278 MESSRS. ROBINSON AND KLOSS ON 



gives for Kareni and Tenasserim birds wing measurements of 92 

 and 94 mm., while Baker records 87 mm. for Tenasserim birds. 



It is obvious that the VVliite-eared Red-vented Bulbul decreases 

 considerably in size from north to south, and that Gyldenstolpe was 

 well justified in naming the smaller southern birds. 

 Molpastes aurigaster thais Kloss, 



Molpastes aurhjaster thais, Kloss, Journ. Nat. Hist. Soc. Siam, vi, 

 1924, p. 291 (Bangkok). 



This form of the Orange-vented Bulbul which has been m^t 



with at Bangkok and Khao Sebab, Chantabun, may well be found 



eventually in our area. 



387. Otocompsa jocosa erythrotis (Bp.). 



Txos erythrotis Bonaparte, Consp. Gen. Av. 1, 1850, p. 265 (Java). 

 Otocompsa. emeria, A., pp. 321, 515 (Tavov to Bankasoon) ; E., 



p. 84 (Patani) ; F., p. 58 (Trang) ; H., p. 102 (Banclo;.) ; L., 



p. 109 (Ghirbi ; Junk Seylon). 

 Otocompsa pyrihotis, B., p. 26 (Junk Seylon). 

 Otoc'.mpsa jacosa, C, i, p. 198 (Tenasserim)^ D., p. 62 (Patani) ; 



Salvad., Ann. Mus. Civ. Gen. (2) vii, 1889, p. 437 (Malewoon). 

 Otocompsa emeria emeria, M., p. 194 (Tung Song ; Maprit). 

 Otocompsa emeria pegioensis, Baker, Fauna Brit. India, Birds, ed. 2, 



i, 1922, p. 396 (Pegu.). 



1 d . Tung Pran, Takuatung, P. Siam, 13 Feb. 1919 (No. 3986). 



2c?, 1$. Namchuk, Pakchan, P. Siam, 25-26 Feb. 1919 

 (Nos. 4220, 4225, 4256). 



" Iris dark ; bill and feet black". 



Total length d , 206, 192, 185 ; $ , 184 ; wing 6 , 85, 81, 82 ; 

 $ , 73 ; tail cS , 90, 88, 93 ; § , 82 ; tarsus d , 20, 21.5, 20.5 ; 9 , 20 ; 

 bill from gape 6 , 22, 20, 22 ; $ , 21 mm. 



Since our kej^ to the Bulbuls was printed (in which this bird 

 is entered as Otocompsa emeria iieguensis) we have learned that 

 jocosa Linn, has priority over emeria as the species name ; and have 

 found that the south-eastern form has been described and named by 

 Bonaparte. It is the smallest of the races, which are 0. jocosa 

 jocosa, China; 0. j. emeria, Bengal; 0. j. fuscicaudata, Madras; 

 0. j. erythrotis, Java. 



A. Hume & Davison, Stray Feathers, vi, 1878. E. O. Grant, Fasciculi Malayenses, iii (Birds), 190,0. 



B. Miiller, Die Ornis der Insel Salanfra, 1882. F. Robinson and Kloss, Iljis, 1910-11. 



C. Oate.s, Birds Brit. Biu-mah, Vols. i. iVii, 1883. G. Gairdner, Journ. N.H. Soc. Siam, i, 191.5. 



D. Bonhote, V. Z. S. 1901. Vol. i. H. Robinson, Journ. F. M. S. Museums, v, 1915. 



JOURN. NAT. HIST, SOC. SIAM. 



