462 
Orthophragmina. 
Previous findings in the Dutch East Indies. 
The first Orthophragmina were described by R. D. M. VerBEEK *) 
from South-East Borneo. A few years afterwards his material was 
investigated by Von Fritscn’), who determined 5 species. A short time 
after K. Martin*) reported the existence of Orbitoids with Num- 
mulites of the river Teweh in South Borneo, whilst Tu. PosEwirz 
had collected in the neighbourhood of Muara Teweh analogous 
Orthophragmina as VerBEFK had gathered in South-East Borneo ‘*). 
In recent times H. Dovvi1£*) and Irene Provate’) have again 
described Orthophragmina of South Borneo whilst the latter determined 
moreover a series of Orthophragmina of Udju Halang on the Upper- 
Makaham (Central Borneo) ”). 
Of West Borneo we know through JENNINGs *), and R. B. Newton 
and R. Horranp *) some findingplaces of Orthophragmina. 
In Java Orbitoides with rectangrlar median chambers have been 
found at the surface in the residences of Bagelen, of Djokjokarta 
and of the Preanger*’) Regencies, whilst also in a boring near 
Ngembak (Recidency of Samarang) a few Orthophragmina were 
found **). 
1) R. D. M. Verseex. Die Nummuliten des Borneo-Kalksleines. Neues Jahrbuch 
für Mineralogie etc. 1871, pp. 1—11. 
2) K. v. Fritsen. Einige eocine Foraminiferen von Borneo. Jaarboek van het 
Mijnwezen in Ned.-Indië. 1879. 1. p.p. 236—251, 
8) K. Martin. Neue Fundpunkte von Tertiärgesteinen im Indischen Archipel. 
Samml. Geol. Reichsmuseums. Leiden. (1). 1. 1881—83, p.p. 131—198. 
4) Tu. Posewirz. Das tertiäre Hügelland bei Teweh. Nat. Tijdschr. van Ned.- 
Indië XLIIL 1884, pp. 169—175. — Tu. Posewirz. Borneo. 1889. p.p.383—384. 
5) H. DouvvmrÊ. Les Foraminiféres dans le tertiaire de Bornéo. Bull. Soc. géol. 
de France. (4). 5. 1905, pp. 435—464. 
6) I. Provate. Rivista italiana di Paleontologia. 15. 1909. p.p. 65—96. 
7) I. Provate. Rivista italiana di Paleontologia. 14. Perugia 1908, p.p. 55—80. 
8) A. V. Jenninas. Geological Magazine (3). 5. 1888. p p. 530—532. 
9) R. B. Newton and P. HorLanp. Annals and Magazine of Natural History. (7). 
3. 1899, p.p. 245 —264. 
10) R. D. M. Verpeex, Tijdschr. Ned. Aardr. Genootschap. 1, Amsterdam 1876, 
p.p. 291 et seq. 
K. Martin. Samml. Geol. Reichsmuseums. Leiden. (1). 1. 1881—83. p.p. 105—130. 
R. D. M. Venpeex. Natuurkundig Tijdschrift van Nederl.-Indië. 51. 1892. p.p. 101 —138, 
R. D. M. Verpeex et R. Fennema. Description géologique de Java et Madoura. 
1896. Tome 2. 
C. Scutumpercer. Bull. Soc. géol. de France. (4). 3. 1903. p.p. 293 et seq. 
H. Dovvitté. Samml. des Geol. Reichsmus. Leiden. (1). 8. 1904 —12. p.p. 279—294. 
11) K. Martin. Samml. des Geol. Reichsmus. Leiden. (1). 3. 1887. p.p. 327 et seq. 
