of Madagascar and the adjacent Islands. 45 1 



(p. 163, pi. iv.). It is a native of Reunion ; but an adult male ex- 

 ample was also obtained by Dr. Diekerson in Joanna (Ibis, 1864', 

 p. 298), which is preserved in the Norwich Museum, where is 

 also deposited a second adult male from the same locality, as well 

 as a female and a young male procm'ed in Reunion, and presented 

 by Mr. and Mrs. Felix Bedingfeld. The Paris Museum contains 

 several specimens from Reunion, one of which is a nestling. 



20. Circus macrosceles, A. Newton. Long-legged Harrier. 

 So far as I am aware, this is the only species of Harrier which 



has been ascertained to exist in Madagascar ; and the type-spe- 

 cimen, still unique, is preserved in the Norwich Museum, to 

 which it was presented by its discoverer, Mr. Edward Newton, 

 who shot it in 1862, during his second visit to that island 

 (P. Z. S. 1863, p. 180; Ibis, 1863, p. 337). This example, 

 which was ascertained by dissection to be a male, has not yet 

 been figured, as it is apparently in immature plumage ; but its 

 specific distinctness is manifest from the following table of di- 

 mensions, showing how considerably it exceeds, especially in the 

 length of the tarsus, the males of the Reunion C. maillardi and 

 the South-African C. ranivorus, which latter species has been 

 supposed by M. Verreaux also to occur in Madagascar (Hart- 

 laub, Oru. Beitr. Faun. Madag. p. 24) : — 



Long. tot. Ales. Caudic. Tarsi. c iinff 



C. macrosceles, c? 22-75 plus quam 15 10 4 2-75 



C. maillardi, d 21-25 14 8-5 2-9 2-75 



a ranivorus, d 19-25 14-75 97 3 225 



The wing of C. macrosceles, though in the type-specimen 

 only measuring 15 inches from the carpal joint to the tip, is in 

 fact somewhat longer, tlie point of the wing in this example 

 having been considerably abraded. 



21. PoLYBOROiDES RADiATUS (Scop.). Madagascar Gym- 

 nogene. 



The adult birds of this species, which, so far as I know, is 

 only found in Madagascar, always differ from those of the nearly 

 allied African P. typicus, A. Smith, in the paler coloration of 

 the upper surface, and still more remarkably in the greater width 

 of the white bands which intervene between the transverse black 

 bars of the abdomen. 



