182 Journal of the F.M.S. Museums. [Vov. VIII, 
Pycnonotus sumplex, Sharpe, (partim), Cat. Birds Brit. Mus. 
vi, p. 153 (1881)1; Nicholson, Ibis, 1882, p. 60; Oberholser, 
Bull. 98, U. S. Nat. Mus., p. 44 (1917). 
Ixos simplex, Vorderman, Nat. Tijd. Nederl. Ind. xlix, 
p- 403, No. 258 (1889). 
Laedorusa simplex, Buttikofer, Notes Leyden Mus. xvii, 
Pp. 240 (1896). 
Pycnonotus species, Richmond, Proc. U. S. Nat. Mus. xxvi, 
p- 506 (1903). 
Pycnonotus olivaceus chlocodis, Oberholser, Smithsonian 
Misc. Coll. 60, No. 7, p. II (1912). 
a-b. 2%. Pasir Ganting, West Sumatran Coast, 
Lat. 2° S. 18th June, r91q4. [Nos. 2002, 
2003. | 
“Tris white, bill pinkish horn, feet pinkish brown.” 
Oberholser’s diagnosis of P. olivaceus chloeodis, which he 
has since reduced to a synonym of P. simplex, is “ similar 
to P. olivaceus olivaceus (Moore) but larger; paler beneath and 
averaging darker above.” 
The type locality, Tapanuli Bay and Pasir Ganting are 
about 200 miles apart and our specimens may therefore be 
regarded with reasonable certainty as representing Oberholser’s 
birds. 
As regards colour distinctions our two specimens, com- 
pared with a series of ‘‘olivaceus”’ from the central and 
southern parts of the Malay Peninsula (the type locality being 
Malacca) do not support Mr. Oberholser’s remarks, as we can 
perceive no differences whatever. 
In dimensions the wings of our two Sumatran Birds are 
76 and 77 mm., while the range in a dozen Malayan birds is 
from 76 to 8r mm., so that this evidence so far as it goes 
shows that the Sumatran bird does not differ in size from that 
of the mainland: olivaceus, therefore, is a synonym of simplex. 
Fairly common in the Casuarinas and scrub edging the 
beach. 
Rubigula dispar (Horsf.). 
Turdus dispar, Horsf. Trans. Linn. Soc. xii, p. 150; 
Raffles, tom. cit. p. 310 (1822). 
Rubigula dispar (Horsf.); Tweedd. Ibis. 1877, p. 306; 
Salvad. Ann. Mus. Civ. Gen. xiv, p. 220; Buttikofer, Notes 
Leyden Mus. ix, p. 62 (1887); Sharpe, Cat. Birds Brit. Mus. 
Wl, [De 307 (1881); Vorderman, Nat. Tijd. Nederl. Ind. xlix, 
P- 403, no. 254 (188g); Parrot, Abh. Konigl. Bayer. Akad der. 
Wissensch. 11, Kl. xxiv, Bd. I. p. 240 (1907). 
1 Sharpe’s plate (IX) of P. simplex represents P. prillwitzi, Hartert (Nov. 
Zool. ix, p. 561 (1902)) of Java, which is a form of P. brunneus, Blyth, fide 
Oberholser, Bull. 98, U. S. Nat. Mus. p. 47 (1917). 
Expedition to Korinchi: 
