Elongate Flounder, Ammotretis elongatus McCulloch 1914

Other Names: Elongated Flounder

An Elongate Flounder, Ammotretis elongatus, from Western Australia. Source: Chris Dowling / Fishbase . License: All rights reserved

This flounder has both eyes on its right side and is sandy in colour with very small black spots. They are found only in southern Australian waters in shallow inshore waters and in estuaries at small depths. Their name refers to the fact that they become more elongate as they grow. These fish pose no threat to humans and are harmless.

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Emily Bradley, Ammotretis elongatus in Fishes of Australia, accessed 11 Jul 2020,

Elongate Flounder, Ammotretis elongatus McCulloch 1914

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Found in coastal waters in southern Australia only. Occurring from Goose Island on the eastern side of the Bass Strait to Cockburn Sound in WA. Also found in Tasmanian waters. Regularly found in shallow inshore waters and in estuaries. Live at depths of less than 20m.


These flounders have extremely compressed bodies which are moderately elongate. They have a small head, with both eyes on the right side. Their eyes are small and are separated by a narrow space. Their snout is extended into a hook-like process projecting downwards in front of their small mouth. Their teeth are small and they have a narrow band in each jaw. They have very small scales that are rather firmly attached and are either ctenoid or cycloid on the eyed side. The scales on the blind side are mostly ctenoid, giving this side of the body a rough texture. They have a lateral line on both sides with a very slight dorsal curve above the pectoral fins which terminates posteriorly on the head. The dorsal, anal and caudal fins are separate. The dorsal fin arises on the tip of the snout and does not have elongate anterior rays. The caudal fin is rounded. Both pectoral fins are of similar form and size.


Grows to 21cm TL. Has an elongate body.


The eyed side (right side) is sandy in colour. The head, body and fins of this flounder are covered in little black spots. The blind side (left side) is whitish in colour.


Becomes more and more elongate as it grows.


Emily Bradley

Quick Facts

CAAB Code:37461007

Behaviour:Bottom dweller


Habitat:Shallow inshore waters

Max Size:21cm TL

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