G. OSMOTRERON. 41 



Treron griseicauda, O. 11. Gr. MS8. ; id. List B. Brit. Mm. Columbse, 



p. 10(1856) (expatriaincerta); Schlcy.N.T.D.\.y.GQ(WJ>) (Java, 



Sumatra !),iii. pp. 210, 247 (part.) (lbOO); id. Mm. P.-B. Columbse, 



p 5.3 (part.) (1873) (Java and Sumatra !); ? Bosenb. Malay. Arc/up. 



p. 108 (1878) ; Vorderm. N. T. N. I. xlvi. p. 24 (1885) (Java) ; 



Tristr. Cat. Coll. B. p. 45 (part., Sumatra!) (1889). 

 ? Treron curvirostra, Bp. {nee Gm.) Icon. Pig. pi. (1857). 

 Treron pulverulenta, Wall. Ibis, 1863, p. 319 (Java), 1865, p. 376 ; 



id. J.f. 0. 1866, p. 277 ; G. li. Gr. Hand-list, ii. p. 222, n. 9082 



(1870); Wald. Tr. Zool. Soc. viii. p. 82 (1872); Salvad. lice. 



Borneo, p. 289 (1874); Nichols. Ibis, 1882, p. 67 (Java); Salv. 



Cat. B. StricM. CoU. p. 558 (1882) ( .Malacca !) ; Vorderm. 1\ . T. N. 



I. xlvi. p. 19 (1886) ; Tristr. Cat. Coll. B. p. 46 (1889) (Java) ; 



lleiu. $ Bchnio. Nomencl. Mus. Ilein. Orn. p. 279 (Borneo!) 



(1890). 

 Treron javanica, Schley. Be Dierent. p. 211 (18G4). 

 ? Osmotreron from Sumatra, Blyth, Ibis, 1870, p. 173 (Leyden 



Museum). 

 Treron pulverulentus, Elwes, P. Z. S. 1873, p. 679. 

 Osmotreron pulverulenta, Wald. Tr. Zool. Soc. ix. p. 212 (187o) ; 



Legge, B. Ceyl. p. 729 (1880). 



Adult mule (type). Upper part of the head grey, a little lighter in 

 front ; the grey colour extends also under the eyes and at the base 

 of the hill ; no green superciliary stripes : neck dull olive-green ; 

 front neck and underparts brighter olive-green ; on the sides of the 

 neck lower down a dull orange patch scarcely perceptible ; mantle 

 and inner small upper wing-coverts purple-chestnut, with a slight 

 mealy appearance ; an obsolete grey tinge between the neck and the 

 mantle; rump and upper tail-coverts yellow olive-green ; sides 

 tinged with greyish ; feathers of the flanks white, olive-green along 

 the middle or at the tip ; tibial feathers olive and white ; under 

 tail-coverts cinnamon, the basal ones olive, broadly edged with white ; 

 small upper wing-coverts near the bend of the wing dark lead-grey ; 

 median wing-coverts dark olive, with bright yellow edges, forming 

 a band across the wing ; greater upper wing-coverts and secondaries 

 black, edged with vellow ; primaries black ; under surface of the 

 wing and axillaries lead-grey ; central tail-feathers olive-green, the 

 others grey with an ill-defined darker grey band across the middle, 

 the inner ones tinged with olive-green on the outer webs; tail 

 underneath blackish grey, with abroad grey apical band: "ins 

 orange-red ; orbits bare yellow ; bill, base dark greenish, tip yellow- 

 ish white; feet purple-red " {Wallace). Total length 10-5 inches, 

 wing 5-5, tail 3-8, bill 0*65, tarsus o-U. 



Ft male. Differs from the male in having no chestnut colour on 

 the back and on the wing-coverts, paler yellow edges to the wing- 

 coverts and secondaries, and the under tail-coverts mingled white 

 and olive, and edged with whitish. 



I do not entertain any doubt as to the type of T. griseicauda, 

 with the band on the tail very ashy and ill-defined, belonging to 

 the present species. 



I believe that this bird is confined to .lava : still, specimens <j, h 

 were received as having been collected by Kafflcs in Sumatra. 



