Come identificare Molly

Per identificare Molly (Poecilia latipinna o Poecilia sphenops), osserva queste caratteristiche chiave.

Caratteristiche fisiche

Forma del corpo

compressed

Colorazione

Cultivated 'Golden Molly' varieties exhibit a vibrant yellow to orange-gold coloration, often with iridescent scales. Wild types are typically silvery-gray to olive-green, sometimes with dark spots or blotches. Males are generally more colorful and possess a modified anal fin (gonopodium).

Tipo di squame

cycloid

Posizione della bocca

superior

Caratteristiche distintive

Livebearing reproduction, Sexual dimorphism (males have a gonopodium), Varied fin shapes and body colors due to selective breeding, Ability to tolerate a range of salinities

Pinna dorsale

Poecilia latipinna has a large, sail-like dorsal fin with 13-14 rays, especially prominent in males. Poecilia sphenops has a shorter, more rounded dorsal fin with 8-10 rays. Cultivated varieties can have varying dorsal fin sizes.

Pinna caudale

Rounded to lyre-shaped, depending on the specific strain.

Pinna pettorale

Paired, typically clear or slightly colored.

Pinne distintive

Males possess a gonopodium, a modified anal fin used for internal fertilization.

Consigli per l'identificazione

1. 1

   Dorsal Fin Size

   To distinguish between wild P. latipinna and P. sphenops, observe the dorsal fin. P. latipinna has a significantly larger, sail-like dorsal fin (13-14 rays), while P. sphenops has a shorter, more rounded dorsal fin (8-10 rays). This distinction can be blurred in hybrid or selectively bred aquarium strains.

2. 2

   Gonopodium

   Males of both species possess a distinct gonopodium, a rod-like modification of the anal fin used for reproduction. Females have a fan-shaped anal fin.

3. 3

   Coloration

   While 'Golden Molly' refers to a specific color morph, wild P. latipinna often has rows of dark spots on a silvery-gray body, whereas wild P. sphenops is typically more uniformly olive-green to gray.

4. 4

   Body Shape

   Both species have a moderately compressed body, but P. latipinna tends to be slightly more robust and can grow larger.

Esplora Molly