This is a polynemid fish. Not all of the important characters are visible, but it may be Galeoides decadactylus (Bloch 1795). That species was previously known from the Mediterranean Sea and the eastern Atlantic from Morocco to Namibia, so this would be a range extension.

For identification, I would recommend the key provided by Motomura 2016.

Reference:

Motomura, H. 2016. Polynemidae. Pp. 2621-2628. In: Carpenter, K. E. and N. De Angelis (eds.): The living marine resources of the Eastern Central Atlantic. Volume 4. Bony fishes part 2 (Perciformes to Tetradontiformes) and Sea turtles. FAO Species Identification Guide for Fishery Purposes, Rome, FAO. [Orders and families by individual authors.]. i-xiii + 2343-3124.

Good morning from Spain, Jan.

If you want you can sign up at the webside inaturalist. There you will find the scientific name of this and other species of fish and another animals.

http://www.inaturalist.org/

Thank you

This is a polynemid fish. Not all of the important characters are visible, but it may be Galeoides decadactylus (Bloch 1795). That species was previously known from the Mediterranean Sea and the eastern Atlantic from Morocco to Namibia, so this would be a range extension.

For identification, I would recommend the key provided by Motomura 2016.

Reference:

Motomura, H. 2016. Polynemidae. Pp. 2621-2628. In: Carpenter, K. E. and N. De Angelis (eds.): The living marine resources of the Eastern Central Atlantic. Volume 4. Bony fishes part 2 (Perciformes to Tetradontiformes) and Sea turtles. FAO Species Identification Guide for Fishery Purposes, Rome, FAO. [Orders and families by individual authors.]. i-xiii + 2343-3124.

Great

Thanks a lot for your help

jan

Hi Jan, I also come to the same species than Ronald Fricke. I found the species in the book :

SERET B. 2011. POISSONS DE MER DE L'OUEST AFRICAIN TROPICAL. IRD Éditions INSTITUT DE RECHERCHE POUR LE DÉVELOPPEMENT,  Marseille 461p.

I enclosed a copy of the article for you.

Cheers

Grand merci Mario

Good afternoon

After determination we found out that the captured species is: Eleutheronema tetradactylum. This is the first record in the Zeeschelde. How this fish arrived here is an enigma.