DESCRIPTION OF A LIMESTONE OF LOWER MIOCENE AGE. 297 
Distribution.—Christmas Island, Indian Ocean (Chap- 
man); Borneo (Schlumberger); German Hast Africa and 
Madagascar (R. Douvillé). 
LEPIDOCYCLINA VERBEEKI, Newton and Holland sp. 
Plate VIII, figs. 5,6; Plate IX, fig. 10. 
Orbitoides papyrucea, Brady (non Boubée), 1875, Geol. 
Mag. Dec. 1, Vol. 11, p. 535, pl. xiv, fig. 1. 
Lepidocyclina sp. g and k, Verbeek and Fennema, 1896, 
Descr. Geol. de Java et Madoura, Vol. I, pl. xi, figs. 
if — lia, ATF —150 5 Vol. 11, p: 1178. 
Orbitoides (Lepidocyclina) Verbeeki, Newton and Holland, 
1899, Ann. Mag. Nat. Hist., Ser. 7, Vol. Ill, p. 257, pl. 
ix, figs.7—-—11; pl. x, fig.1. Jones and Chapman, 1900, 
Mon. Christmas Island (Brit. Mus.), p. 245. Newton 
and Holland, 1902, Journ. Coll. Sci. Imp. Univ. Tokyo, 
Vol. xvii, Art. 6, p. 12. 
Orbitoides ? Verbeeki, M. and H., Smith, W. D., 1906, Phil. 
Journ. Sci., Vol. 1, No. 2, p. 206, pl. ii, fig. 1. 
This modification of the species, represented by form A, 
is abundant in the Papuan limestone. It is distinguished 
from L. Andrewsiana by its more lenticular shape and 
absence of large, well-marked pillars; the superficial 
papille, representing the terminations of these pillars, being 
very small, and imparting a granulate appearance to the 
exterior. Asarule the tests are regular, but occasionally 
the disc tends to become slightly flexuose, but not to so 
marked a degree as in L. Murrayana. 
Form A.—This is very common. The diameter of the 
test averages about 7mm. Verbeek’s figured specimen 
measures 4°76 mm. The megaspheres in the Papuan 
examples have a larger diameter of 690“-—1170p; whilst 
Verbeek’s specimen is only 360. 
