Lactoria fornasini

Scientific name Lactoria fornasini
Descriptor Bianconi
Year of description 1846
IUCN category NE
Family Ostraciidae
Genus Lactoria
Lactoria fornasini Lactoria fornasini


Lactoria fornasini is a salt water fish.

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Who is it?


  • Average size
    20 cm
  • Maximum size
    23 cm
  • Longevity
    10 year
  • Shape
    Balloon and near
  • Pattern
    drawn scales
  • Average size
    20 cm
  • Maximum size
    23 cm
  • Longevity
    10 year
  • Shape
    Balloon and near
  • Pattern
    drawn scales

How to recognize Lactoria fornasini ?

Lactoria fornasini measures around 20 cm. The dominant males can however reach 23 cm. This fish is bicolore with a predominantly bleu and marron body. The also has marron drawn scales.

Sexual dimorphism

The adult male is bigger than the female.

Behaviour & Life cycle

  • diet
    omnivorous with herbivorous tendency
  • Sociability
  • territorial
  • Way of living

Tetrodotoxin or TTX is a neurotoxin produced by bacteria. In this species, it is present in large quantities in the liver, viscera and gonads but is also found in the skin.

Females are more toxic than males, this is due to the high concentration of TTX in the ovaries.

When poisoned, TTX is fatal in more than 50% of cases. This neurotoxin acts on the pores of the sodium channels, which stops the passage of nerve impulses, resulting in partial or total paralysis. Death is most often due to respiratory paralysis triggering cardiac arrest by collapse.

Lactoria fornasini is a fish solitary naturally found at mid-depth and near the bottom. This species is omnivorous with herbivorous tendency .

n general, this species does not care much about other animals crossing its path. However, she may show some signs of aggression with conspecifics.


  • Reproduction
    ovipare qui pond en eau libre
  • Hermaphrodite

Lactoria fornasini is a fish ovipare qui pond en eau libre. always born female. Growing up, individuals will change sex to become male, this is called successive hermaphroditism of the protogynous type.

Harmless species

This species does not represent any particular threats to humans when encountered in its natural environment.

Where to find it?

What is its habitat?

Natural environment characteristics

  • Temperature
    22 - 28 °C
  • Depth
    5 - 130 m
  • Flow
    Medium and Slow

Biotope presentation

Lactoria fornasini is most often found at a depth between 5m and 130m. However, it is not impossible to find this species at other depths.

Species of the same biotope

To go further

Species of the same family

To read on the web

Sources & Contributions

Participation & Validation

The Fishipedia team and specialist contributors are committed to providing high-quality content. However, although the information comes from scientific sources or testimonials from specialists, the cards may contain inaccuracies.

Benoit Chartrer

Benoit Chartrer

Patrick Chartrer

Patrick Chartrer


Translation done with the valuable contribution of our translators, who make this information available to a wider audience. We sincerely thank them for their commitment.

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