Hookcheek Dwarfgoby, Eviota ancora Lachner & Karnella 1878


A Hookcheek Dwarfgoby, Eviota ancora, at Lizard Island, Great Barrier Reef, Queenland, February 2018. Source: Anne Hoggett, Lizard Island Field Guide / http://lifg.australianmuseum.net.au/. License: CC by Attribution-NonCommercial

Summary:
A semi-transparent pygmy goby with a distinctive orange hook-shaped marking from the eye across the gill cover, a silvery-white abdomen with dark brown and orange markings, a series of dark internal dashes above the vertebral column, interspaced with silver dashes, a series of small orange spots on nape and dorsal midline interspaced with tiny white bars, and reddish-orange tubular nostrils.

Cite this page as:
Bray, D.J. 2022, Eviota ancora in Fishes of Australia, accessed 02 Dec 2022, https://fishesofaustralia.net.au/home/species/5690

Hookcheek Dwarfgoby, Eviota ancora Lachner & Karnella 1878

More Info


Distribution

Lizard Island, Great Barrier Reef, Queensland. Elsewhere the species occurs in the The West Pacific: northern Sulawesi, the Raja Ampat Islands and Maluka, (Indonesia), and the Philippines, Taiwan, and the Ryukyu Islands, Japan.
Inhabits sandy areas adjacent to reefs.

Features

Dorsal fin VI+I,8; Anal fin I,7; Pectoral fin 16, rays unbranched; Caudal fin branched rays 12, segmented rays 17; Lateral scale rows 23; Transverse scale rows 7.
Breast and pectoral-fin base scaleless; anterior spines of first dorsal fin extending just past origin of second dorsal fin; pelvic fins reaching to third anal-fin ray, 5th segmented pelvic-fin ray 10 % of 4th ray, branches on 4th pelvic-fin ray 4, 4 segments between branches; male genital papilla non-fimbriate. 

Similar Species

Differs from all other species of Eviota in having a distinctive color pattern, particularly the hook-shaped orange marking on the side of the head.

Etymology

The specific name is from the Latin ancora (= hooked), in reference to the distinctive orange hook-shaped marking on the side of the head.

Species Citation

Eviota ancora Greenfield & Suzuki  2011, Zootaxa 2812: 63, Figs. 1-3. Type locality: Iriomote-jima Islands, Uehara Beach, 24°25'03.27"N, 123°48'07.36"E, Ryukyu Islands, Japan.

Author

Bray, D.J. 2022

Resources

Atlas of Living Australia

Hookcheek Dwarfgoby, Eviota ancora Lachner & Karnella 1878

References


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. & Suzuki, T. 2011. Two new goby species of the genus Eviota from the Ryukyu Islands, Japan (Teleostei: Gobiidae). Zootaxa 2812: 63-68, https://doi.org/10.11646/zootaxa.2812.1.5

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 https://doi.org/10.5281/zenodo.219620

Larson, H. 2019. Eviota ancora. The IUCN Red List of Threatened Species 2019: e.T199653A129848016. https://dx.doi.org/10.2305/IUCN.UK.2019-3.RLTS.T199653A129848016.en. Accessed on 26 September 2022.

Senou, H., Suzuki, T., Shibukawa, K. & Yano, K. 2004. A photographic guide to the gobioid fishes of Japan. Tokyo : Heibonsha, Ltd. 534 pp. (as Eviota sp. 7)

Quick Facts


Conservation:IUCN Least Concern

Depth:6-14 m

Habitat:Reef associated

Max Size:1.4 cm SL

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Species Maps

CAAB distribution map