 

 panying figure (Plate I. fig. 2). 



The next time this species came under my notice was 

 when I w^as determining the birds of the voyage of the 

 ' Challenger.^ Amongst the specimens collected during the 

 short sojourn of the ' Challenger ' expedition in Ililo Bay, in 

 Owhyhee, Hawaian group, in August 1875, were two ex- 

 amples of Chasiempis sandivichensis. These were labelled as 

 females, but are, I think, males of this species. They are 

 now in the British Museum, and the figure (Plate I. fig. 1) 

 has been taken from one of them. 



Now the two specimens upon which Mr. Ridgway has 

 based \ns Chasiempis sclateri (Proc. U. S. N. M. 1881, 



• See Cat. B. Brit. Mas. iv. p. 2-32. The specimens at Berliu were 

 obtained by the celebrated collector Deppe, in Oahii, as Di\ Cabanis kindly 

 informs me. — P. L. S. 



