DUTCH BORNEO-EXPEDITION. — INTRODUCTION. 1 



NOTE I. 



ZOOLOGICAL RESULTS OF THE DUTCH SCIENTIFIC 

 EXPEDITION TO CENTRAL BORNEO, 



INTRODUCTION 



Dr. J. BÜTTIKOFER. 



(With a map). 



The following Hues are intended to serve as an intro- 

 duction to a series of articles which will treat , under the 

 above mentioned general title, of the zoological collections 

 made during the latest Dutch explorations in Western and 

 Central Borneo ^). 



Early in the year 1893 the Society for the advancement 

 of Natural history exploration in the Dutch Colonies 

 (Maatschappij ter bevordering van het Natuurkundig on- 



1) The following papers on the zoological collections of the Expedition have 

 already been published in previous volumes of this periodical : 



R. Horst, on a large Earth-worm from Borneo. Vol. XVI, pp.137 — 144, 

 pi. 7. 



F. A. Jentink, some remarks concerning the Orang oetan. Vol. XVll, 

 pp. 17—18. 



J. C. C. Loman, on some Land-planariaus of the genus Bipalium {Bipa- 

 lium expeditionis). Vol. XVII, p. 33. 



C. Ritsema Cz., the Lucanoid Coleoptera of the Dutch Scientific Borneo- 

 Expedition. Vol. XVII, pp. 133—140. 



M. M. Schepman, the Mollusca of the Dutch Scientific Borneo-Expedition. 

 Vol. XVII, pp. 145—163, plates 2—4. 



C. Ritsema Cz., new species of the Melolonthid genus Apogonia. Vol. 

 XVIII, pp. 25—32. 



M. M. Schepman, on JJnio injrarostratus. Vol. XVIII, p. 140. 



Notes from the Leyden Museura, Vol. XIX. 



1 



