DUTCH BORNEO-EXPEDITION. 167 
is straw-yellow. An immature specimen (N° 1500 from 
Poelau) has the lower surface partly green instead of 
cinnamon-brown. 
Hab. Malay Peninsula, Nias, Sumatra and Borneo, 
Indicatoridae, 
41. Indicator archipelagicus. 
Indicator archipelagicus Temm. Pl. Col. pl. 543, fig. 2 (1832); Salvad. 
Uce. Born. p. 61; Everett, L. B, Born. p. 169; Sharpe, Ibis 1890, p.9. 
An adult male from Poelau. — Iris red, bill black, base 
of lower mandible flesh-color, feet grayish brown. 
Hab. Malay Peninsula and Borneo. 
Cuculidae. 
42. Chaleococcyx xanthorhynchus. 
Cuculus xanthorhynchus Horsf. Trans. Linn. Soc. XIII, p. 179 (1822), 
Chrysococcyx wanthorhynchus Salvad. Uce. Born. p. 62; Everett, L. B. 
Born. p. 1721); Sharpe, Ibis 1890, p. 9. 
Chalcococcyx sxanthorhynchus Shelley, Cat. B. Br. Mus. Vol. XIX, 
p. 289. 
A male and two females from the Upper Mahakkam 
(Dr. Nieuwenhuis, 1899). 
Hab. South-western part of the Continent through the 
Malay Peninsula to Sumatra, Borneo and Java and the 
Andamans. 
43. Surniculus lugubris. 
Cuculus lugubris Horsf. Trans. Linn. Soe. XIII, p. 175 (1822). 
1) Everett, in a note to Chrysococeyx xanthorhynchus, suggests that Hetero- 
coccyx neglectus (Schleg.) Salvad. Ucc. Born. p. 61, the type of which is in 
the Leyden Museum, might be a style of C. zanthorhyuchus, for which reason 
he does not enumerate it in his List as a distinct species. Shelley, in his 
above mentioned catalogue, p. 294, adds it, though with a point of interrogation, 
fo the synonymy of Chalcococcye# basalis. Dr. Finsch, whom J asked to examine 
the bird in question, writes me that it is really a good species, allied to 
Prodotiseus regulus Sund. and that Heterococcya of Salvadori is a valid genus. 
Shelley entirely forgot to mention the genus in his Catalogue. 
Notes from the Leyden Museum, Vol. X XI, 
