Fin blades

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Fin blades
Silverfin leaf (Monodactylus argenteus)

Silverfin leaf ( Monodactylus argenteus )

Systematics
Sub-cohort : Neoteleostei
Acanthomorphata
Spinefish (Acanthopterygii)
Perch relatives (Percomorphaceae)
incertae sedis
Family : Fin blades
Scientific name
Monodactylidae
Jordan & Evermann , 1883

The fin blades or silver fin blades (Monodactylidae, Syn .: Psettidae) are a family of perch-related fish that live in the coastal tropical Indo-Pacific , on the coast of West Africa and on the coast of Australia in sea and brackish water (rarely in coastal fresh water), mostly in mangroves . The 20 to 25 cm long animals live gregariously in small groups.

features

Their body is high back, almost disc-shaped, in some species (e.g. Monodactylus sebae ) higher than long and clearly flattened on the sides. Fin blades are of a silvery, shiny color, their length is eight to 31 centimeters, depending on the species. Your scales are round or comb scales. The dorsal and anal fins are elongated, their front part is higher. The dorsal fin has five to eight fin spines, the anal fin three. The fins are covered by small scales that fall off easily. The mouth is small, the eyes relatively large, the lateral line organ follows the back line.

species

Fossil of Pasaichthys pleuronectiformis , an extinct species of fin leaf from the Eocene ( Monte Bolca )

There are two genera and six types:

literature

Web links

Commons : Fin Blades  - Collection of images, videos, and audio files