PISCES : PLEURONECTIFORMES : ScophthalmidaeBONY FISH

Phrynorhombus norvegicus (Gunther, 1862)

Norwegian Topknot


Description: The Norwegian topknot is a left-eyed flatfish that is oval in shape and more slender than other topknot species. It is also the smallest of the topknots, reaching a maximum length of 12cm. The background colour is usually brownish with irregular darker and also pink and orange blotches.

Habitat: Like Zeugopterus punctatus this species lives amongst rocks in the shallow subtidal from 5m down to approximately 50m.

Distribution: This species is mostly found on the Atlantic coasts of Britain and Ireland however it has also been recorded from the Calf of Man in the Irish Sea.

Similar Species: This species is sometimes confused with the lemon sole (Microstomus kitt) however the latter is right-eyed. It is also similar to the topknot (Zeugopterus punctatus) and Bloch's topknot (Zeugopterus regius) but can be distinguished by its more slender appearance, smoother snout and relatively large scales.

Key Identification Features:

Distribution Map from BioMar data for Ireland - Google Earth map:  download this placemark (not got Google Earth installed?)

Distribution Map from NBN: Grid map (fast) : Interactive map (slow, requires login to view records) : National Biodiversity Network mapping facility, data for UK.


 Picton, B.E. & Morrow, C.C., 2010. [In] Encyclopedia of Marine Life of Britain and Ireland
http://www.habitas.org.uk/marinelife/species.asp?item=ZG8540

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