KUNGL. SV. VET. AKADEMIENS HANDLINGAR. BAND 56. NIO 2. 



87 



163. Corydon sumatranus. Raffl. The Dusky Broadbill. 



Corydon sumatranus: Muller p. 395; Oustalct 1903 p. 63; Gairdner p. 39; Gyldenstolpe II: Gvldenstolpe 

 III p. 229; Gairdner p. 149. 



Sex 



Locality 



Date 



Total length 



Wing 



Tail 



Bill fr. gape 



Tarsus 









mm. 



mm. 



mm. 



mm. 



mm. 



<f 



Pak Koh 



"/.' 19H 



230 



131 



101 



35,5 



22 



ef 



Pak Koh 



as /:l 1914 



255 



134 



99 



38 



22 



? 



Koon Tan 



- s /g 1914 



240 



129 



106 



36 



23 



9 



Pak Koh 



8 /i 1014 



253 



136 



101 



36 



23 



ef 



Pak Koh 



s 7n 1914 



255 



134 



102 



36 



22 



ef 



Pak Koh 



Si h 1914 



232 



135 



96 



36 



22 



ef 



Pak Koli 



14 /:i 1914 



242 



134 



108 



37 



23 



? 



Hat Sanuk 



18 /2 1915 



263 



138 



104 



37 



23 



ef 



Hat Sanuk 



ls / 2 1915 



270 



134 



101 



37 



23 



Irides: brown. Bill: pink with the tip plumbeous grey. 



Nine specimens of this curious bird were collected in different parts of the country 

 both in Northern Siarn and in the Siamese Malaya. 



It generally occurs in flocks of about 8 to 10 individuals and they are very tame 

 and stupid. When flying they utter a whistling note, which I never heard when the birds 

 were resting. Then they made their presence known by a croaking note which could be 

 heard rather far away. 



There is very little variation as to the plumage with the exception of the white spöts. 



The males are separable from the females by having a greenish gloss on the under- 

 parts of the body. This gloss is always absent in female specimens. 



164. Cymbirhynchus macrorhynchus lemniscatus. Raffl. — The Black- and 



Red Broadbill. 



Cymbirhynchus malaccensls: Robinson & Kloss p. 50; Robinson I p. 96. 

 Cymbirhynchus nasutus: Schomburgk p. 258. 



Cymborhynchus macrorhynchus: Muller p. 394; Oustalet 1903 p. 63; Grant p. 96; Bonhote p. 68; Gairdner 

 p. 39; Gairdner p. 149; Robinson III p. 740. 



5 Hat Sanuk ls /-2 1915. L = 225 mm. — Irides: golden green. Bill: greenish blue with yellow base 

 and margins. Legs: påle blue. 



This beautiful Broadbill was very rare in every locality visited by the Expedition 

 and it was only observed a few times in the Siamese Malaya near the Tenasserim fron- 

 tier. 



Three subspecies ha ve been described of this bird. The typical C. macrorhynchus, 

 Gm., inhabits Borneo and is characterized by having no white spöts or markings on the 

 tail-feathers. 



Then there is C. m. lemniscatus Raffl. which previously has been found in Su- 

 matra and the Malay Peninsula to Tenasserim. This subspecies has white bars on the 



