FORAMINIFERA IN THE RAISED REEFS OF FUJI. 359 
Foraminifera : ORBITOLITES. 
GLOBIGERINA. 
PoLYTREMA, encrusting. 
Also rotaline forms. 
TONGA ISLANDS (FRIENDLY ISLANDS). Tonea Tasvu. — 
This is the largest of the Tonga group, and is twenty-two miles long. 
It is crescentic in shape, the convex side looking south and terminating 
in low cliffs. The concave side to the north is low-lying, and its shore- 
line represents the border of the old Jagoon. The island is entirely 
calcareous. (Cf. J. J. Lister.) 
Mt. Zion Hill, 50 ft. Contains echinoderm fragments, Gasteropoda 
and Polyzoa. 
Foraminifera : GLOBIGERINA. 
GAUDRYINA. 
? HererosTecina (or ? AMPHISTEGINA). 
CARPENTERIA. 
POLYTREMA MINIACEUM Pallas, sp. 
Also rotaline forms. 
Eva. ua is composed of two ridges running north and south, with 
a valley eroded between them. On the eastern side there is a limestone 
cliff rising in places to 1000 ft., with terraces on the projecting points. 
They are three in number in the north, and five in the south. The 
western ridge, which is also of limestone, is lower, and shows three ter- 
races. The island is not an atoll, but an eroded platform (cf. A. Agassiz). 
2d terrace, 120 ft. A few almost opaque fragments of Lithothamnion 
and the 
Foraminifera : GYPSINA. 
CaRPENTERIA. 
AMPHISTEGINIA LESSONII d’Orb, very abundant. 
Mixiouina, a number of specimens. 
Also a broad, short, textularian form. 
3d terrace, 250 ft. Halimeda, Lithothamnion, Gasteropoda. None 
of these are abundant. 
Foraminifera : PoLYTREMA. 
MILIOLINA. 
CARPENTERIA. 
Inner Valley, 600 ft. Echinoderm fragments abundant. Lithotham- 
nion and Polyzoa are present. 
