THE BIRDS OF SOUTH-WEST AND PENINSULAR SIAM. 161 



the crown and nape. 'l'l>ey should bu known as Chott^rlwa raffleaii 

 horneonsls (Megalaevia verni<-olor borneanxls, Bhisius, Verli. Z. h. 

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



Streseniann has pointed out (Anz. Orn. Ges. Bayern, 1921, 

 p. 24) tliat BiLceo versicolor RatHes, tlie name by which this species 

 has universally been i^nown, is preoccupied by Bucco versicolor 

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

 259. Chotorhea mystacophanes ( Temm. ). 



Bucco )ui/stacophanes, Teiuminck, PI. Col. 315, 1827 (Sumatra). 

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

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



p. 75 (Junk Seyloii). 

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



(Baiulon). 

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



M., p. 429 (Peninsular Siam). 

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



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

 (No. 3950). 



cT, 9. Mamok, Pakchan Estuary, Peninsular Siam, 28 Feb- 

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



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

 (No. 4858). 



5 c5, 4 9. Tasan, Chumpou, Peninsular Siam, 16 -27 March 

 1919 (Nos. 4(j28, 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 d. 213, 208, 232, 211, 215, 198, — ; 9, — , 232, 

 228,237,225,222; wing d, 95, 94, 97, 96, 98, 95, — ; 9, — , 96, 

 94, 100, 100, 98; tail 6, 60, 56, 58, 60, 60, 57, — ; 9 — , 60, 58, 58, 

 58,58; tarsus 6, 27, 26, 27, 26, 27, 27, — ; 9, — , 27.5, 26.5, 26, 

 26, 26; bill from gape c^, 41, 42, 44, 44, 43, 41, — ; 9, — , 48, 44, 

 45, 45, 46 mm. 



The characters on which we founded C m. aurantl if irons arc 

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



!• Gyldenstolpe, Kungl. 8v. Vet. Akail. Hand). M. Baker, Joiirn. X. H. Soc. Siuiii, iii, 1919. 



56, No. -2, 1916. (Hrstpart). 



J« Robinson, .Tourii. V. M. 8. Mus. vii, 1917. Baker, Joum. N. H. Soc. Siam, iii, 1919. 



K. Kloss, IMs, 1918. (second part*. 



L. Itobiuson and Kloss, Joiirn. X. H. Soc. Siam, M. I. Baker, Joiim. X. H. Soc. Siam, iv, 19X. 



iii, 1919. (third part>. 



VOL. V, NO. 2, 1922. 



