98 BULLETIN 159, UNITED STATES NATIONAL MUSEUM 



20. Lamprocorax panayensis tytleri (Hume). 



Calornis Tytleri Hume, Stray Feathers, vol. 1, no. 6, p. 480, Dec, 1873. ("An- 

 daman and Nicobar" [Islands].) 



Geographic distribution. — Andaman Islands and Nicobar Islands. 

 Family DICRURIDAE 



DISSEMURUS PARADISEUS ENDOMYCHUS, new subspecies 



Suhspecific characters. — Resembling Dissemurus paradiseus brachy- 

 phorus from Borneo, but wing and tail much longer; racket much 

 larger; exposed culmen and tarsus somewhat longer. 



Description.— Type, adult male, U.S.N. M. No. 174723, Pulo 

 Lingung, near Bunguran Island, Natuna Islands, June 17, 1900; 

 Dr. W. L. Abbott. Entirely brownish black, all the exposed part of 

 the body plumage metallic greenish or bluish, the cliin, throat, sides, 

 and flanks less so, the latter two mixed with dark grayish; wings and 

 taU somewhat less shiny brownish black; the rectrices and remiges with 

 their outer webs mostly metallic greenish or bluish, the exposed sur- 

 face of the upper wing coverts similar; lining of wing with a few small 

 white spots. 



The Natuna Islands Dissemurus may be distinguished from the 

 bird of the Anamba Islands, Dissemurus paradiseus microlophus,*^ by 

 the range of which it is most nearly approached on the west, by its 

 much shorter racket; longer tail; and denser, more bushj^ frontal crest. 



It differs from Dissemurus paradiseus hypoballus " of the Malay 

 Peninsula in larger size, and particularly in its much shorter crest, 

 which is also denser, stiffer, and more bristly. 



I am indebted to C. Boden Kloss for information regarding the size 

 of the racket in liis Dissemurus paradiseus banguey*^ from Banguej^ 

 Island, north Borneo, which shows that the Natuna form is not the 

 same as that, differing in much larger racket. 



The Juvenal plumage of Di.ssemurus paradiseus endomychus much 

 resembles that of its adult, except for lacking a good deal of the 

 metallic sheen, particularly below, and possessing large white spots on 

 the axillars and under wing coverts. The juvenal female (U.S.N.M. 

 No. 174722), has obscure grayish edgings on the feathers of the poste- 

 rior lower parts, and white tips on the under tail coverts. Juvenal 

 specimens are also smaller than adults, as shown by the measurements 

 here given. Doctor Abbott collected the following specimens: 



Adult male (type), U.S.N.M. No. 174725, Pulo Lingung, near 

 Bunguran Island, June 17, 1900. 



Adult male, U.S.N.M. No. 174723, Pulo Lingung, near Bunguran 

 Island, June 14, 1900. "Iris red." 



« Oberholser. U. S. Nat. Mus. Bull. 98, p. 69, June 30, 1917. 



" Oberholser, Journ. Washington Acad. Sci., vol. 16, no. 19, p. 518, Nov. 18, 1926. 



« Chasen and Kloss, Journ. f. Orn., Ergiinzungsband 2, p. 120, Oct. 29, 1929. 



