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PROCEEDINGS OF THE NATIONAL MUSEUM 



VOL. 77 



male, Pulo Samama, April 21 and 22 ; five adult males, one immature 

 male, and seven females, Pulo Derawan, April 25 and July 22-26; 

 three adult males and one female, Pulo Eraban, June 12 and 13 ; one 

 adult male, Pulo Miang Besar, September 10. 



The specimens from the northern islands of the group, Raboe 

 Raboe, Pandjang, Samama, and Derawan, seem to agree with speci- 

 mens from north Borneo. The birds from Eraban and Miang Be- 

 sar are somewhat smaller, especially the bill, and the cheeks are 

 olivaceous with little or no reddish wash. Specimens from the Ma- 

 hakkam River region are smaller than typical north Bornean birds 

 and the cheeks are more olivaceous with little or no reddish wash. 

 With the latter the Eraban specimens agree in size and color, which 

 is only natural, Eraban being only a little more northern and barely 

 separated from the main island at high tide. 



The average measurements in millimeters of the males of the above 

 series are as follows : 



10 males, north Borneo 



8 males, Derawan and adjacent islands 



7 males, east central Borneo 



4 males, Eraban and Miang Besar 



Wing 



Tail 



68.2 



47.7 



67.9 



46. 4 



66. 9 



43.9 



65. 4 



43 



Culmen 



18 



17.8 

 16.8 

 16. 7 



41. ANTHREPTES MALACENSIS MJOBERGI Bangs and Peters 



Anthreptes malacensis mjobergi Bangs and Petees, Occasional Papers Boston 

 See. Nat. Hist., vol. 5, 1927, p. 240 (Maratua). 



Three males and five females, Pulo Maratua, May 13-24 ; one male 

 and two females, Pulo Bakungan, May 18. 



This form is not so well differentiated from typical A. m. hornensis 

 from north Borneo as the original description would lead one to 

 infer. It averages slightly larger but the cheeks and postocular 

 region are hardly more reddish. The male from Bakungan has a 

 slightly smaller bill, but seems to agree, otherwise, with this form. 

 Two of the males from Maratua are in rather worn plumage and 

 the measurements are smaller than those given by the original de- 

 scribers. The four males measure: Wing 67.5-Y2 (69.5) ; tail, 45-47 

 (46) ; culmen, 17.5-19 (18.5). 



