138 U.S. NATIONAL MUSEUM BULLETIN 226 



Trichastoma abbotti williamsoni (Deignan) 



Aialacocincla abbotti williamsoni Deignan, Journ. Washington 



Acad. Sci., vol. 38, No. 5, May 20, 1948, p. 185 (Ban Pak 



Chong Ilat. 14°40' N., long. 101°25' E.], Nakhon Ratchasima 



Province, Thailand). 



Range: The southwestern portion of the eastern plateau (Sara Buri, 



Nakhon Ratchasima, Nakhon Nayok, Prachin Buri). 



Trichastoma abbotti obscurius (Deignan) 



Malacocincla abbotti obscurior Deignan, Journ. Washington 



Acad. Sci., vol. 38, No. 5, May 20, 1948, p. 185 (Khao Sa 



Bap [lat. 12°35' N., long. 102°15' E.], Chanthaburi Province, 



Thailand). 



Range: Coastal areas of the southeastern provinces from Chon Buri 



to Trat and the islet Ko Kut, off the coast of Trat. 



Trichastoma abbotti abbotti (Blyth) 



M[alacocincla]. Abbotti Blyth, Journ. Asiatic Soc. Bengal, vol. 14, 

 pt. 2, No. 164, [not earlier than October] 1845, p. 601 (Ramree 

 Island, Kyaukpyu District, Arakan Disivion, Burma). 

 Malacocincla abbotti rufescentior Deignan, Journ. Washington 

 Acad. Sci., vol. 38, No. 5, May 20, 1948, p. 184 (Ban Tha Lo 

 [about lat. 9°05' N., long. 99°15' E.], Surat Thani Province, 

 Thailand). 

 Range: The central plains lying west of the river Chao Phaj^a and 

 the southwestern and peninsular provinces from Kamphaeng Phet 

 to Satun. 



Trichastoma abbotti olivaceum (Strickland) 



Malacopteron olivaceum Strickland, Proc. Zool. Soc. London, 

 pt. 14, No. 165, Jan. 26, 1847, p. 102 (Malacca). 

 Range: Reported only from the southernmost peninsular provinces 

 (Pattani, Yala, Narathiwat). 



Genus MALACOPTERON Eyton 



Malacopteron magnum magnum Eyton 



Malacopteron magnum Eyton, Proc. Zool. Soc. London, pt. 7, 

 No. 78, November 1839, p. 103 ([Malaya]). 

 Range: The peninsular provinces from the Isthmus of Era to the 

 extreme South. 



Malacopteron cinereum indochinense (Robinson and Boden Kloss) 



liorizillas rufijrons indochinensis Robinson and Boden Kloss, 



Journ. Federated Malay States Mus., vol. 10, pt. 3, June 1921, 



p. 205 (Trang Bom [lat. 10°56' N., long. 107°00' E.], Bien Hoa 



Province, Cochin-China). 



