1918.] recently collected in Slam. 197 



given, save that the noi'thern specimen is rather darker than 

 the others. 



"~^ 74. Pericrocotus cinereus Lafr. 

 1 (^ . Koh Lak. 

 Iris dark : bill and feet black. 

 T.L. 205; W. 96. 



Pycnonotid/E. 



'75. iEgithina viridissima (Bp.). 

 3 S . Koh Lak. 



Tris greyish-white, pale grey, or dark ; bill blue-grey, 

 cultnen blue ; feet dull cc^balt or greyish-plumbeous. 



T.L. 135, 138, 140; W. 58, 60, 59; B.f. g. 17-5, — , 16. 



4-76. .ffithorhynchus lafresnayei (Hartl.). 



jEthui^hynchus xanthotis Gyldenstolpe, Kungl. Sv. Vet.- 

 Akad. Handl. 1. No. 8, 1913, p. 22, pi. i. fig. 1. 



1 f^ , 1 ? . Lat Bua Kao. 



1 (J, 1 ? . Satahip near Liant, S.E. Siam, Nov. 1916. 



Iris brown or dark ; bill blue-grey, culmen black ; feet 

 blue-grey or dull cobalt. 



Males : T. L. 166, 162 ; W. 70, 71 ; B. f. g. 20*3, 23-2. 



Females : T. L. 165, 162 ; W. 68, 0,7 ; B. £. g. 22, 24. 



I have compared these birds, the males of which are iu 

 green plumage, with a large series of topotypes from the 

 Malay Peninsula, and they are quite identical with examples 

 in the same stage, except that, on the whole, they have 

 yellower ear-coverts ; but as these darken with age (becoming 

 black in old malesj tliis is a negligible difference. The wings 

 of Malayan birds range between 68 and 72 mm., and the bills 

 vary considerably. Gyldenstolpe's two males from eastern 

 Siam, recorded by him as y^. xanthotis, agree in description 

 and size with mine, so that, even if it is a good form, I do 

 not thinks, xanthotis Sharpe (Cat. Birds, vi. p. 15), based on 

 a single female from Caml)odia, can yet be claimed to occur 

 in Siam. A pair from Burma (Tenasserim and Minthan- 

 toung) do not diti'er from Malayan birds either. 



