Como identificar Barrigudinho

Para identificar Barrigudinho (Poecilia vivipara), observe estas características principais.

Características físicas

Formato do corpo

elongated

Coloração

Males are typically more colorful, exhibiting iridescent scales, often with blue, green, or yellow hues, and sometimes dark spots or patterns on the body and fins. Females are generally duller, ranging from olive-green to silvery-grey, with a prominent gravid spot near the anal fin when pregnant. Both sexes can display a dark lateral stripe or series of spots.

Tipo de escama

cycloid

Posição da boca

superior

Características distintivas

Sexual dimorphism: males are smaller and more colorful with a gonopodium; females are larger and plainer., Live-bearing reproduction., Robust body shape.

Nadadeira dorsal

Single dorsal fin, typically with 7-9 rays. In males, it can be slightly elongated or pointed.

Nadadeira caudal

Rounded to slightly truncate caudal fin.

Nadadeira peitoral

Small, clear pectoral fins.

Nadadeiras características

Anal fin of males is modified into a gonopodium, a rod-like structure used for internal fertilization. Females have a fan-shaped anal fin.

Dicas de identificação

1. 1

   Size and Shape

   Males reach up to 3-4 cm (1.2-1.6 inches) total length, while females can grow up to 5-6 cm (2-2.4 inches). Body is moderately robust and somewhat compressed laterally.

2. 2

   Coloration

   Look for the iridescent colors and patterns on males, and the plainer, often olive-grey, coloration of females. The gravid spot on pregnant females is a key indicator.

3. 3

   Fin Morphology

   The most definitive feature is the male's gonopodium (modified anal fin) for internal fertilization, which is absent in females.

4. 4

   Behavior

   Observe their schooling behavior and active swimming in vegetated areas. Males will often display to females.

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