CHASEN, F.N

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PRELIMINARY DIAGNOSES OF NEW BIRDS FROM MALAYSIA.ByF. N. CHASEN(Director, Raffles Museum, Singapore).Pteruthius flaviscapis leuser subsp. novoFemale like the continental aeralatus above, that is with less chestnut onthe inner secondaries, than in the Sumatran cameranoi, but the under partsdeeply buff as in this last named race.Type. - Female, collected on Mt. Leuser, Atjeh, North Sumatra, 900-2000 metres, on 8th February, 1937. Mus. Buitenzorg, No. 10200.Specimens examined. - A male and. a female, compared with long seriesof the two most closely allied races. These North Sumatran birds seem' torepresent a race exactly intermediate in characters between the two races foundon the Malayan and South Sumatran mountains.Oriolus maculatus edgari subsp. novoLike O. m. maculaius of Java, but the bill larger.Type. - Adult female, collected on Singapore Island, on 26th April, 1937.Raffles Museum.Remarks. -:- Although it has not hitherto been realized, there is a breedlngrace of this oriole in the south of the Malay Peninsula. In winter its range isinvaded by large numbers of the migratory diffusus. This breeding race is verylike the resident bird of Java. Mr. HOOGERWERF'Scollection now confirms theconclusion arrived at by Dr. G. C. A. JUNGEand myself in Leiden last yearthat the Sumatran race is also the large-billed form. In this case I have selecteda Malayan bird as the type as it seems that the racial character is slightlymore .pronounced in Malayan than in Sumatran examples. Mr. A. T. EDGARwas the first to find the nest in the Malay States.Cyanoderma rufifrons sarawacensis subsp. novoNearest to C. r. poliogaster of the Malay States and Sumatra, but thecrown slightly more orange and less chestnut; and the lares and anterior partof the supercilium grey, not whitish.Type. - Adult male, collected on Mt. Poi, West Sarawak,4 - 5000 ft.,by E. BANKS.Sarawak Museum.Remarks. - Mr. HOOGERWERFwas fortunate in getting an example of thisvery rare babbler on his expedition. The fresh skin has enabled me to adjudgethe degree to which the few available skins are likely to have been altered by205206 TREUBIADEEL 17; 1939, AFL. 3.fading. A second Bornean specimen comes from the DIu Trusan III NorthSarawak.Terpsiphone paradisi madzoedi subsp. novoNearest to T. p. insularis of Nias Island, but the abdomen white, not grey.Type. - Adult male, collected at Lesten, Atjeh, North Sumatra, 700 metres(c.), on' 18th March, 1937. Mus. Buitenzorg, No. 11594.Remarks. - The finding of a g r e y-headed race of this flycatcher on themountains of North Sumatra is 'another of Mr. HOOGERWERF'Smore interestingdiscoveries. Two males and a female (all in the brown phase) have the entirehead, neck and breast grey, with the crown only slightly darker than the cheeksand throat. In the adjacent lowlands of North-East Sumatra a black-crownedrace is found (T. p. indochinensis).At Mr. HOOGERWERF'Srequest I have associated this new race with thename of a diligent Sundanese collector who accompanied the expedition to Atjeh,Erpornis zantholeuca saani subsp. novoNearest to the Bornean race E. Z. brumnescens, but the upper parts lessyellow and more deeply green: cap, darker.Type. - A female collected near Pendeng, Atjeh, North Sumatra, 500-800 metres, on 19th February, 1937. Mus. Buitenzorg, No. 10300.Remarks. - This specimen seems to be the first recorded example of the'species from the island of Sumatra. It needs no comparison with its nearestneighbour, the very much yellower interposita of the Malay Peninsula. It hasbeen compared with long series of brunnescens.The subspecific name is in recognition of the valuable services renderedby another of Mr. HOOGERWERF'Scollectors.

PRELIMINARY DIAGNOSES OF NEW BIRDS FROM MALAYSIA.

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PRELIMINARY DIAGNOSES OF NEW BIRDS FROM MALAYSIA.

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