112 Mr. C. Bodeu Kloss on Birds [Ibis, 



mandible sometimes paler or greenish ; feet dark olive or 

 plumbeous-olive, soles dirty yellow. 



T. L. 322, 320, 310, 315 ; W. 165, 167, 165, 166 ; B. f. g. 

 51, 56, 53, 50. 



Gyldenstolpe, who eollected this species on both his visits 

 to Siam, first identified a female from eastern Siam (wing 

 159) and other birds from northern Siam (wings 156-150) 

 as indonialaijicus Hesse, and later recorded other specimens 

 from the latter locality (wings 161-168) as true gutti- 

 cristatus, the typical locality of which is Chota Nagpur. 



The typical locality of indomalayicus is the island of 

 Salanga or Junk-Ceylon, near the west coast of the Malay 

 Peninsula, whence Hume and Davison record males with 

 wing-lengths of 156 and 160 mm., "bills from front" 

 46 and 50 mm. I have examined a series from the Malay 

 Peninsula and Lang Kawi Id., and find that the wings 

 measure from 148 to 157 mm. 



Large birds from the Himalaya with wings of 170-190 mm. 

 (and also from the Dafla Hills, Assam, whence the Indian 

 Museum has a female with wings of 175) are sultaneus 

 Hodgs. ; while the southern Indian form, dehsserti Blyth, 

 has wings of about 147-155 {vide Hume, ' Stray Feathers,' 

 iii. p. 64). The first continental bird to be described, gvtti- 

 cristatus Tickell, is scarcely represented topo-typically in 

 collections and no useful measurements have been recorded, 

 which is most unfortunate, as all these races are merely 

 dimensional ones. 



In view of its position gutticristatus is probably inter- 

 mediate in size between sultaneus and delesserti, and there- 

 fore has wings of 155-170 mm., in which case it is difficult 

 to see how indomalayicus Hesse can be maintained, especially 

 since birds from Tipperah, Arakan, Pegu, and Siam come 

 exactly between the maximum and minimum of delesserti 

 and sultaneus as given above. Until therefore we know more 

 about gutticristatus, it seems to me that it would be best to 

 ignore indomalayicus and regard gutticristatus as extending 

 from Bengal through Burma and Siam into the Malay 

 Peninsula as far as Lang Kawi Island. 



