11. The Fishes of Easter Island. 
By 
HIALMAR RENDAHBL. 
The material for this paper was brought together by Mr. K. BACKSTROM 
during the Swedish Pacific Expedition 1916—17, under the direction of Dr. C. 
SKOTTSBERG. As the visit to Easter Island was rather short (15.—30. June, 
1917), only a small collection of fishes was obtained. 
The waters in the vicinity of Easter Island have already twice before 
been visited by collectors for ichthyological purposes, viz. by the United States’ 
Expedition to the eastern tropical Pacific, 1904—05, and by the Chilean botan- 
ist F. FUENTES, April, 1911. The ichthyological results of the former expe- 
dition have been published by KENDALL and RADCLIFFE in Mem. Mus. Comp. 
Zool. Harv. College, vol. XXXV, no. 3 (1912) p. 77—172. Twenty-three 
species were recorded from Easter Island, of which two were described as 
new. In 1913 REGAN published a report on the collection of FUENTES (Proc. 
Zool. Soc. London p. 368—374); this report also contains some remarks on 
the paper by KENDALL and RADCLIFFE. FUENTES collected eleven species, 
nine of which had been mentioned by the two American authors. Five ap- 
peared to be new to science, three of which had been listed by the former 
authors but identified by them with previously described species. Further, 
REGAN found that one of the species recorded by the Americans but not 
obtained by FUENTES was different from the species to which it had been 
referred by KENDALL and RADCLIFFE and thus gave it a new specific name. 
A third account of the fishes appeared in »Contribucion al Estudio de la 
Fauna de la Isla de Pascua», by F. FUENTES (Bol. Mus. Nac. de Chile, 
Santiago 1914). The review of the fishes, p. 13—30, is mainly a translation 
of REGAN’s paper; some new figures were, however, added. 
Mr. BACKSTROM’s collection contains fifteen species. Six of these have 
not been recorded from the island before, although three belong to species 
already known from other parts of the tropical Pacific; three are new to 
science. 
The total number of sea-fishes known at present from Easter Island 
amounts to thirty-one, nine of which or more than one-fourth have not been 
found elsewhere. The isolated position of the island, situated about 2,000 
miles from the coast of South America and some 1,000 miles from the nearest 
