1918. } H. C. Ropinson & C. B. Kross: Birds. ru 
12. Streptopelia suratensis subsp. tigrina (Temm. & Knip). 
Spilopelia tigrina (Yemm. & Knip); Salvad. Ann. Mus. 
Civ. Gen. xu, p. 246 (1879); Vorderman, Tijd. Neder]. Ind. 
xlix, p. 413, no. 416 (1889); Buttikofer, Notes Leyden Mus. ix, 
p. 76; Salvad. Ann. Mus. Civ. Gen (2) xi, p. 74 (1891). 
Turtur tigrinus, Snelleman, Sumatra Exped. Vogels, p. 48 
(7884) ; Salvad. Cat. Birds Brit. Mus. xxl, p. 440 (1893); 1d. 
Bull. Mus. Zool. Turin, xi, p. 12 (1896) ; Parrot, op. cit. p. 273. 
Streptopelia suratensis tigyina, Stuart Baker, Indian Pigeons 
& Doves, p. 210, pl. 21 (1913). 
a—b. 16,16-1mm.- Siolak Daras, Korinchi Valley, 
Sumatra, 3,000 feet. 14-20th -:arch. Nos. 
II5, 277- 
c-e. 26,1 %. Sandaran Agong, Korinchi Valley, 
Sumatra, 2,450 feet. 26th May-8th June, 
1914. Nos. 1683, 1836, 1891. 
“Tris pinkish orange, bill black, feet maroon pink.” 
Parrot (op. cit. p. 275) has separated the form from the 
mainland of Asia, including apparently the birds inhabiting 
Eastern Sumatra, from the typical race from Java under the 
name Turtur tigrinus minor, relying largely on the smaller size 
of the continental form, which has already been remarked on 
by other authors. No specific type is mentioned by Parrot but 
the wing of his Sumatran specimens range from 135 to 138.5 
and of his Javan birds from 140 to 144 mm. 
Specimens from the whole of the Malay Peninsula range 
from about 136 to 143 mm. and the four adult specimens from 
West Sumatra listed above from 145 to 158 measured in the 
flesh, so that they would appear to belong to the same race as 
the Javan form, if distinct. 
Stuart Baker (Joc. cit. p. 211), states that he is unable to 
separate the two races on the material in the British Museum, 
though the Sunda Island birds from Java, Lombok and Timor 
average larger, viz. 150 mm., though his measurements are 
apparently copied from Salvadori. 
It is obvious that on the strength of the dimensions 
quoted the West Sumatran specimens must be regarded as 
belonging to the same race as the Javan form and not to the 
continental form, to which Parrot’s specimens from East 
Sumatra are affiliated and in this connection the colour of the 
iris should be noted. In specimens from Sumbawa it is 
noted as “ pale bright yellow (Guillemard) ; in specimens from 
Burma as “ reddish” (Oates); from Java as ‘“‘ reddish pearl ”’ 
_ (Wallace), from West Sumatra ‘“‘ pale orange”’ (Klaesi), almost 
the same colour as noted by ourselves, viz., “‘ pinkish orange,” 
that is to say the irides of the Sumatran specimens are inter- 
mediate in colour between those from the éxtreme eastern and 
western ranges of the species, therein agreeing with their 
Part II: Vertebrata. 
