Letters, Extracts from Correspondence, Notices, fifc. 381 



dress whicli so nearly resembles the adult plumage of Hypotrior- 

 chis subhuteo. 



In the year 1861^ a coloured drawing of this specimen was 

 made for me by Mr. Wolf. 



The bird continued very healthy until February 1867, when 

 it died suddenly, being at the time in apparently good condi- 

 tion both as to flesh and plumage. It proved on dissection to 

 be a male. 



This specimen was, when it died, in. almost entirely the same 

 stage of plumage as when I purchased it, only diflPering from 

 Mr. Wolffs drawing in the dark shaft-marks on the sternal and 

 abdominal feathers being apparently rather longer and also some- 

 what broader and less defined on their lateral margins. 



The tardiness of any change towards a fuliginous plumage in 

 this specimen may have been due to its having been kept in 

 confinement ; but I think, nevertheless, that it is worth recording. 



J. H. GURNEY. 



Chislehurst, Kent, 

 May 12, 1867. 



Sir, — In my " Notes on Birds collected in Tenasserim and 

 the Andaman Islands" (P. Z. S. 1866, pp. 537-556), I pointed 

 out certain characters in a specimen of a Garrulax, from Siam, 

 which appeared sufficiently important to warrant me in regard- 

 ing it as belonging to an uudescribed species. Since then I have 

 had the advantage of perusing M. Pucheran's admirable essay 

 on the dentirostral types contained in the Paris Museum. 

 When reading the detailed description (Arch, du Mus. vii. 

 p. 376. no. 37) given by that eminent zoologist of Turdus diardi, 

 Lesson (Traite, p. 408), from Cochin China, I at once recognized 

 the characters which led me to separate G. leucogaster, nob., from 

 G. leucolophus (Hardw.) and G. belangeri. Less. M. Pucheran 

 writes, " la tete est blanche, ainsi que le thorax et I'ahdomen 

 dans sa partie mediane " et " ses cotes de I'abdomen et les 

 plumes couvrant le haut des tarses sont brun roux." In my 

 description of the Siamese specimen (/. c. p. 548. no. 20), the 

 words used are, " the entire under surface is white, the thigh 

 covers and flanks only being rufous." M. Pucheran ends his 



