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Giant Seahorse (Hippocampus ingens) — Syngnathidae

Giant Seahorse

Hippocampus ingens
Family: Syngnathidae
VU · Vulnerable

The Giant Seahorse (Hippocampus ingens) is a saltwater fish of the family Syngnathidae that grows up to 30 cm.

Length
30 cm
Water
Saltwater
Depth
0.0–60.0 m
Diet
Carnivore
Behaviour
Solitary
Activity
Nocturnal
Body shape
Irregular
Substrate
Stone or rock
Danger
Harmless
Range
Eastern Pacific, from California to Peru, including the Galapagos Islands.
Edibility
Not eaten

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Description

The Pacific seahorse is the largest seahorse of the eastern Pacific. The species grows to about 30 cm and has the characteristic upright body shape with a tubular snout and a prehensile tail. It lives reef-associated down to about 60 m and clings to gorgonians and black coral, where it hunts small zooplankton and small crustaceans while well camouflaged. Its colour is variable and can adapt to the surroundings. Like all seahorses the male broods the young for about two weeks in a pouch. The species is considered Vulnerable (VU) and is listed under CITES Appendix II.

Frequently asked questions

How do you recognise the Giant Seahorse?

The Giant Seahorse has an irregular in shape body, is mainly multicoloured and shows a plain pattern. Largest seahorse of the eastern Pacific; the male carries the young in a pouch; can change colour.

Where does the Giant Seahorse live?

The Giant Seahorse lives in the sea (marine waters) and is mostly found around stony or rocky ground. Eastern Pacific, from California to Peru, including the Galapagos Islands.

How big does the Giant Seahorse get?

The Giant Seahorse grows to a maximum of about 30 cm.

Is the Giant Seahorse dangerous to humans?

No, the Giant Seahorse is harmless to humans. None required: this species is harmless to humans.

Is the Giant Seahorse edible?

The Giant Seahorse is not usually eaten.

More photos

Giant Seahorse (Hippocampus ingens) — Syngnathidae — 2
iNaturalist ((c) Craig Chaddock, some rights reserved (CC BY-NC))
Giant Seahorse (Hippocampus ingens) — Syngnathidae — 3
Wikimedia Commons — Robert Scoble (CC BY 2.0)
Giant Seahorse (Hippocampus ingens) — Syngnathidae — 4
Wikimedia Commons — Jennifer Dunne (CC BY 2.0)
Giant Seahorse (Hippocampus ingens) — Syngnathidae — 5
Lisa Bezuidenhout (CC BY-NC 4.0) via GBIF — iNaturalist
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All data

Identification

English name
Giant Seahorse verified
Scientific name
Hippocampus ingens
Family
Syngnathidae
Other names
Pacific sea horse; Pacific Seahorse; Pacific seahorse verified

Appearance

Size class
Medium verified
Max length (cm)
30.0 verified
Body shape
Irregular sourced
Dominant colour
Multicoloured sourced
Pattern
Plain sourced
Mouth position
Beak-shaped sourced
Lips
Thin sourced
Barbels
No sourced
Dorsal fins
One continuous sourced
Dorsal spines
No sourced

Habitat & distribution

Water type
Saltwater sourced
Substrate
Stone or rock sourced
Min depth (m)
0.0 verified
Max depth (m)
60.0 verified
Natural range
Eastern Pacific, from California to Peru, including the Galapagos Islands. sourced
Origin
Native sourced

Behaviour & biology

Diet
Carnivore sourced
Diet (detail)
Small zooplankton and small crustaceans sourced
Social behaviour
Solitary sourced
Territorial
No sourced
Activity
Nocturnal sourced
Reproduction
Separate sexes sourced
Sexual dimorphism
Yes sourced
Seasonality
Reproduction mainly in the warmer months; the male broods the eggs for about two weeks. sourced
Special features
Largest seahorse of the eastern Pacific; the male carries the young in a pouch; can change colour. sourced

For anglers

Edibility
Not eaten sourced
Fishing method
Fishing with natural bait (fish, shrimp, worm) or lures close to reef and rock structures. inferred
Regulations source
FishBase ↗ inferred

Safety

Danger to humans
Harmless sourced
First aid
None required: this species is harmless to humans. verified

Status & sources

Sources
FishBase via GBIF (DwC-A), CC-BY-NC 4.0

Same genus Hippocampus

More from the family Syngnathidae

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