264 Christmas Island. 



Foraminifera : 

 Textularia rugosa (Reuss). Very rare. 

 Glohigerina bulloides, d'Orb. Numerous and well preserved. 

 Carpenteria monticulai'is, Carter. Numerous fragments. 



No. 1.032. "Top of Zigzag, 2S0-300 feet." A limestone 

 composed of calcareous alga3 and foraminifera, with a crystalline 

 calcitic cement, but in places amorphous or muddj^. The organic 

 contents are Lithothamnion, Halivieda, foraminifera, corals, echino- 

 derm plates and spines, polyzoa, and lamellibranch shells. 



Foraminifera : 

 ? Spirolocidina, sp. 

 Glohigerina bulloides, d'Orb. Frequent. 

 Carpenteria, sp. near monticularis, Carter. Fragments. 

 Carpenteria proteiformis, Goes. One specimen. 

 Poh/treina nmiiaceiim (Pallas). Frequent. 

 Polytrema miniaceum, var. involva, Chapman. Frequent. 



List of Species of Orhitoides. 



The species of Orhitoides found in the Tertiary rocks of 

 Christmas Island, Indian Ocean, with their distribution : — 



I Java, Sumatra, India (Scinde), 



1. Orhitoides [Biscocyclina) \ Persia, Bavarian Alps, Italy, 



(:?/s^r/«sff (Sowerby). j Spain, South of France, Antigua, 

 I Jamaica, St. Thomas. 



2. 0. {^Lepidocyclina') neodispansa^ sp. nov. Christmas Island. 



3. 0. (Z.) verheeki, Newton & Holland. Sumatra, Borneo. 



4. 0. (Z.) ephippioides^ sp. nov. Christmas Island. 



5. 0. (Z.) insulce-natalis, sp. nov. Christmas Island. 



6. 0. (Z.) iiisulce-natalis, var. inicqualis, var. nov. 



7. 0. (Z.) sumatrensis, Brady. Sumatra, Borneo. 



8. 0. (Z.) andreivsiana, sp. nov. Christmas Island. 



9. 0. (Z.) murrayana, sp. nov. Christmas Island. 



