86 Mr. C. Boden Kloss on Birds [Ibis, 



Iris dark ; bill black ; legs stone-grey or yellowish-grey ; 

 feet grey-black. 



T. L. 175, 173, — ; W. 108, 110, 108 ; Ta. — , 26-5, 28; 

 B. i. g. 21, 18, 20. 



The bird from Koh Lak has the head slightly tinged with 

 sandy-buff. 



Hartert and Jackson, in their " Notes on some Waders " 

 {I. c. s. p. 527), recognize two subspecies o£ C alexandrinus 

 as winter visitors in south-eastern Asia — C. a. alexandrinus, 

 ''bill generally about 14-15 mm., hardly ever longer^' 

 (Malay Peninsula and Islands), and C. a. dealbatus Swiiih., 

 differing "in its considerably stouter and longer bill .... 

 generally 16-17*5 mm." (Amherst, Tenasserim). By "biir^ 

 (of which no definition is given) I understand in this instance 

 the exposed portion of the culmen, which in my Koh Lak 

 birds measures 16*3, 17, 18 mm., while a female and two 

 males from the southern part of the Malay Peninsula 

 (Selangor, Malay States) have exposed culmens of 18, 19, 

 19 mm. and wings of 112, 110, 108 mm. respectively. 



As the type of C. a. dealbatus was said to have a bill of 

 •75 inch, or 19 mm., Hartert and Jackson are evidently 

 wrong in their diagnosis of the race ; and its range must 

 be extended to the south of the Malay Peninsula, where, 

 according to these authors, the true C. alexandrinus occurs, 

 though it is not yet represented there in the local museums. 



^15. Totanus glottis (Linn.). 



1 ? . Bangkok, Central Siam. Oct. 1916. 

 W. 187; Ta. 57; B. f . g. 62. 



Ardeid^. 



4-16. Butorides javanica (Horsf.), 



1 ? . Tachin, Central Siam. Oct. 1916. 

 W. 170 ; Ta. 47; B. f . g. 76. 



17. Ardeola grayi (Sykes). 



1 (J. Lat Bua Kao. 



1 ? . Tachin, Central Siam. Oct. 1916. 



