DUTCH BORNEO-EXPEDITION. 177 



lower and tip of upper mandible white, central part of 

 upper mandible and front of casque chrome-yellow, rest of 

 casque and lower basal corner of upper mandible coral-red, 

 feet yellowish green ; the male is moreover characterized 

 by a black line running from the nostril along the lower 

 part of the horn, separating the red from the yellow parts 

 of the casque. 



Hab. Malay Peninsula, Sumatra and Borneo, where it 

 is found in the forests of the plains as well as in the 

 higher mountain-regions. 



61. Rhinoplax vigil. 



Buceros vigil Forst. Ind. Zool. p. 40 (1781). 

 Rhinoplax scutatus Salvad. Ucc. Born. p. 88. 



Rhinoplax vigil Everett, L. B. Born. p. 162; Sharpe, Ibis 1890, 

 p. 15. 



Several specimens observed along the high rock-walls 

 above my hunting station on Mount Liang Koeboeng. 

 Hab. Malay Peninsula, Sumatra and Borneo. 



62. Berenicornis comatus. 



Buceros comatus Raffl. Trans. Linn. Soc. XIII, p. 399 (1822). 

 Berenicornis comatus Bp. Consp. I, p. 91. 



Anorrhinus comatus Everett, L. B. Born. p. 164; Sharpe, Ibis 1890, 

 p. 16. 



An adult female from Bruuy River (Upper Mahakkam). — 

 Iris ochraceous, bill and feet dirty gray. 



Hab. Malay Peninsula, Sumatra and Borneo. 



»Dieser Vogel lebt nur paarweise. Seine Stimme ist ein 

 lebhaftes, sich oft hinter einander wiederholendes »kukuk", 

 beinahe wie der Ruf des europaischen Kukuks" (v. Berchtold). 



Meropiflae. 



63. Merops philippinus. 



Merops philippinus Linn. Syst. Nat. Ed. 13, 1, p. 183 (1767) '); Salvad. 

 Ucc. Born. p. 89; Everett, L. B. Born. p. 164. 



1) A supplementary edition to the twelfth, published at Vienna, 1767, 

 Notes from the Leyden IMuseum , Vol. XXI. 



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