BIRDS FROM SIAM AND THE MALAY PENINSULA 191 



one adult male, Huey Yang, Kao Luang, Nakon Sritamarat, October 

 9, 1930. 



Dr. W. L. Abbott collected four males and four females in Trang 

 (Tyching, July 25, 1896; Lay Song Hong, November 3-22, 1896; 

 Kao Soi Dao, February 2, 1899; Trang, January 27, 1899); one male, 

 Pulo Terutau, Langkawi Group, April 6, 1904; two males, Tenasserim 

 (Bok Pyin, February 16, 1900; Telok Krang, February 14, 1904). 



Dr. Abbott gives the soft parts as: Iris dark red, eyelid black; 

 casque yellow on the sides, deeper on top and tinged with red, espe- 

 cially in the middle, base and front black; lower mandible bluish 

 white, becoming yellow at tip, black at base and along commissure; 

 upper mandible yellow like sides of casque, becoming red at tip, a 

 narrow line along commissure, another along culmen, and base black; 

 feet leaden or olive-brown, claws black (males). The fem.ale seems 

 to differ somewhat: Iris white or gray white; orbital skin dull red; 

 casque dull orange yellow, dull red above in front and dark red behind; 

 upper mandible dull orange yellow, dark red at tip; lower mandible 

 pale yellowish white, a yellow patch beneath near tip; base of bill 

 narrowly black; feet pale green, claws bluish homy or greenish leaden. 



The weight of six males is given as 5.75 to 7.5 pounds, average 6.63; 

 two females: 4.75 and 5 pounds. 



The form ranges from India south of the Himalayas east to Burma, 

 Siam, and Indo-China and south through Peninsular Siam to the 

 Malay States. In Siam it has been taken nearly all over the country 

 and on many of the islands off the coast. A smaller form, Dichoceros 

 bicornis cristatus (Vieillot), occurs on Sumatra. 



HYDROCISSA CORONATA CONVEXA (Teimninck) 



Buceros convexus Temminck, Nouveau recueil de planches colorizes d'oiseaux, 

 livr. 89, pi. 530, 1832 (Java). 



Dr. W. L. Abbott collected a subadult female at the Rump in 

 River, Pahang, June 29, 1902. 



This race ranges from Borneo, Java, and Sumatra to the Malay 

 States and Peninsular Siam as far as Patani. 



Bonhote ^® records specimens from Bukit Besar and Biserat, Jalor, 

 and Patani. Apparently there are no other Siamese records, but 

 farther south in the Malay States it is not an uncommon bird, fre- 

 quenting the seacoast near cultivated areas. 



HYDROCISSA MALABARICA LEUCOGASTRA (Blyth) 



Buceros leucogaster Blyth, Journ. Asiat. Soc. Bengal, vol. 10, p. 922, 1841 (Tenas- 

 serim) . 



Two males and three females, Nong Khor, near Sriracha, November 

 7, 1924, September 26, 1925, November 13 and 15, 1926; one female, 



" Proc. Zool. Soc. London, 1901, vol. 1, p. 70. 



