i9iS-] recently collected in Siam. 101 



birds, and, erroneously believing that the typical race came 

 from the north, redescribed the smaller southern form under 

 the name of saigonensis, which is a pure synonym of Jiavo- 

 sirictus. The type of the latter is in the Leyden Museum, 

 and its measurements are {fide Goffin, Mus. Pays-Bas, i. 

 p. 37) : bill 24-8 ; wing 112*8 ; tail Q7'7 ; tarsus 22-5 mm.,— 

 while the type of saigonensis from Saigon measures : culmen 

 26-5 ; wing 103 ; tail 58 ; tarsus 24 5. 



The larger darker-headed northern form, ranging from 

 southern China to Annam, is thus still without a name, and 

 may be known as 



Thereiceryx flavostrictus pr.etermissus, subsp. nov. 



Typical locality : Southern China. Extreme measure- 

 ments recorded : culmen 30; wing 118, tail 80; tarsus 27. 



As is to be expected, birds inhabiting a great part of Siam 

 are intermediate between the two. The species is recorded 

 by Gyldenstolpe in the extreme north-west, but in the 

 south has not been met with west of the Menam. 



-j^48. Xantholaema haematocephaia (P. S. L. Miill.). 



2 S . Lat Bua Kao. 



Iris dark or brown ; eyelids crimson ; bill black ; feet 

 dull cerise, claws black. 



T. L. 160, 170; W. 81, 84. 



PlCID^. 



49. Gecinus canus hessei (Gyldenstolpe). 



Picus canus hessei Gyldenstolpe, Ornith. Monatsber. xxiv. 

 1916, p. 28; id. Kungl. Sv. Vet.-Akad. Handl. Ivi. No. 2, 

 1916, p. 317. 



Ficus canus occipitalis Gyldenstolpe, Kungl. Sv. Vet.- 

 Akad. Handl. 1. No. 8, 1913, p. 47. 



1 c?, 2 ? . Lat Bua Kao. 



Iris crimson ; bill black ; feet grey. 



T. L. 335, 333,31-5 ; T. 103, 105, 105; W. 148, 148, 149; 

 Ta. 31-5, 31, 31 ; B. f. g. 46, 49, 43. 



Gyldenstolpe-'s statement (second reference quoted) that 

 this race is smaller than G. c. occipitalis is an obvious slip. 



