Tertiary Foraminifera from Borneo. 247 



Teweh (Central Borneo) as being similar to those described by 

 Verbeek from the Pengaron district. 



Mr. A. V. Jennings *, in 1888, contributed an interesting 

 account of the Orbitoides composing the Silungen and Batu 

 Gading limestones of Northern Borneo, from material sup- 

 plied him by Mr. H. T. Burls, F.G.S., identifying the 

 following forms : — 



Orbitoides (Discocyclind) papyracea, Boube"e. 

 ( ) applanata, Giimbel. 



/ ( 1 epMpP™™,\j. de C. Sowerby. 



( J dispansa, J J 



■ {Asterocyclina) stellata, Giimbel. 



The author particularly notes the absence of Nummulites 

 in these limestones, and regards the species enumerated as 

 indicative of a later date than Eocene. 



A valuable report was issued by Dr. M. von Hantken f in 

 1889 on an examination of some rocks from Batu-Bangka, 

 South Borneo, in which the following specimens, referred to 

 an Upper Eocene age, were identified : — 



Orbitoides dispansa, Sby., 0. papyracea, Boubee, Hetero- 

 stegina (like) reticulata, Riitimeyer, Nummulites (rare), Ro- 

 talia, Globigerina, Bolivina, Pulvinulina, Glavulina cylin- 

 drica, Hantken, = C. rudislosta, sp. n., Gaudryina Reussi, 

 Hantken, G kilos tomella cylindroides, Reuss, Marginulina 

 subbullata, Hantken, Cassidulina globosa, Hantken, Globige- 

 rina bulloides, Orb., G. triloba, Reuss, Pseudotruncatulina 

 Dutemplei, Orb., P. propinqua, Reuss, Plecanium, &c. 



Dr. J. W. Retgers }, in 1895, records the occurrence of 

 Foraminifera (Nummulites and Orbitoides) in different lime- 

 stones obtained from localities on the east coast of Borneo, 

 but without reference to their geological age. 



(2) The late Mr. A. H. Everett's Specimens. — The late 

 Mr. A. H. Everett §, a few years since, presented to the 



* " Note on the Orbitoid il Limestone of North Borneo," Geological 

 Magazine, 1888, pp. 530-532, pi. xiv. 



t Included in Dr.T. Posewitz's < Borneo,' 1889, pp. 383,384 (published 

 in Berlin) ; see also English translation of this work by F. H. Hatch, 

 1892, p. 491. 



X " Mikroskopische Beschrijving van Gesteenten afkomstig van de 

 Oostkust van Borneo," Jaarb. Mijn. Nederl. Oost-Indie, 1895, vol. xxiv. 

 pp. 78-98. 



§ Mr. Everett died in London on the 18th of June, 1808, after spending 

 the greater part of his life in Borneo. He was a clever naturalist and 

 collector, having identified himself with the avifauua of the country 

 besides becoming an authority on its geology in connexion with mineral 



18* 



