Twostripe Eviota, Eviota bifasciata Lachner & Karnella 1980


Other Names: Doublebar Goby, Striped Pygmy Goby, Striped Pygmy-goby, Twostripe Dwarf Goby, Twostripe Dwarfgoby, Twostripe Pygmy Goby

A Twostripe Eviota, Eviota bifasciata, on the Great Barrier Reef, Queensland. Source: Graham Edgar / Reef Life Survey. License: CC by Attribution

Summary:
A semi-transparent pygmygoby with two reddish to maroon stripes ending in black streaks on the upper and lower parts of the tail base (the upper streak may be indistinct), separated by a broad white midlateral stripe, and a short white stripe on the middle of the snout. Groups hover above branching and tabular corals.

Cite this page as:
Bray, D.J. 2020, Eviota bifasciata in Fishes of Australia, accessed 02 Dec 2022, https://fishesofaustralia.net.au/home/species/1343

Twostripe Eviota, Eviota bifasciata Lachner & Karnella 1980

More Info


Distribution

Great Barrier Reef and reefs in the Coral Sea, Queensland. Elsewhere, the species occurs in the west Pacific - Japan (Yaeyama Islands), Palau, Philippines, and Indonesia; east to Papua New Guinea, Vanuatu and New Caledonia; south to Australia. 
Inhabits clear coastal and sheltered outer reefs. Hovers in groups above branching or tabular corals, feeding on plankton.

Features

Dorsal fin VI + I,8-9; Anal fin I, 8-10; Pectoral fin 14-16, rays all unbranched; Longitudinal scale series 22.
Body depth 4.3-5.0 in SL; scales ctenoid, absent from head, nape and pectoral-fin base; pelvic fins separate, with a thin membrane joining bases; fourth pelvic-fin ray with 2-5 branches.

Feeding

Groups hover above branching and plate corals to feed on zooplankton in the water column.

Etymology

The specific name bifasciata is from Latin bi- (= two) and fasciata (= banded), in reference to the dark upper and lower streaks on the caudal peduncle and caudal fin.

Species Citation

Eviota bifasciata Lachner & Karnella 1980, Smithson. Contrib. Zool. 315: 108, figs 62-64. Type locality: Bararin Island, Palawan Province, Philippines. 

Author

Bray, D.J. 2020

Resources

Atlas of Living Australia

Twostripe Eviota, Eviota bifasciata Lachner & Karnella 1980

References


Allen, G.R. & Erdmann, M.V. 2012. Reef fishes of the East Indies. Perth : Tropical Reef Research 3 vols, 1260 pp.

Greenfield, D. 2016. Eviota bifasciata. The IUCN Red List of Threatened Species 2016: e.T192987A2181260. http://dx.doi.org/10.2305/IUCN.UK.2016-3.RLTS.T192987A2181260.en. Downloaded on 26 December 2016.

Greenfield, D.W. 2017. An overview of the dwarfgobies, the second most speciose coral-reef fish genus (Teleostei: Gobiidae: Eviota). Journal of the Ocean Science Foundation 29: 32-54. http://dx.doi.org/10.5281/zenodo.1115683

Greenfield, D.W. & Randall, J.E. 2016. A review of the dwarfgobies of Fiji, including descriptions of five new species (Teleostei: Gobiidae: Eviota). Journal of the Ocean Science Foundation 20: 25-75. http://doi.org/10.5281/zenodo.48268

Greenfield, D.W. & Winterbottom, R. 2016. A key to the dwarfgoby species (Teleostei: Gobiidae: Eviota) described between 1871 and 2016. Journal of the Ocean Science Foundation 24: 35–90. http://dx.doi.org/10.5281/zenodo.219620

Kuiter, R.H. 1992. Tropical Reef-Fishes of the Western Pacific, Indonesia and Adjacent Waters. Jakarta : PT Gramedia Pustaka Utama 314 pp. pls. 

Kuiter, R.H. 1996. Guide to Sea Fishes of Australia. A comprehensive reference for divers and fishermen. Sydney, NSW, Australia : New Holland Publishers xvii, 434 pp.

Kuiter R.H. & Tonozuka, T. 2001. Indonesian Reef Fishes. Part 3. Jawfishes - Sunfishes, Opistognathidae - Molidae. Melbourne : Zoonetics pp. 623–893.

Lachner, E.A. & Karnella, S.J. 1980. Fishes of the Indo-Pacific genus Eviota with descriptions of eight new species (Teleostei : Gobiidae). Smithsonian Contributions to Zoology 315: 1-127 figs 1-66 https://doi.org/10.5479/si.00810282.315

Randall, J.E., Allen, G.R. & Steene, R. 1990. Fishes of the Great Barrier Reef and Coral Sea. Bathurst : Crawford House Press 507 pp. figs. 

Randall, J.E., Allen, G.R. & Steene, R. 1997. Fishes of the Great Barrier Reef and Coral Sea. Bathurst : Crawford House Press 557 pp. figs.

Thompson, V.J., Munday, P.L. & Jones, G.P. 2007. Habitat patch size and mating system as determinants of social group size in coral-dwelling fishes. Coral Reefs 26: 165-174

Quick Facts


CAAB Code:37428116

Conservation:IUCN Least Concern

Depth:0-15 m

Habitat:Reef associated

Max Size:3 cm TL

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Species Maps

CAAB distribution map