132 abstracts: ornithology 



graphical area some 55 by 65 miles in extent. Dr. W. L. Abbott was, 

 in 1899 and 1900, the first ornithological collector to visit these islands, 

 and he made a collection of 212 specimens, representing 44 species and 

 subspecies, of which 21 were new. These, together with other obser- 

 vations made by Dr. Abbott, Ijring the number of birds known from 

 these islands up to 66. This number will doubtless be greatly in- 

 creased by future explorations, though the Anamba group does not 

 seem to be so rich in bird life as the Natuna Islands, which lie nearer 

 Borneo. In onl}^ one case, so far as known, are there two subspecies 

 of the same species on different islands in this group. Of the birds now 

 known from the Anambas, 11 are migrants from the north, and do 

 not breed on the islands. Fifteen subspecies are peculiar to the Anamba 

 Islands, and six other subspecies occur outside of the group only on some 

 other islands of the South China Sea. The remaining 24 Anamba birds 

 belong to more or less wide-ranging species. Taken as a whole, the 

 Anamba Islands are faunally most closely allied to the Malay Peninsula; 

 less so, but about equally to Sumatra and Borneo; still less to Java; 

 and only slightty to Indo-China. Among the most interesting of the 

 new forms discovered by Dr. Abbott in the Anamba Islands might be 

 mentioned those of the genera Muscadivores, Collocalia, Artamides, 

 Cyornis, Hi/pothyniis, Kittacincla, Lamprocorax , and Dissemurus. 



H. C. 0. 



ORNITHOLOGY.— r/ie birds of Bawean Island, Java Sea. Harry C. 

 • Oberholser. Proc. U.S.Nat. Mus. 52: 183-198. Feb. 8, 1917. 



Bawean Island is mountainous, with an area of approximatel}^ 100 

 square miles, from, which some 18 species of birds had been recorded 

 prior to Dr. W. L. Abbott's visit from November 19 to 28, 1907. His 

 collection of 35 specimens of birds is of much interest, since 7 of the 15 

 species represented prove to belong to undescribed forms, most of them, 

 so far as known, confined to this island; and since it adds 8 species to the 

 list, making a total of 26 now known from here. The avifauna of 

 Bawean Island as a whole is most closely allied to that of Java, but it 

 has also a marked Bornean infusion. Among the most interesting new 

 forms discovered by Dr. Abbott are a new hawk of the genus Spilornis, 

 very different from the Bornean Spilornis pallidus and much nearer the 

 Sumatran bird, Spilornis bassus; a new species of Strix, very different 

 in coloration from Strix orientalis and Strix ocellata, the characters of 

 both of which it somewhat curiously combines; and a new form of 

 Malacocincla abbotti. A series of Microtarsus baweanus, collected by 



