KUNGL. SV. VET. AKADEMIENS HANDLINGAR. BAND 50. N:0 8. 



25 



^ 22/2 1912 Bång Ilue Tloni. 

 Tail =-113 mm. 

 Culmen ==19 » 



cT 23/, 195 2 Bång Hue Horn. 

 Tail =110 mm. 

 Culmen -= 18 » 



^ ^Vs 1912 Bång Hue Horn. 

 Length = 230 mm. Tail =109 mm. 

 VVing =104 » Culmen = 19 » 



20. Otocompsa emeria L. — In the brushwoods round the town of Muang Pré 

 in Northern Siarn this beautiful Bulbul was very abundant and was found in great 

 flocks several times even visiting the gardens in the town. 



A female shot at Muang Pré on the 29th of February has a length of 170 mm., 

 wing = 78 mm., tail = 84 mm. 



21. Otocompsa flaviventris Tick. — The Black-crested yellow Bulbul was seen 

 now and then in the dry forests and on the outskirts of the evergreen jungles, b ut 

 was always scarce and single. I only got a female shot near Den Chai on the llth 

 of February 1912. 



Length = 180 mm. 

 Tail = 81 y> 



Wing = 79 mm. 

 Culmen = 11 » 



22. Rubigula johnsoni sp. n. [Plate I, fig. 3]. — Description : General colour 

 above greenish yellow; wing-coverts like the back; quills brownish, externally green- 

 ish yellow like the back; tail-feathers brownish and the edges of the feathers green- 

 ish yellow; crown of head black with a long black crest the margins of which have 

 a bluish gloss; chin black; feathers on the throat scarlet with a faint yellowish wash; 

 under surface, abdomen, vent and under tail-coverts bright yellow tinged with olive 

 on the chest; under wing-coverts and axillaries white with yellow edges on some of 

 the feathers; end of wing yellow like the under surface; quills below brown and 

 greyish white along the inner webs. 



Length = 170 mm. 

 Wing = 82,5 » 

 Culmen = 10,5 » 

 Iris = yellow 



Tail =86 mm. 

 Tarsus = 10,3 » 

 Bill from gape = ll,3 mm. 

 Bill = black 

 Legs = brownish black. 



As seen by the description given above this species is nearest Rubigula dispar 

 HoRSF. from Sumatra, but differs from that bird in having a well developed crest, 

 which is about twice as long as the same in Rubigula dispar Horsf. The tail and 

 the wings are also rather longer and the under parts much yellower and tinged 

 with olive on the chest instead of being uniform orange. 



This fine species was only observed in a single pair near the village of Sake- 

 rat on the Korat plateau in Fastern Siam. I observed them scurrying among the 



K. Sv. Vet. Akad. Handl. Band 50. N;o 8. 4 



