252 Christmas Island. 



bent individuals arc, as one would suppose, nearer the parallel types 

 0. papyracea and 0. verheehi. 

 Average length ^ inch (12-5 mm.). Common in I^o. 549. 



No. 993. Above Coflfee Garden (see map, p. 280), in talus at 

 200 feet. 



An Orbitoidal limestone with very little interstitial material, the 

 greater part consisting of foraminifera. Some Lithothamnion and 

 shell fragments. This limestone is mottled with veins and patches 

 of a grey colour. 



Foraminifera : 

 Glohigerina hulloides, d'Orb. Bare. 

 Gypsina glolulus (Keuss). Frequent. 

 Seterostegina depressa, d'Orb. Common. 

 Orhitoides sumatrensis, Brady. Yery abundant. 



,, verheehi, !N^ewton & Holland. Rare. 



,, insulce-natalis, sp. nov. 



,, ephippioides, sp. nov. 



No. 968. Foot of first inland cliff, Smith Point, about 60 feet 

 above sea. 



A limestone partially crystalline. It is largely composed of 

 foraminifera, especially of the genus Orhitoides, and the alga 

 Lithothamnion. 



Foraminifera : 

 SpirolocuUna, sp. near S. nitida, d'Orbigny. Rare. 

 Miliolina 1 auheriana, d'Orb. Rare. 



,, trigonula (Lam.). Rare. 



,, circularis (Born.). Rare. 



,, alveoliniformis, Brady. Several. 

 Orhitolites duplex, Carpenter. Several fragments. 

 Alveolina melo (F. & M.). Yery rare. 

 Textularia rugosa (Reuss). IsTumerous. 

 Biscorhina, sp. Rare. 



Carpenteria monticularis, Carter. Fragments. 

 Gypsina inhcerens (Schultze). Often growing in alternation with 

 Lithothamnion, forming nodules. 



Amphistegina lessonii, d'Orbigny. Frequent, but small. 

 Heterostegina depressa, d'Orbigny. JSTumerous, but usually 

 fragmentary. 



Orhitoides {Lepidocydina) neodispansa, sp. nov. Rare. 



,, ,, verheeki, Newton & Holland. Rare. 



,, ,, ephippioides, sp. nov. Frequent. 



,, ,, sumatrensis, Brady. Yery common. 



,, ,, murrayana, sp. nov. (PI. XXI, 



Fig. 10.) 



