PERICROCOTUS LANSBERGEI. 155 



NOTE XXIII. 



ON A NEW SPECIES OE PERICROCOTUS 

 EROM SUMBAWA. 



BY 



J. BÜTTIKOFER. 



(Plate 6). 



Amongst a collection of birds, collected in the Timor 

 Group of Islands and presented to the Museum in 1882 by 

 Mr. van Lansberge, the late Governor General of the Ne- 

 therlands' Indies, I found a hitherto undescribed species 

 of Pericrocotus which I propose to name after the Dona- 

 tor who has done very much for natural science and espe- 

 cially for the benefit of the Leyden Museum. Having lately 

 (Notes 1886, p. 67) been obliged to suppress the species 

 Ardea Lanshergei Schl., it is quite a satisfaction to me 

 to bestow this specific name upon another species. In a 

 next number of the » Notes" I hope to give a detailed list 

 of the very important collection which contains , amongst 

 other rarities, aforesaid new species. 



Pericrocotus Lanshergei, spec. nov. 



This species belongs to that subdivision of the red-tailed 

 group ^), which has the tips of the inner secondaries entirely 

 black , without any subterminal red or yellow spot on the 

 outer web , and will find its place between P. igneus Blyth 

 and P. peregrinus L. , the male reminding that of P. igneus 

 by the glossy black head, back and wings, while the fe- 

 male stands nearer that of P. peregrinus on account of 

 the greyish white lower surface. 



1) See Sharpe, Cat. Birds Br. Mus. Vol. IV, p. 70. 



Notes from the Leyden IVLiaseum, "Vol. VIII. 



