132 bulletin: museum of compakative zoology. 



points along the north side of the harbor of Suva (Plate 7), the islands 

 of Lambeko, Yuo, and Dra-ui mbotu, which are respectively sixty to 

 seventy feet in height, being parts uf an elevated reef extending to 

 low water mark, and now planed off. It was this elevated reef or its 

 extension westward which we ti-aced from the Singatoka Eiver to the 

 Xandi Waters (Plate 6). A short distance inland from the mouth 

 of the Siniratoka there is a blufi" of about 250 feet in height, com- 

 posed of coralliferous limestone. This blufi is the inner extension of the 

 elevated patches and limestone bluffs visible on the shore of Viti Levu. 

 1 am informed by Dr. Corney that the islands of Viwa and Asawa i lau 

 (Plate 3), to the northward of the Nandi Waters, are also remnants 

 of this elevated limestone. 



But the traces of extensive elevation are not limited to the island 

 of Yiti Levu. I found that the islands on the rim of the atoll of Xgele 

 Levu (Plata 17) consisted entirely of coralliferous limestone rock, 

 elevated to a height of over sixty feet on the larger island. The 

 northern sides of the smaller islands Taulalia and Tai ui mbeka, as 

 well as the north shore of Xsele Levu, were on the outer edire of the 

 rim of the lagoon, deep water running up to the shore line. We next 

 found that at Vanua Mbalavu (Plate 19) the northern line of islands 

 were parts of an elevated reef, forming vertical bluffs of coralliferous 

 limestone rock which had been raised by the central volcanic mass of 

 the main island to a height of 510 feet at Xgillangillah, at Avea to 600 

 feet, at the Sovu Islands to 230 feet, and on the main island to a height 

 of nearly 600 feet, while on the south of the main island the coralliferous 

 limestone bluffs are very much lower, and those of Malatta and of Susui 

 reach a height of 420 to 430 feet. Going farther west and south we find 

 at Mango vertical bluffs of an elevated coralliferous limestone of over GOO 

 feet underlaid by volcanic rocks at the sea level. At Tuvutha the lime- 

 stone bluffs are probably nearly 800 feet high. At Xaiau they are more 

 than 500 feet. At Lakemba (Plate 21) they reach a height of about 

 250 feet on the southwest side of the island, the greater part of the rest 

 of the island being of volcanic origin. On the island of Aiwa (Plate 21) 

 the elevated limestone is fully 200 feet thick. In the Oneata group the 

 highest point of the elevated bluffs is about 160 feet (Plate 21). South 

 of the volcanic island of Mothe and enclosed within the same barrier 

 on the island of Karoni (Plate 22), the reef is about 120 feet thick. 



On the three islands of the Yangasa group (Plate 22) the elevated 

 limestone attains a thickness of 240, 300, and 390 feet, and on On- 

 gea, the most southeasterly cluster we visited, it attains a thickness 



