HADDUMMATI. 127 



dantly on the outer rim of the reef flat ; great patches of corals extend 

 over it towards the lagoon side of the flat. 



The southwest point of Kandudu is formed by a steep shingle beach 

 flanked by small boulders, pitted and honeycombed. At Kandudu we 

 found the corals on the lagoon slope of the reef flat very flourishing ; they 

 consisted of the same genera we observed before. The lagoon slope of the 

 reef flat where we anchored is steep. The patches and clusters of corals 

 extend from one or two fathoms to twelve, where the sand lanes begin 

 to separate the clusters of corals; patches of corals also extend over the reef 

 flats towards the steep beach in from one to two fathoms. The greater part 

 of the reef flat is covered with Nullipores growing over small masses or 

 fragments of dead or dying corals. 



The northern part of the western reef flat presents no feature of impor- 

 tance. It is an unbroken flat, covered at low tide, extending from Weli- 

 gandu to the pass west of Kandufuri. The chart gives an excellent idea 

 of the character of that face of the atoll. 



Haddummati. 



Plates 1, 6 ; 8 c, figs. 20, 22 ; 67-70, 77, fig. 1. 



Haddummati (PI. 6) is somewhat pear-shaped, with a huge spit forming 

 its northeastern horn. The northwestern and southwestern faces are flanked 

 by narrow reef flats, becoming wide near the southern side. On the north- 

 west side are two narrow passes and a wider one on the west side. The 

 southwestern reef flat is studded with islands, two of which, on the eastern 

 extremity of the reef flat, are large. Three large islands, well inside of the 

 wide southern pass, block its western face. The east face of Haddummati 

 is flanked by a wide reef flat covered with many large islands; this flat 

 narrows as we go north, the islands become smaller, and two narrow passes 

 separate the flats of the eastern face from the great triangular flat forming 

 the northeastern horn of Haddummati. 1 The southern part of the east face 



1 Mr. Gardiner* has indicated slight changes from the charts in Gadu Channel, on the reef flat 

 north of Waduni Pass and at Dambidu, south of Isdu. He has left the north shore of Isdu still too far 

 from the outer edge of the reef flat. 



* hoc. cit., p. 408. 



