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BULLETIN : MUSEUM OF COMPARATIVE ZOOLOGY. 



Niue (Savage Island). This island is intermediate in position be- 

 tween the Fiji and Tonga Groups. It contains three raised terraces at 

 about 80 ft., 100 ft., and 200 ft., respectively, which are composed of 

 coral rock dipping at 6° to 10°. Banks of coral debris, bedded, and 

 dipping seawards at about 40°, form the foundations of the terraces. 





Fig. 5. Singatoka, 268 ft. Amphistegina lessonii d'Orh, X 85. The organism is 

 of a pale straw-yellow color. 



315, No. 3, ht. 18 ft. This rock is very fresh and the organisms well 

 preserved, though fragmentary. Lithothamnion, echinoderms, Mollusca, 

 and the spicules of tunicates occur. 



Foraminifera : Carpenteria. 



PoLYTREMA MINIACEUM Pallas, Sp. 



Gypsina. 



Fig. 6. Niue, 53 ft. Halimeda, X about 50. 



310, No. 9, ht. 53 ft. Halimeda and alcyonariau spicules abundant. 

 Lithothamnion and tunicates are present. 



