264 Christmas Island. 



Foraminif era : 

 Textularia rugosa (Eeuss). Yery rare. 

 Glohigerina bulloides, d'Orb. J^umerous and well preserved. 

 Carpenteria monticulariSf Carter. ^Numerous fragments. 



No. 1,032. "Top of Zigzag, 280-300 feet." A limestone 

 composed of calcareous algae and foraminifera, with a crystalline 

 calcitic cement, but in places amorphous or muddy. The organic 

 contents are Lithothamnion^ Salimeda, foraminifera, corals, echino- 

 derm plates and spines, polyzoa, and lamellibranch shells. 



Foraminifera : 

 ? Spiroloculina^ sp. 

 Glohigerina huUoides, d'Orb. Frequent. 

 Carpenteria, sp. near monticularis, Carter. Fragments. 

 Carpenteria proteifonnis, Goes. One specimen. 

 Polytrema miniaceum (Pallas). Frequent. 

 Polytrema miniaceum, var. involva, Chapman. Frequent. 



List of Species or Orhitoides. 



The species of Orhitoides found in the Tertiary rocks of 

 Christmas Island, Indian Ocean, with their distribution : — 



iJava, Sumatra, India (Scinde), 

 Persia, Bavarian Alps, Italy, 

 Spain, South of France, Antigua, 

 Jamaica, St. Thomas. 



2. 0. {Lepidocyclina) neodispansa, sp. nov. Christmas Island. 



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



4. 0. (X.) ephippioides, sp. nov. Christmas Island. 



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



6. 0. (Z.) insulce-natalis, var. incequalis, var. nov. 



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



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



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



