So bestimmen Sie Atlantic Moonfish

Um Atlantic Moonfish (Vomer setapinnis) zu bestimmen, achten Sie auf diese Schlüsselmerkmale.

Körperliche Merkmale

Körperform

compressed

Färbung

Silvery, often with a metallic sheen. Juveniles may have faint vertical bars that fade with age. Fins are typically translucent or dusky.

Schuppentyp

cycloid

Maulstellung

terminal

Besondere Merkmale

Extremely deep and laterally compressed body, almost disc-like., Steeply rising, concave head profile, giving it a 'horsehead' appearance., Long, filamentous anterior rays of the dorsal and anal fins in juveniles, which shorten with age., Small, protractile mouth.

Rückenflosse

Two dorsal fins; the first with 8 spines (the first 4-5 are very short and embedded in adults), followed by 1 spine and 21-24 soft rays in the second dorsal fin. Juveniles have elongated anterior rays.

Schwanzflosse

Deeply forked caudal fin.

Brustflosse

Long and falcate (sickle-shaped).

Auffällige Flossen

Anal fin with 2 detached spines followed by 1 spine and 18-20 soft rays. The anterior rays of the anal fin are also elongated in juveniles.

Bestimmungstipps

1. 1

   Body Shape

   Look for the extremely deep, laterally compressed, and almost disc-like body. This is its most defining characteristic.

2. 2

   Head Profile

   Observe the steeply rising, concave head profile, which gives it a unique 'horsehead' or 'lookdown' appearance.

3. 3

   Fin Elongation (Juveniles)

   In juveniles, note the very long, filamentous anterior rays of the dorsal and anal fins. These shorten significantly in adults.

4. 4

   Coloration

   The overall silvery coloration with a metallic sheen is typical. Juveniles might show faint vertical bars.

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