ANU-ANURUNGA. 129 



awash terminating in a small islet separated by a wide gap from the west- 

 ern point of the southeastern island. 



Coming up from the eastward, the long stretches of gray shingle beach, 

 dotted at the base by short reaches of beach rock ledge, formed the charac- 

 teristic features of the sea face of this atoll. There are but few cocoanuts 

 to be seen on any of the islands of Anu-Anurunga, the characteristic vege- 

 tation being made of the plants common to the group (PI. 78, fig. 3). 



On the east face of the western island the open half-submerged reef flat 

 is very wide, while outside of the coarse shingle beaches the flat is very 

 narrow, with many small boulders along the base of the beach. On the 

 western reef flat there are several extensive patches of large boulders. The 

 deepest part of the lagoon is near the eastern face. On the western side a 

 wide reef flat, the extent of which is plainly indicated by the light green 

 color of the water, extends northward from the western island far into the 

 interior of the lagoon. The gaps between the islands are shallow, yet deep 

 enough to allow a considerable amount of water to enter across them 

 into the lagoon (PI. 78, figs. 1, 2). Along the east and southwest faces 

 of the reef flat extends a well-defined narrow platform barrier reef, with 

 remarkably high Nullipore knolls on the outer edge of the reef flat, as well 

 as patches of Pocillipores (PI. 78, fig. 3). The outer edge is also deeply 

 serrated with fan-shaped indentations. 



Looking into the lagoon we can see that it is quite shallow, shallower 

 than that of Nukutipipi, there being no really blue water visible in any part 

 of the lagoon ; it all is somewhat muddy in color, or of a light green tint, 

 though there is a little darker water to be traced when looking into the 

 lagoon over the western face. 



On the wide western reef flat occur also sand bars and lines of shingle, as 

 well as the characteristic shingle and rubble bars running at right angles 

 across the reef flat, abutting on the lagoon side upon incipient sand bars or 

 sand islets (Pis. 78, figs. 1, 2). On the lagoon side the islands are edged with 

 coral sand beaches, while they are in part lined with bands of ledges on the 

 outer sea face of the islands. Some of the smaller sand islets are prominent 

 landmarks on the western reef flat. There is specially a small sand islet, 

 set well back of the reef flat, with two cocoanut trees to distinguish it. A 



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