ART. 12 BIRDS FROM ISLANDS NEAR BORNEO RILEY 7 



1. Muscadivores picJceringii pickeringii (Cassin). Sulu Islands 

 and the coast of north Borneo. 



2. Mitscadivores 'pickeringii langhomei Mearns. East and West 

 Bolod, and Loran Island, near Basilan, Philippines. Lighter on the 

 mantle and back than pickeringii. 



3. Muscadivores pickeringii pail/inoisensis Mearns. Palmas Island, 

 east of Mindanao, Philippines. Darker on the mantle and back than 

 pickeringii. 



There seems to be little or no constant difference in size between 

 the races. 



An immature male from Bilang Bilangan (No, 182279) has a con- 

 siderable number of the wing-coverts drab at the tips; the forehead 

 and throat are extensively white; the under tail coverts fawn color; 

 and the breast and head much less tinged with vinaceous. A female 

 from the same locality approaches it, but is nearer the adult plumage. 

 Specimens showing an approach to the above characters are probably 

 birds of the year, the adult having the chin and throat narrowly 

 white, the under tail coverts drab gray, the head and chest washed 

 with pale vinaceous drab, and the wing coverts dark olive gray 

 without drab tips. 



5. MYRISTICIVORA BICOLOR (Scopoli) 



Columba Vicolor Scopoli, DeL Flor. et Fauu. Insubr., pt. 2, 1786, p. 94 (New 

 Guinea). 



One male, Pulo Sangalaki, May 28 ; 2 males, Pulo Maratua, August 

 28 ; 11 males and 2 females, Pulo Bilang Bilangan, May 30-June 3. 



One male, Bilang Bilangan (No. 182256), has the under tail 

 coverts with rather large, round, subterminal black spots; the outer 

 tail feather with the black border at the tip barely indicated and 

 dusky rather than black ; and the back and wing coverts pallid neutral 

 gray. Evidently a bird of the year. 



Judging from the above, the apparently adult specimens with the 

 under tail coverts tipped with black are younger than those with 

 entirely white under tail coverts. 



Family COLUMBIDAE 



PIGEONS and DOVES 



6. COLUMBA GRISEOGULARIS (Walden and Layard) 



lanthoenas grlseogularis Walden and Layaed, Ibis, 1872, p. 104, pi. 6 (Gui- 

 maras, Philippines). 



One male, Pulo Bilang Bilangen, May 31. 



There seems to be no constant difference between the above male 

 and specimens from the Philippines. It measures : Wing, 226 ; tail. 

 135; culmen from cere, 13. 



