So bestimmen Sie Molly

Um Molly (Poecilia sp.) zu bestimmen, achten Sie auf diese Schlüsselmerkmale.

Körperliche Merkmale

Körperform

compressed

Färbung

Wild-type mollies are typically silvery-grey to olive-green with iridescent scales. Through selective breeding, a vast array of color morphs exist, including black (Black Molly), white, gold, orange, marbled, dalmatian, and various combinations. Many also exhibit metallic sheens.

Schuppentyp

cycloid

Maulstellung

superior

Besondere Merkmale

Livebearing (viviparous) reproduction, Sexual dimorphism: males are generally smaller, more colorful, and possess a modified anal fin called a gonopodium for internal fertilization., Sailfin varieties (P. latipinna, P. velifera) have greatly enlarged dorsal fins, especially in males.

Rückenflosse

Single dorsal fin, typically rounded to elongated. In sailfin varieties, it is significantly enlarged, resembling a sail.

Schwanzflosse

Caudal fin is typically rounded or lyre-shaped in some cultivated forms.

Brustflosse

Paired pectoral fins, relatively small and clear.

Auffällige Flossen

Males possess a gonopodium, a rod-like modification of the anal fin used for sperm transfer.

Bestimmungstipps

1. 1

   Body Shape and Size

   Mollies are relatively small fish, typically reaching 5-12 cm (2-5 inches) in length, depending on the species and variety. They have a somewhat stout, compressed body.

2. 2

   Fin Morphology

   Observe the dorsal fin. Short-finned mollies have a moderately sized dorsal fin, while sailfin mollies (P. latipinna, P. velifera) have a very tall, sail-like dorsal fin, particularly pronounced in males. Males also have a distinct gonopodium.

3. 3

   Coloration

   While wild types are drab, aquarium varieties exhibit a wide range of colors and patterns. Black Mollies are entirely black, while Dalmatian Mollies have black spots on a lighter background.

4. 4

   Reproduction

   Mollies are livebearers, meaning they give birth to live, free-swimming fry rather than laying eggs. This is a key characteristic of the Poeciliidae family.

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