AGASSIZ: FIJI ISLANDS AND CORAL REEFS. 23 
Makongai and Wakaya. 
Plates 37, 11°, Fig. 9 ; Plates 3”, 11°, Figs. 7, 8, and Plates 15, 55, 56. 
Makongai and Wakaya present features nearly identical. 
They are 
both long lines of narrow reefs, enclosing in the one case an irregularly 
triangular lagoon open on its northern face, and in the other an irregu- 
larly shaped parallelogram, with 
undulating sides and rounded 
corners. The island of Makongai 
is somewhat rectangular, with 
many indentations; it is of vol- 
canic nature, and attains a 
height, of nearly 900 feet. On its 
eastern face the encircling outer 
reef becomes its fringing reef at 
several points. It is separated 
by a narrow channel having a 
depth of twelve fathoms from 
Makondranga, a small island sim- 
ilar in structure to Makongai, 
about half a mile from the outer 
reef. The whole eastern encir- 
cling barrier reef is broken up 
into a number of small patches 
with boat passages between them. 
With the exception of one boat 
passage the western reef forms a 
continuous line of breakers, but 
NORTHWEST POINT OF MAKONGAT. 
on the northern side the reef patches are limited to rocks, grown over 
LEDGE OFF MAKONGAI, 
at the base with corals, judging from those we saw while passing into 
the lagoon, 
