1897.] The Origin of the Galapagos Islands. 677 
1. Enygrus bibronii Hombr. & Jacq. Fiji, Friendly or Tonga 
and Solomon Islands (San Cristoval). 
2. Enygrus australis Montrouzier. New Britain, Solomon 
Islands, New Hebrides, Loyality Islands, Samoa. 
3. Enygrus carinatus Schneid. Pelew Islands, Ternate, 
Ceram, Amboyna, Timor Laut, Misol, New Guinea, Louisiade 
Archipelago, Duke of York Island, Solomon Islands. 
4. Enygrus asper Giinth. Misol, Salavatti, New Guinea, and 
Duke of York Island. 
The presence of Cornufer, Brachylophus and Enygrus can only 
be explained by the continental origin of the Fiji Islands. 
Here, also, the geological proof has been given.” 
In 1862 and 1865 the Fiji Islands were visited by Graeffe, 
and from 1876-78 by Th. Kleinschmidt, sent there by the 
Museum Godeffroy in Hamburg. Griiffe collected rocks on 
Viti Levu and on some small islands belonging to the Explor- 
ing Islands; Kleinschmidt on Viti Levu, Kandavu, Ono, Vatu 
Lele and Ovalau. The material has been worked up by Arthur 
Wichmann.” 
The most important result reached by the examination of 
the Kleinschmidt-collection consists in the demonstration of 
the existence on the Fiji Islands (Viti Levu) of old crystalline 
massive rocks and crystalline schists in considerable extension. 
The following rocks belonging to the chrystalline schists have 
been found: Amphibolites, Eurites, Quartz-mika-schists, gran- 
ular Limestone. Of the most important older massive rocks 
occur Granite, Quartz Porphyry, Diorite, Gabbro, Diabase, 
Foyaite, and a Sandstone similar to Itacolumit. These rocks 
have been found partially in situ, partially they have been 
picked up from the beds of different brooks and rivers. No 
trace of paleozoic and mesozoic strata have been discovered. 
The youngest massive rocks are represented only by Andesites 
and Basalts, the former very much more developed. Their 
31I have reached the conclusion about the continental origin of the Fiji Islands 
before I knew of the geological proof by Wichmann. This paper I'saw for the 
first time in June of this year in the Crerar Library. - 
Piy Arthur. Ein Beitrag zir Petrographie des Viti-Archipels. Min- 
Petragraph. spee herausgeg. von G. Tschermak. (Neue 
Folge) 5. ai Wien, 1883, p. 1 
47 
