CHARACTERS.--Similar to _O. ruficeps ruficeps_ (Lesson), (specimens from Borneo), but slightly larger, with longer bill; upper parts clearer gray; crown slightly deeper brown. MEASUREMENTS. CULMEN NO. SEX LOCALITY WING TAIL TARSUS TO BASE 57,529 [Male] ad. Cagayan de Sulu 56 47 24 20 86,601 [Male] ad. Sibutu 54 45 23 20.5 REMARKS.--There are, in the U. S. N. M., three skins from Sibutu similar in all respects to ours. Birds from Palawan and Clulion Islands are somewhat smaller than those from Sulu, but agree in color more nearly with them, than they do with true _ruficeps_ of Borneo. ZOSTEROPS FORBESI, sp. nov. Two adult males from Camiguin Island, 2 August, 1921. TYPE.--M. C. Z. 86,369 adult [Male], Camiguin Island, 2 August, 1921. W. Cameron Forbes. CHARACTERS.--Similar to _Z. basilanica_ Steere, but larger; upper parts much brighter and yellower,--yellowish citrine rather more strongly yellowish on head and upper tail coverts; yellow of under parts brighter and clearer--bright yellow chrome. MEASUREMENTS. CULMEN NO. SEX WING TAIL TARSUS FROM BASE 86,369 [Male] ad. 57 49 16 13 86,368 [Male] ad. 56 47 15.5 13 REMARKS.--This new form which is well marked and quite distinct, belongs in the group characterized by possessing a wide stripe of yellow along the median under parts and gray sides and flanks. In the Philippines this group is represented by: 1. _Zosterops siquijorensis_ Bourns & Worcester. Negros, Siquijor. 2. _Zosterops boholensis_ McGregor. Bohol. 3. _Zosterops everettii_ Tweeddale. Cebu. 4. _Zosterops forbesi_ Bangs. Camiguin. 5. _Zosterops basilanica_ Steere. Basilan, Bongao, Dinagat, Leyte, Mindanao, Papahag, Samar, Jolo, Tawi Tawi. I have given the new form, which is named in honour of Governor W. Cameron Forbes, specific rank because in an enormous genus, largely composed of island forms, like Zosterops, I do not know where to draw the line between species and subspecies and much prefer leaving the question to be decided by some future reviewer of the genus. _Zosterops meyleri_ McGregor also of Camiguin Island, is a small species with _wholly_ yellow under parts, belonging in a different group of the genus. ORIOLUS XANTHONOTUS PERSUASUS, subsp. nov. Four adults, both sexes, Palawan, August. TYPE.--M. C. Z. 64,180 adult [Male], Puerto Princesa, Palawan Island, 14 August, 1913. W. Cameron Forbes.