SOME RECENTLY DESCRIBED ISIAMESE BIRDS. 453 
this instance: I therefore restrict it to the region between Ayuthia 
and the head of the Gulf. The race extends down the Malay Penin- 
sula about as far as Mergui, and has a fairly large crest, when fully 
developed. 
Dissemurus paradiseus malayensis, Kloss, t. c., pp. 229, 518. 
Dissemurus paradiseus paradiseus, Baker (partim ), Nov. Zool., 
t. c., p. 300. 
This form, founded by Blyth on Penang birds, occurs through- 
out the Malay Peninsula from about Mergui to Perak. It has a 
smaller crest and wing than the typical race found round Bangkok 
and is quite worthy of the recognition which Baker fails to accord it. 
VOL. III, NO. 4, 1919. 
