Sinuous Gudgeon, Odonteleotris macrodon (Bleeker 1853)

Other Names: Smooth-scaled Gudgeon

A Sinuous Gudgeon, Odonteleotris macrodon, from a drain in Ludmilla, Darwin, Northern Territory - caught during the wet. Source: Dave Wilson / Aquagreen. License: All rights reserved

A greyish to blackish-green gudgeon with a pale belly, 2-4 black stripes on the cheek radiating from the eye, spotted dorsal and caudal fin-rays with a violet membrane, a red margin on the anal fin, the anterior margin of the pelvic fin red, and a red spot on the upper part of the caudal-fin base.

Cite this page as:
Martin F. Gomon, Odonteleotris macrodon in Fishes of Australia, accessed 25 Feb 2020,

Sinuous Gudgeon, Odonteleotris macrodon (Bleeker 1853)

More Info


Known from the northern coast of Western Australia, to about Darwin in the Northern Territory. Elsewhere, the species occurs in the tropical east-Indo-west Pacific. Inhabits freshwater coastal rivers.


Dorsal fin VI; I, 9-10; Anal fin I, 8; Pectoral fin 17; Pelvic fin I, 5; Transverse scales 30.
Body elongate, anteriorly cylindrical, posteriorly compressed; depth 5 in SL. Head slightly depressed, length 3.5-3.75 in SL, dorsal profile between eyes slightly concave. Snout rounded, less than 2 eye diameters, tip before upper part of eye. Anterior nostril tubular. Eye 8 in head; interorbital 3 eye diameters. Mouth reaching to below posterior part of eye; teeth in several rows, outer row in upper jaw with 4-6 canines, inner row behind symphysis with curved canine; outer row in lower jaw with 4 canines. Four mucous canals radiating from underside of eye, crossed by 2 longitudinal canals on cheek; short canals radiating from top of eye, longitudinal canal on each side from snout to interorbital; lower side of head with many short transverse canals along ramus of lower jaw; longitudinal canal on each side of chin; interorbital with about 3 open pores on each side around eye.
Body and head, except snout, covered with cycloid scales; longitudinal series 90; predorsal scales 60.
First dorsal fin low, height less than half body height, third and fourth rays longest; second dorsal and anal fin higher than body, pointed posteriorly. Pectoral fin as long as postorbital part of head. Ventral fin slightly shorter. Caudal fin obtuse.


To around 13 cm SL


Blackish green above, pink below; 2-4 black stripes on cheek radiating from eye. Rays of dorsal and caudal fins spotted, membrane violet; anal fin with red margin; red spot dorsally on caudal fin base. Anterior margin of pelvic fin red.


Likely to feed on small insects, crustaceans and small fishes.


Likely to be oviparous, benthic spawners.

Species Citation

Eleotris macrodon Bleeker, 1853, Verh. Bat. Gen. 25: 104, pl. 2(1). Type locality: Hooghly River at Calcutta, India.


Martin F. Gomon

Sinuous Gudgeon, Odonteleotris macrodon (Bleeker 1853)


Bleeker, P. (1853). Nalezingen op de ichthyologische fauna van Bengalen en Hindostan. Verh. Bat. Gen. 25: 1–164 pls 1–6

Larson, H.K. & Williams, R.S. (1997). Darwin Harbour fishes: a survey and annotated checklist. Proceed. Sixth Internatl. Mar. Biol Workshop.  pp. 339–380 in Hanley, H.R., Caswell, G., Megirian, D. & Larson, H.K. (eds) The Marine Flora and Fauna of Darwin Harbour, Northern Territory, Australia.  Darwin : NT Museum (371, as Oxyeleotris sp.)

Leggett, R. & Merrick, J.R. 1987. Australian Native Fishes for Aquariums. Artarmon : J.R. Merrick Publications 241 pp. 142 figs.

Quick Facts

CAAB Code:37429035

Habitat:Freshwater coastal streams/brackish

Max Size:13 cm SL

Species Image Gallery

Species Maps

CAAB distribution map