Foraminiferal Limestones. 245 



another form, not so numerously represented, referable to the 

 species 0. verheeki., which, it is interesting to note, Newton & 

 Holland described from their Bornean rocks as being associated 

 with 0. sumatrensis. 



Orhitoides {Lepidocyclina) verleeki, Newton & Holland. 



Orhitoides papyracea, Brady, Geol. Mag., 1875, dec. ii, vol. ii, p. 535, pi. xir, 



fig. 1. 

 Lepidocyclina, sp. g and k, Verbeek & Fennema, Descr. geol. de Java et 



Madoura, 1896, vol. i, pi. xi, figs. 173-175, 177-180 ; vol. ii, 



p. 1178. 

 Orhitoides [Lepidocyclina) verbeeici, Newton & Holland, 1899, Ann. Mag. Nat. 



Hist., ser. vii, vol. iii, p. 259, pi. x, figs. 7-12. 



One or two compressed forms of Orhitoides belonging to the 

 above species were found in association with the preceding species. 



Orhitoides {Lepidocyclina) neodispansa, sp. nov. (See p. 235.) 



A few fragmentary specimens and one transverse section of the 

 above form were found in this limestone No. 562. They appear 

 to be slightly larger, however, than the typical forms described 

 from rock-specimens Nos. 924 and 220. 



No. 521 is a white limestone, somewhat cavernous, and with 

 a pitted surface when weathered. Prom pinnacles at summit of 

 cliff, at about 500 feet, immediately above No. 562. When viewed 

 microscopically this rock varies from crystalline to finely granular 

 or amoi-phous in different parts of the same slide. The constituent 

 organisms of this limestone are Lithothamnion, many foraminifera, 

 millepores, and echinoderm spines. 



The following foraminifera were noticed in this rock : — 



^o 



Miliolina trigonula (Lamarck). 



Some typical sections of this form are present in our slides of 

 No. 521. 



Miliolina tricarinata (d'Orbigny). 



Triloculina tricarinata, d'Orbigny, 1826, Ann. Sci. Nat., vol. vii, p. 299, 



No. 7; Modele, Mo. 94. 

 Miliolina tricarinata (d'Orb.), Brady, 1884, Eep. Chall., vol. ix, p. 165, 



pi. iii, figs. 17«, 5. 



This species is a well - known Tertiary form ; it occurs in 

 specimen No. 521, associated with the previous and other somewhat 

 obscure species of Miliolifice. 



