262 BULLETIN 17 2, UNITED STATES NATIONAL MUSEUM 



Family ALAUDIDAE: Larks 



MIRAFRA ASSAMICA MARIONAE Baker 



Mirafra assamica marionae Baker, Bull. Brit. Orn. Club, vol. 36, p. 34, 1915 

 (Ayuthia, central Siain). 



Two males and one female, Koh Lak, June 5, 1933; one male, 

 Potaram, February 4, 1926; three males, Ban Pong, September 17, 

 18, 1929; one unsexed, Nong Kae, May 6, 1929; two females, Chieng- 

 mai, November 24, 1928; one male and one female, Noan Wat, 

 February 14, 1929. 



The only specimen of M. a. assamica available for comparison has a 

 longer, heavier bill, less heavily streaked upperparts and chest, and 

 the wing is longer. 



The form ranges from Tenasserim through Siam to Assam and east 

 to Cochinchina, Cambodia, and southern Annam. It apparently 

 occurs all over Siam proper in suitable locaUties and as far to the south- 

 west as Koh Lak. 



MIRAFRA JAVANICA WILUAMSONI Baker 



Mirafra cantillans williamsoni Baker, Bull. Brit, Orn. Club, vol. 36, p. 9, 1915 

 (Bangkok, Siam), 



Fifteen males and nine females, Bangkok, September 2, 1923, 

 February 7, 1924, November 11, 1925, June 23-October 30, 1926; one 

 female, Nakon Patom, April 10, 1926; one male, Nong Kae, May 7, 

 1929; one male. Bung Borapet, March 25, 1933; one male, Bung 

 Tabgrit, March 27, 1933. 



A small series of M. j. javanica is huffier and browner above and 

 huffier below and the bills are much heavier than in williamsoni. 



Five immatures were collected by Dr. Smith in June, five in August, 

 and one September 6. They are about adult size, none very young. 

 The plumage greatly resembles the adult above but is darker and lacks 

 the cinnamon-buff edgings; the feathers are more truncate at the tip 

 and are narrowly edged with light buff; the crest is short, clove brown, 

 the feathers truncate with a narrow huffy fringe; below they are much 

 like the adult but Ughter, the chest streaks less clearly defined or 

 almost absent. 



Herbert ^'^ states that they breed around Bangkok in May and June 

 and as late as the end of July; he describes the nest and eggs. Kloss ^* 

 took a single female at Lat Bua Kao. This specimen is now in the 

 United States National Museum and is darker below than any speci- 

 men in the considerable series collected by Dr. Smith; it is also huffier 

 and more grayish above. It may belong to the form described by 

 Delacour "^ from Honquan, Cochinchina, as M. j. beavlieui. 



M Journ. Nat. Hist. Soc. Siam, vol. 6, p. 217, 1923. 



•• Ibis, 1018, p. 222. 



M L'Oiseau, new .ser., vol. 2, p. 616, 1932. 



