254 Christmas Island, 



Teetiary Limestones eeom Other Localities. 



No. 347. "Higli Cliff, Sidney's Dale," south edge of narrow 

 gorge, 250 feet above sea. 



A somewhat reconstructed limestone (brecciated), with many 

 fidherent foraminifera. Probably of Upper Eocene or Oligocene 

 age, approaching Ko. 2, described above, p. 226. 



Poraminifera : 

 Planorhulina larvata, P. & J. Intergrown with Lithothamnion. 

 Carpenteria utricularis ?, Carter. Several. 



Rupertia staiilis, Wallich. Pour specimens attached to fragments 

 •of limestone coated with Lithothamnion. (PI. XXI, Pig. 11.) 

 Fuhinulina repanda (P. & M.). Common. 

 Rotalia schroeteriana, P. & J. Prequent. 

 Gypsina glolulus (Eeuss). Yery fine. Common. 

 Amphistegina lessonii, d'Orbigny. Pare. 

 Orlitoides dispansa (Sow.). One specimen. 



A 



No. 318. Between basalt and limestone, Sidney's Dale. 



A limestone with many organisms. The rock is somewhat 

 decomposed and stained with a limonitic substance. The organic 

 constituents are Lithothamnion and many foraminifera. 



Poraminif era : 

 Pulvinulina repanda (P. & M.). Prequent. 

 Rotalia schroeteriana, P. & J. Prequent. 

 Heterostegina depressa, d'Orb. Pare. 



Orhitoides {Discocyclina) dispansa (Sow.). Prequent. [One 

 fragment shows the structure of the median chambers.] 



No. 835. A limestone composed chiefly of Orhitoides, but in 

 which traces of corals occur in places. There are also fragments 

 of a branching Lithothamnion present. South of Plying Pish Cove, 

 at 550 feet. 



Poraminifera : 

 Miliolina, spp. 

 Planorhulina larvata, P. & J. Rare. 



,, mediterranensis, d'Orbigny. Pare. 



Carpenteria monticularis, Carter. Large fragments. 



,, utricularis, Carter. Large fragments. 



Amphistegina lessonii, d'Orbigny. Prequent. 

 Heterostegina depressa, d'Orbigny. Rare. 



Orhitoides {Lepidocyclina) i7isules-natalis, sp. nov., var. incBqualis, 

 nov. (PI. XXI, Pig. 12.) 



