ABT. 16. BIRDS FROM NORTH CELEBES RILEY. 75 



being only a little darker than the back, except the throat which 

 shades off into dark slate; it is the grayest specimen in the series, 

 but is approached by another male from Gimpoe. Perhaps they are 

 intermediates. This seems very probable, as a specimen from Tobea 

 Island, Buton Strait, resembles a specimen of the gray-breasted type 

 from Gimpoe, but is not as gray as the specimen from Rano Lindoe 

 mentioned above. Two other males from Gimpoe are as dark as the 

 extreme northern birds, however. It would appear as if the gray- 

 breasted birds are the old males. 



Van Oort ^^ has shown that the type locality of Ceblepyris morio S. 

 Miiller is northern Celebes (Tondano and Gorontalo) and names 

 the southern form EdoliisoTna Tnorio wiglesworthi. 



Genus CELEBESIA Riley."" 



The original description was as follows: 



Similar to MaUndangia Mearns but bill proportionally narrower (width just 

 forward of the nostril equal to the depth instead of broader) ; fifth primary 

 (counting from the outside sherter than the third instead of longer; rectrices 

 more rounded; plumage not so soft in texture; and color pattern different. 



To the above original diagnosis I would like to state that in 

 MaUndangia the tail about equals the wing in length, while in the 

 above genus it is quite a little shorter. 



Type and only known species the following: 



152. CELEBESIA ABBOTTI Rilcy.s^ 



Seven males and four females, Rano Rano, December 9-27, 1917. 

 The original description is as follows : 



Upper parts, including the lesser wing coverts, slate gray ; lores, superciliary, 

 auriculars and throat, deep shining black ; remaining under parts, white ; wings 

 (except the lesser coverts) black, the feathers edged outwardly with the color 

 of the back ; bend of wing blackish ; under wing coverts, white ; middle tail 

 feathers slightly darker than the back with an irregular line along the shaft 

 towards the tip and shaft black; remaining tail feathers blackish, the three 

 outer with a subterminal band of deep neutral gray, widest on the outer and 

 almost disappearing on the third, all the tail feathers narrowly bordered at the 

 tip with white, this almost obsolete as the middle feathers are approached; 

 thighs black. Wing, 114 ; tail, 87 ; culmen, 20 ; tarsus, 25.5 ; middle toe, 17.5 mm. 



The females only differ from the males in having the face and throat slate 

 gray instead of shining black. 



There is some slight variation in the series of males. The black 

 shaft line on the middle tail feathers is much narrowed or confined 

 to the shaft; the dark gray subterminal tip on the three outer tail 

 feathers and the narrow white terminal edging are much reduced or 



a^Notes Leyden Mus., vol. 29, 1907, p. 77. 



=« Proc. Biol. Soc. Wash., vol. 31, 1918, p. 158. 



''Idem, p. 158. 



