THE, BIRDS OF SOUTH-WEST AND PENINSULAR SIAM. 161 



the crown and nape. They should be known as Chotorhea rafflesii 

 horneonsis (Megalacirva versicolor borneonsis, Blasius, Verh. Z. b. 

 Ges. Wien, xxxiii, 1883, p. 25.) 



Stresemann has pointed out (A.nz. Orn. Ges. Bayern, 1921, 

 p. 24) that Bucco versicolor Raffles, the name by which this species 

 has universally been known, is preoccupied by Bucco versicolor 

 P. L. S. Miiller, and that the next oldest name is Lesson's. 

 259. Chotorhea mystacophanes ( Temm. ). 



Bucco mystaco'phanes, Temminck, PI. Col. 315, 1827 (Sumatra). 

 Bucco quadricolor, Eyton, P. Z. S., 1839, p. 105 (Malacca). 

 Mecjalaema mystacophanes, A., p. 152 (Nwalabo to Malewoon); B., 



p. 75 (Junk Seylon). 

 Chotorhea mystacophanes, C. ii, p. 72 ; F. p. 43 (Trang) ; H., p. 94 



(Banclon). 

 Gyanops mystacophanes, D., p. 73 (Patani): F., p. 102 (Patarii); 



M., p. 429 (Peninsular Siam). 

 Cyanops mystacophanes aurantiiifrons, L., p. 100 (Ghirbi). 



?. Pangnga river, W. Peninsular Siam, 11 February 1919 

 (No. 3950). 



d", ?. Mamok, Pakchan Estuary, Peninsular Siam, 28 Feb- 

 ruary -3 March 1919 (Nos. 4314, 4391). 



6. Tapli, Pakchan Estuary, Peninsular Siam, 14 March 1919 

 (No. 4858). 



5 c5', 4 $. Tasan, Chumpon, Peninsular Siam, 16 -27 March 

 1919 (Nos. 4628, 4648, 4669, 4715, 4820, 4841-2, 4867, 4911). 



Male. " Iris rich brown ; bill black ; feet greenish plumbe- 

 ous." Female. " Bill black, pale lead at base of lower mandible." 



Total length 6, 213, 208, 232, 211, 215, 198, — ; 9, — , 232, 

 228, 237, 225, 222; wing c^, 95, 94, 97, 96, 98, 95, — ; $, — , 96, 

 94, 100, 100, 98; tail c^, 60, 56, 58, 60, 60, 57, — ; ? — , 60, 58, 58, 

 58,58; tarsus 6, 27, 26, 27, 26, 27, 27, — ; 2, — , 27.5, 26.5, 26, 

 26, 26; bill from gape 6, 41, 42, 44, 44. 43, 41, — ; $, — , 48, 44, 

 45, 45, 46 mm. 



The characters on which we founded C. m. aurantiifrons are 

 not stable, and the naine cannot be maintained : the orange red fore- 

 it Gyldenstolpe, Kungl. Sv. Vet. Akad. Handl. M. Baker, Journ. N. H. Soc. Siam, iii, 1919. 



56, No. 2, 1916. {first part). 



J. Robinson, Journ. F. M. S. Mus. vii, 1917. Baker, Journ. N. H. Soc. Siam, iii, 1919. 



K. Kloss, Ibis, 1918. (second part). 



L. Kobinson and Kloss, Journ. N. H. Soc. Siam, M. I. Baker, Journ. N. H. Soc. Siam, iv, 1920. 



iii. 1919. (third part). 



VOL. V, NO. 2, 1922. 



