longsnout seahorse

Scientific name Hippocampus reidi
Descriptor Ginsburg
Year of description 1933
IUCN category NT
Family Syngnathidae
Genus Hippocampus
Hippocampus reidi Hippocampus reidi


Hippocampus reidi, commonly known as longsnout seahorse, is a salt water fish.

Who is it?


  • Average size
    16 cm
  • Maximum size
    17.5 cm
  • Longevity
    4 year
  • Pattern
  • Average size
    16 cm
  • Maximum size
    17.5 cm
  • Longevity
    4 year
  • Pattern

How to recognize the longsnout seahorse ?

The longsnout seahorse measures between 16 and 17.5 cm. This fish is multicolore with a predominantly rouge, jaune, orange, marron and beige body. The also has marron tasks.

Sexual dimorphism

Behaviour & Life cycle

  • diet
  • Sociability
    living as a couple
  • territorial
  • Way of living

The longsnout seahorse is a fish living as a couple naturally found in the vegetation. This species is carnivorous . This fish lives mainly at night. Usually, it leaves its hiding place and starts to be active once it gets dark.

n general, this species does not care much about other animals crossing its path.


  • Reproduction

The longsnout seahorse is a fish ovovivipare. This fish protects its eggs from nearby predators.

Harmless species

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

Where to find it?

Where to see this species?

What is its habitat?

Natural environment characteristics

  • Temperature
    24 - 28 °C
  • Depth
    0 - 55 m

Biotope presentation

The longsnout seahorse is most often found at a depth between 0m and 55m. 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.

Adrien Falzon

Adrien Falzon


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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Species of the same biotope

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