158 "ALBATROSS" TROPICAL PACIFIC EXPEDITION. 



the bay on the western side to the east of Vaiorea Island (PI. 210, fig. 1). 

 There are a number of deep harbors extending into narrow valleys between 

 spurs of the main ridge, cutting deep indentations into the island (PI. 92, 

 fig. 1). From Fare Harbor a deep lagoon channel extends along the west 

 face to within about one mile of Tiva Point, the southern extremity of the 

 island. The lagoon is Hanked by a wide barrier reef flat. In proportion 

 to its size the interior navigation of Huaheine is comparatively extensive 

 as contrasted with Tahiti, but does not compare with that of Raiatea and 

 Tahaa, where a large vessel can enter the east pass of Teava Moa and sail 

 nearly around the east coast of Raiatea, the east coast of Tahaa, and its 

 northern and western faces as far south as Rautoauui Pass, or south of Teava 

 Moa Pass along the southern face of Raiatea, thrqugh a deep and wide 

 lagoon forming an almost continuous passage round the island from its 

 southernmost point, only a small part of the island being inaccessible by 

 this great inland passage. 



Huaheine is charactei-ized by the great development of the islands on the 

 wide barrier reef flat of the eastern and northern faces. The islands are 

 comparatively narrow south of Farerea Pass, and are separated from the 

 shore of Huaheine Iti by a deep lagoon. To the north of the pass the 

 barrier reef islands are wider, and at the northeast and northwest points 

 they occupy the whole width of the barrier reef flat (PI. 94, fig. 4), being 

 separated from the land by a very narrow lagoon. The lagoon forms an 

 impounded lake off the northern face of Huaheine Nui (PI. 210, fig. 1), simi- 

 lar to those on the northeast face of Murea. 



Huaheine might be compared in a general way with Bora Bora ; it is, 

 however, larger than the latter, the lagoon of the western side of the atoll is 

 smaller, and the reef flat of the eastern face of Bora Bora is separated from 

 the central island by a wider lagoon channel. The islands of the eastern 

 face of the barrier reef are likewise narrower, and only on the northwest 

 face do they compare in width with those of Huaheine Nui. The islands 

 on the edge of the barrier reef flat are all composed of coral sand, Vaiorea 

 Island and Tiva Point alone being spurs and an outlier of the volcanic 

 slope, which has been eroded and denuded, and upon which the barrier reef 

 flats have been formed. 



