A review of the gobiid fishes of Easter Island, with description of a new species

John E. Randall

aqua, International Journal of Ichthyology, pp. 177-190, Volume 15, Issue 4 – 15 October 2009


Only 129 species of fishes are known for Easter Island from the shore to a depth of 200 m. Six of these are gobies: Gnatholepis pascuensis, first considered as a new subspecies of G. cauerensis, here given species rank; Kelloggella disalvoi, a new species from the highest tide pools, previously identified as the Hawaiian K. oligolepis; the endemic Pascua caudilinea, a common species from tide pools to at least 40 m, never seen while diving; Priolepis psygomophilia, also cryptic, with the same unusual depth range for a goby, described from two small specimens from the Kermadec Islands and regarded as the same species at Rapa and Easter Island; Priolepis squamogena, conspicuously marked with dark-edged brown bars, described from French Polynesia and the Line Islands, and reported here as a first record for Easter Island from two juvenile specimens; and Trimma unisquamis, a wide-ranging insular species represented by 25 specimens collected from depths of 16.5-40 m. A key is provided for the Easter Island species of Gobiidae.

Full Text | PDF (368 KB)


BIRDSONG, R. S., MURDY, E. O. & PEZOLD, F. L. 1988. A study of the vertebral column and median fin osteology in gobioid fishes with comments on gobioid relationships. Bulletin of Marine Science 42 (2): 174-214.

DISALVO, L. H., RANDALL, J. E. & CEA, A. 1988. Ecological reconnaissance of the Easter Island sublittoral marine environment. National Geographic Research 4 (4): 451-473.

GOSLINE, W. A. 1959. Four new species, a new genus, and a new suborder of Hawaiian fishes. Pacific Science 13 (1): 67-77.

GREENFIELD, D. W. & RANDALL, J. E. 2004. The marine gobies of the Hawaiian Islands. Proceedings of the California Academy of Sciences 55 (27): 498-549.

HOESE, D. F. 1975. A revision of the gobiid fish genus Kelloggella. Records of the Australian Museum 29 (17): 473-484.

HOESE, D. F. & LARSON, H. A. 2005. Description of two new species of Hetereleotris (Gobiidae) from the south Pacific, with discussion of related species. Zootaxa 1096: 1-16.

JORDAN, D. S. & SEALE, A. 1906. The fishes of Samoa. Bulletin of the United States Bureau of. Fisheries (1905) 25: 273-488

KENDALL, W. C. & RADCLIFFE, L. 1912. Reports on the scientific results of the expedition to the eastern tropical Pacific, in charge of Alexander Agassiz, by the U. S. Fish Commission Steamer “Albatross,” from October, 1904 to March, 1905, Lieut. Commander L. M. Garrett, U. S. N., commanding. XXV. The shore fishes. Memoirs of the Museum of Comparative Zoölogy 35(3): 77-171.

LARSON, H. A. & BUCKLE, D. 2005. A new species of the circumtropical goby genus Gnatholepis Bleeker (Teleostei: Gobiidae: Gobionellinae) from northern Australia. The Beagle, Records of the Museums and Art Galleries of the Northern Territory 21: 67–72.

MASUDA, H., AMAOKA, K., ARAGA, C., UYENO, T. & YOSHINO, T. (eds.). 1984. The Fishes of the Japanese Ar – chipelago. Tokai University Press, Tokyo. Vol. 1 (text: xxii + 437 pp.) and vol. 2 (plates).

RANDALL, J. E. 1970. Easter Island, an ichthyological expedition. Oceans 3(3): 48-59.

RANDALL, J. E. 1999. Report on fish collections from the Pitcairn Islands. Atoll Research Bulletin, no. 461: 1-36.

RANDALL, J. E. 2003. Reef and Shore Fishes of the South Pacific. University of Hawaii Press, Honolulu. ix + 707 pp.

RANDALL, J. E. 2005. Pascua caudilinea, a new genus and species of gobiid fish (Perciformes: Gobiidae) from Easter Island. Zoological Studies 44 (1): 19-25.

RANDALL, J. E. 2006. Validation of the gobiid fish genus Pascua. aqua, International Journal of Ichthyology 12 (1): 35-38.

RANDALL, J. E., CEA, A. E. & MELÉNDEZ, C. R. 2005. Checklist of the shore and epipelagic fishes of Easter Island, with 12 new records. Boletin del Museo Nacional de Historia Natural 54: 41-55.

RANDALL, J. E. & GREENFIELD, D. W. 2001. A preliminary review of the Indo–Pacific gobiid fishes of the genus Gnatholepis. Ichthyological Bulletin of the J. L. B. Smith Institute of Ichthyology 69: 1-17.

RANDALL, J. E. & GREENFIELD, D. W. 2007. Redescription of Gnatholepis cauerensis (Bleeker, 1853), with discussion of the validity of the species. Zoologische Mededelingen (Leiden) 81 (16): 303-308.

RANDALL, J. E., SMITH, C. L. & FEINBERG, M. N. 1990. Report on fish collections from Rapa, French Polynesia. American Museum Novitates 2966: 1-42.

ROCHA, L. A., ROBERTSON, D. R., ROCHA, C. R., VAN TASSELL, J. L., CRAIG, M. T. & BOWEN, B. W. 2005. Recent invasion of the tropical Atlantic by an Indo-Pacific coral reef fish. Molecular Ecology 14: 3921-3928. SUZUKI, T. & RANDALL, J. E. 2009. Gnatholepis yoshinoi, a new gobiid fish from Okinawa. Bulletin of the National Museum of Nature and Science (Tokyo), ser. A, 35 (2): 83-88.

THACKER, C. E. 2004. Phylogeny and species boundaries in the gobiid genus Gnatholepis (Teleostei: Perciformes). Zoological Journal of the Linnaean Society 142: 573-582.

WINTERBOTTOM, R. & BURRIDGE, M. 1989. A new species of Priolepis (Pisces: Gobiidae) from the Pacific plate, with biogeographic comments. Canadian Journal of Zoology 67: 2398–2402.

WINTERBOTTOM, R. & BURRIDGE, M. 1993a. Revision of the species of Priolepis possessing a reduced transverse pattern of cheek papillae and no predorsal scales (Teleostei; Gobiidae). Canadian Journal of Zoology 71: 494-514.

WINTERBOTTOM, R. & BURRIDGE, M. 1993b. A new species of Priolepis (Teleostei; Gobiidae) from the Kermadec Islands, southwest Pacific Ocean, with comments on relationships. Canadian Journal of Zoology 71: 2077-2079.

Previous post

Pictichromis dinar, a new dottyback (Perciformes: Pseudochromidae) from Indonesia

Next post

Biometric characteristics and some biological features of natural hybrids between Nile tilapia Oreochromis niloticus and blue tilapia Oreochromis aureus in Lake Edku, Egypt

The Author



No Comment

Leave a reply