Vol. 31, pp. 155-160 December 30, 1918 



PROCEEDINGS 



OF THE 



BIOLOGICAL SOCIETY OF WASHINGTON 



TWO NEW GENERA AND EIGHT NEW BIRDS FROM 



CELEBES. 



BY J. H. RILEY.* 



When Dr. W. L. Abbott gave up his explorations in the 

 East a few years ago, he made arrangements to have this work 

 continued. Mr. H. C. Raven, who was selected to carry on 

 the work, visited East Borneo and later crossed to Celebes 

 where he performed excellent work in the north peninsula 

 and in the mountains of the northern part of Middle Celebes, 

 when, early in 1918, operations were temporarily suspended. 

 The following new birds have been discovered in identifying 

 this material and are published in advance of a complete cata- 

 logue of the collection. 



Caprimulgus affinis propinquus, subsp. nov. 



Type, adult male, U. S. National Museum, No. 250,197, Parigi, Celebes, 

 September 28, 1916. Collected by H. C. Raven (original No 3175). 



Similar to Caprimulgus affinis griseatus but buff of belly unbarred, the 

 ear-coverts and sides of neck more heavily marked with buff; the buffy 

 spotting on the wing-coverts more numerous and pronounced; the white 

 of the outer tail feather more extended basally. Wing, 171; tail, 101; 

 culmen, 10 mm. 



Remarks. — I have been able to compare this specimen with three males of 

 Caprimulgus affinis affinis from Java and one from Borneo and seven males 

 of Caprimulgus affinis griseatus from Sibuyan and Luzon, Philippines. 

 From the former it is much lighter, both above and below, and the buffy 

 spots on the chest and wing-coverts are more numerous and pronounced 

 and much lighter; the vermiculations on the back finer and the tail-bars 

 above narrower. From the latter it is much closer in color and forms a 

 connecting link ; the chief difference is the unbarred belly. 



Caprimulgus affinis mindanensis Mearnsf is a dark bird like true affinis 

 but with finer vermiculations above and with the belly barred, with which 

 the present form hardly needs comparison. It seems strange that the 

 Celebes bird should resemble the one from Luzon rather than that from 

 Mindanao. 



* Published with the permission of the Secretary of the Smithsonian Institution. 

 t Proe. Biol. Soc. Wash., 18, 1905. 85. 



39— Proc. Biol. Soc. Wash., Vol. 31, 1918. (155) 



