Aru Gudgeon, Oxyeleotris aruensis (Weber 1911)
Aru Gudgeon, Oxyeleotris aruensis. Source: Neil Armstrong. License: All rights reserved
Summary:
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Cite this page as:
Martin F. Gomon, Oxyeleotris aruensis in Fishes of Australia, accessed 13 Oct 2024, https://fishesofaustralia.net.au/home/species/4153
Aru Gudgeon, Oxyeleotris aruensis (Weber 1911)
More Info
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Distribution |
Known in Australia from western Cape York (Jardine River, 11°10'S) and on eastern Cape York from the Pascoe River (12°42'S) to Rockhampton (23°50'S); also occurs in New Guinea; benthic, inhabiting freshwater rivers, creeks, lakes, and swamps, usually over mud or sand bottoms, frequently among weeds. |
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Features |
Dorsal fin VI + I, 12-14; Anal fin I, 10-12; Pectoral fin 13-16; Transverse scales Sc 16-18; Gill rakers (lower limb) 6-7; Vertebrae 27-29. Body elongate, anteriorly depressed, posteriorly compressed, depth 4.5-5.5 in SL. Head depressed, profile straight, 2.75-3.2 in SL. Snout slightly shorter than eye to as long as eye, tip before lower margin of eye. Anterior nostril in short tube. Eye diameter 4.5-6.0 in head length; interorbital 1-2 eye diameters. Lower jaw prominent, mouth oblique, reaching to below anterior part or middle of eye; jaw teeth in several rows, upper jaw with outer row slightly enlarged; outer row in lower jaw at front and a few teeth laterally of inner row enlarged. Head pores minute; some open pores around eyes and along posterior margin of preopercle. Mucous canals radiating under eye; two canals longitudinally on cheek. Scales on body ctenoid, cycloid on nape, breast and belly; longitudinal series 55-60; cycloid scales on head scaled above from dorsal fin to in front of eyes, on cheek and opercle; predorsal scales 35-40. Two dorsal fins, first dorsal fin much lower than body depth; height of second dorsal about 0.67 body depth; caudal fin rounded. Pectoral fin rounded, as long as head without snout. Pelvic fins separate, slightly shorter than pectorals. |
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Size |
To around 16 cm SL, commonly to 10 cm SL. |
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Colour |
Dark brown to pale brown, tan on belly; frequently with chevron-shaped marks on sides; 2-3 dark brown bands radiating from eye across cheek; smaller individuals with dark brown spot at base of upper caudal rays; fins dark or dusky brown; dorsal and caudal fins spotted in juveniles and some adults. |
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Feeding |
Feeds on terrestrial and aquatic insects, crustaceans, and fishes. |
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Biology |
Likely to be oviparous, benthic spawners. |
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Species Citation |
Eleotris (Oxyeleotris) aruensis Weber, M. (1911). Die Fische der Aru- und Kei-Inseln. Ein Beitrag zur Zoogeographie dieser Inseln. Abh. Senckenb. Naturforsch. Ges. 34: 1–49 figs 1–11 pls 1–2 [33, pl. 1(5)]. Aru Island, Indonesia. |
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Author |
Martin F. Gomon |
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Resources |
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Aru Gudgeon, Oxyeleotris aruensis (Weber 1911)
References
Allen, G.R. (1989). Freshwater Fishes of Australia. Neptune, New Jersey : T.F.H. Publications 240 pp. pls 1–63 [196].
Allen, G.R. & Hoese, D.F. (1980). A collection of fishes from the Jardine River, Cape York Peninsula, Australia. J. R. Soc. West. Aust. 63(2): 53–61 figs 1–2 (as Oxyeleotris sp. A).
Allen, G.R., Midgley, S.H. & Allen, M. (2002). Field Guide to the Freshwater Fishes of Australia. Perth : Western Australian Museum 394 pp.
