2 BULLETIN 159, UNITED STATES NATIONAL MUSEUM 



Species not represented by specimens sent by Doctor Abbott are 

 marked with an asterisk (*). Twenty- two new subspecies from the 

 Natima Islands are here described, in addition to one already pub- 

 lished.^ Two subspecies from other localities are also for the first 

 time named (see p. 89). 



As always, the writer is indebted to the officials of the United States 

 National Museum for courtesies in connection wdth the preparation 

 of this report. For the loan of specimens he wishes to thank also 

 the Academy of Natural Sciences of Philadelphia. 



Measurements are, of course, all in millimeters, and have been 

 taken as explained in Baldwin, Oberholser, and Worley's "Measure- 

 ments of Birds," ^ but in one species (p. 39) two other measurements, 

 self-explanatory, have been used. The names of colors in descriptions 

 are based on Ridgway's "Color Standards and Color Nomenclature." * 



BIBLIOGRAPHY 



By reason of the limited attention that has been paid to the birds of 

 the Natuna Islands, their ornithological literature is not extensive. 

 The following list contains probably all the more important titles. 

 Except for the first two by Doctor Hartert, these papers make only 

 casual mention of birds from the Natuna Islands. 



1874. Sharpe, Richard Bowdler: Catalogue of the Accipitres or diurnal birds 

 of prey in the collection of the British Museum, xiv + 480 pp., 14 pis. 



1894. Rothschild, Walter: First glimpses of the zoology of the Natuna 

 Islands. Nov. Zool., vol. 1, no. 2, pp. 467, 468, Apr. 16. (Mentions 

 the occurrence of one species of bird.) 



1894. Hartert, Ernst: List of the first collection of birds from the Natuna 



Islands. Nov. Zool., vol. 1, no. 2, pp. 469-483, Apr. 16. (Records 66 

 species from the Natuna Islands.) 



1895. Berlepsch, Hans von: Description of two new species of the genera 



Phoenicophaes and Spilornis, with a note on Oriolus consobrinus Rams. 

 Nov. Zool., vol. 2, no. 2, pp. 70-75, July 3. 



1895. Hartert, Ernst: List of a second collection of birds from the Natuna 

 Islands. Nov. Zool., vol. 2, no. 3, pp. 466-478, Aug. 17. (An anno- 

 tated list of 93 forms.) 



1897. : Podargidae, Caprimulgidae, and Macropterygidae. Das 



Tierreich, Lief. 1, viii + 98 pp., before Mar. 31. 



1903-1921. : Die Vogel der palaarktischen Fauna, Band 1, pp. 



i-l+ 1-832, 1903-1910; Band 2, pp. i-xxiv + 833-1764, 1912-1921. 



1905. FiNSCH, Otto: Dr. A. W. Nieuwenhuis' Forschungsreisen in Niederlandisch 



Borneo ; Omithologische Ergebnisse, haupsiichtlich von oberen Mahakam 

 und Kajan. Notes Leyden Mus., vol. 26, nos. 1-2, note 1, pp. 1-154, 

 July 15. 



1906. Oberholser, Harry C: A monograph of the genus CoUocalia. Proc. 



Acad. Nat. Sci. Philadelphia, for 1906, pp. 177-212, July 26. ^ 



s Hjipothymis azurea gigantoptera Oberholser, Proc. U. S. Nat. Mus., vol. 39, p. 600, Feb. 25, 1911. 

 » Sci. Publ. Cleveland Mus. Nat. Hist., vol. 2, Oct. 14, 1931. 



* Ridgway, Robert, Color standards and color nomenclature, 43 pp., 53 pis., Washington, D. C, 1912 

 (published Jan. 16, 1913.) 



