THE BIRDS OF THE NATUNA ISLANDS 119 



1. Dicaeum trigonostigmum trigonostigmum (Scopoli). 



Certhia trigonostigma Scopoli, Deliciae florae et faunae Insubricae, pt. 2, p. 91, 

 1786. (Based on "Ibidem p. 209, Tab. 117, f. 2" [ = Le grimpcreau sifleur 

 de la Chine, Sonnerat, Voyage aux Indes Orientales et h la Chine, vol. 2, p. 

 210, pi. 117, fig. 2, 1782; we designate the port of Malacca as the type 

 locality].) 



Geographic distribution. — Malay Peninsula from about latitude 10° 

 N., south to Singapore Island and Linga Island. 



2. Dicaeum trigonostigmum rubropygium Baker. 



Dicaeum trigonostigma rubropygium Baker, Bull. Brit. Orn. Club, vol. 41, no. 259, 

 p. 108, Apr. 27, 1921. ("Mergui.") 



Geographic distribution. — Malay Peninsula north of latitude 10° N., 

 north to southwestern Siam, southern Burma, Assam, and Lakhimpur 

 in the Northwestern Provinces of India. 



3. Dicaeum trigonostigmum croceoventre Vigors. 



Dic[aeum]. croceoventre [Vigors], in Raffles's Memoir of Sir Thomas Stamford 

 Raffles, p. 673, 1830. ("Sumatra.") 



Geographic distribution. — Sumatra. 



4. Dicaeum trigonostigmum dayakanum Chasen and lOoss. 



Dicaeum trigonostigma dayakana Chasen and Kloss, Journ. f. Orn., Erganzungs- 

 band, 2, p. 121, Oct. 29, 1929. ("Bettotan near Sandakan, British North 

 Borneo.") 



Geographic distribution. — Borneo. 



5. Dicaeum trigonostigmum antioproctum Oberholser. 



Dicaeum trigonostigmum antioproctum Oberholser, Smithsonian Misc. CoU., 

 vol. 60, no. 7, p. 21, Oct. 26, 1912. ("Simalur Island.") 



Geographic distribution. — Simalur Island, Barussan Islands, western 

 Sumatra. 



6. Dicaeum trigonostigmum melanthe Oberholser. 



Dicaeum trigonostigmum melanthe Oberholser, Smithsonian Misc. Coll., vol. 

 60, no. 7, p. 21, Oct. 26, 1912. ("Pulo Lasia.") 



Geographic distribution. — Pulo Lasia, Barussan Islands, western 

 Sumatra. 



7. Dicaeum trigonostigmum, lyprum Oberholser. 



Dicaeum trigonostigmum lyprum Oberholser, Smithsonian Misc. Coll., vol. 60, 

 no. 7, p. 21, Oct. 26, 1912. ("Lafau, Nias Island.") 



Geographic distribution. — Nias Island, Barussan Islands, western 

 Sumatra. 



8. Dicaeum trigonostigmum pagense Oberholser. 



Dicaeum trigonostigmum pagense Oberholser, Journ. Washington Acad. Sci., 

 vol. 16, no. 19, p. 520, Nov. 18, 1926. ("South Pagi Island, Barussan 

 Islands, western Sumatra.") 



Geographic distribution. — Pagi group, Barussan Islands, western 

 Sumatra. 



