All species - Project Seahorse (2024)

Other common names: Pot-bellied seahorse

Range: Australia & New Zealand

Size: up to 35 cm (13.8 in)

Red List status: Least Concern

iSeahorse/iNaturalist profile

Range: West Africa

Size: up to 19 cm (7.5 in)

Red List status: Vulnerable

iSeahorse/iNaturalist profile

Other common names: western Australian seahorse, western spiny seahorse

Range: Northern Australia

Size: up to 16 cm (6.3 in)

Red List status: Least Concern

iSeahorse/iNaturalist profile

Range: Indo-Pacific

Size: up to 15 cm (5.9 in)

Red List status: Vulnerable

iSeahorse/iNaturalist profile

Range: Indo-Pacific

Size: Up to 2.4 – 2.7 cm (0.9 – 1.1 in)

Red List status: Data Deficient

iSeahorse/iNaturalist profile

Other common names: knobby seahorse, short-headed seahorse, short-snouted seahorse

Range: Southern Australia

Size: up to 10 cm (3.9 in)

Red List status: Least Concern

iSeahorse/iNaturalist profile

Range: Western Indian Ocean

Size: up to 10 cm (3.9 in)

Red List status: Data Deficient

iSeahorse/iNaturalist profile

Other common name: Cape seahorse

Range: Southern Africa

Size: up to 12 cm (4.7 in)

Red List status: Endangered

iSeahorse/iNaturalist profile

Range: China

Size: up to 13.3 cm (5.2 in)

Red List status: Data Deficient

iSeahorse/iNaturalist profile

Range: Indo-Pacific

Size: up to 2.6 cm (1 in)

Red List status: Data Deficient

iSeahorse/iNaturalist profile

Range: Southeast Asia

Size: up to 18.7 cm (7.4 in)

Red List status: Vulnerable

iSeahorse/iNaturalist profile

Other common name: high-crowned seahorse

Range: Japan & South Korea

Size: up to 12.7 cm (8.7 in)

Red List status: Data Deficient

iSeahorse/iNaturalist profile

Range: Northern & Eastern Australia

Size: up to 22 cm (8.7 in)

Red List status: Least Concern

iSeahorse/iNaturalist profile

Range: Red Sea

Size: up to 2.4 cm (0.9 in)

Red List status: Data Deficient

iSeahorse/iNaturalist profile

Range: Indo-Pacific

Size: up to 2.1 – 2.4 cm (0.8 – 0.9 in)

Red List status: Data Deficient

iSeahorse/iNaturalist profile

Other common names: northern seahorse, spotted seahorse

Range: Western Atlantic

Size: up to 19 cm (7.5 in)

Red List status: Vulnerable

iSeahorse/iNaturalist profile

Other common name: Hawaiian seahorse

Range: Pacific (Hawaii)

Size: up to 8 cm (3.1 in)

Red List status: Least Concern

iSeahorse/iNaturalist profile

Other common name: spiny seahorse

Range: Europe & Mediterranean

Size: up to 18 cm (7.1 in)

Red List status: Data Deficient

iSeahorse/iNaturalist profile

Range: Korea & Japan

Size: up to 11.4 cm (4.5 in)

Red List status: Not Evaluated

iSeahorse/iNaturalist profile

Range: Mediterranean, W. Atlantic

Size: up to 15 cm (5.9 in)

Red List status: Data Deficient

iSeahorse/iNaturalist profile

Other common name: spiny seahorse

Range: W. Indian Ocean to Central Pacific

Size: up to 17 cm (6.7 in)

Red List status: Vulnerable

iSeahorse/iNaturalist profile

Other common name: giant seahorse

Range: California to Peru (Pacific Ocean)

Size: up to 31 cm (12.2 in)

Red List status: Vulnerable

iSeahorse/iNaturalist profile

Other common name: Japanese pygmy seahorse

Range: Japan

Size: up to 1.6 cm (0.6 in)

Red List status: Not Evaluated

iSeahorse/iNaturalist profile

Range: Red Sea to Pakistan

Size: up to 14 cm (5.5 in)

Red List status: Least Concern

iSeahorse/iNaturalist profile

Range: Australia

Size: up to 4.4 cm (1.7 in)

Red List status: Data Deficient

iSeahorse/iNaturalist profile

Other common name: Kellogg’s seahorse

Range: Indo-Pacific to E. Africa to China & Australia

Size: up to 28 cm (11 in)

Red List status:Vulnerable

iSeahorse/iNaturalist profile

Other common names: common seahorse, estuary seahorse, yellow seahorse, spotted seahorse

Range: Indo-Pacific to E. Africa to China & Australia

Size: up to 17 cm (6.7 in)

Red List status:Vulnerable

iSeahorse/iNaturalist profile

Range: S. Australia

Size: up to 5 cm (2 in)

Red List status: Data Deficient

iSeahorse/iNaturalist profile

Other common name:lemur-tail seahorse

Range: Japan & Korea to Thailand

Size: up to 8 cm (3.2 in)

Red List status:Vulnerable

iSeahorse/iNaturalist profile

Range: South Africa

Size: up to 2.2 cm (0.9 in)

Red List status: Not Evaluated

iSeahorse/iNaturalist profile

Range: Indo-Pacific to E. Africa to China & Australia

Size: up to 6.5 cm (2.6 in)

Red List status: Data deficient

iSeahorse/iNaturalist profile

Range: Brazil to Argentina

Size: up to 10.3 cm (4.1 in)

Red List status: Vulnerable

iSeahorse/iNaturalist profile

Range: Australia

Size: up to 22 cm (8.7 in)

Red List status: Least Concern

iSeahorse/iNaturalist profile

Other common name: Pontoh’s pygmy seahorse

Range: Indo-Pacific

Size: up to 1.7 cm (0.7 in)

Red List status: Least Concern

iSeahorse/iNaturalist profile

Other common name: dwarf thorny seahorse

Range: New Caledonia

Red List status: Data Deficient

iSeahorse/iNaturalist profile

Other common name: longsnout seahorse

Range: North Carolina (USA) to Brazil

Size: up to 17.5 cm (6.9 in)

Red List status: Near Threatened

iSeahorse/iNaturalist profile

Other common name: Satomi’s pygmy seahorse

Range: Indo-Pacific

Size: up to 1.4 cm (0.6 in)

Red List status: Data Deficient

iSeahorse/iNaturalist profile

Other common names: Shiho’s seahorse, painted seahorse

Range: Japan

Size: up to 8 cm (3.2 in)

Red List status: Least Concern

iSeahorse/iNaturalist profile

Other common name: Queensland seahorse

Range: Indo-Pacific

Size: up to 17.2 cm (6.8 in)

Red List status:Vulnerable

iSeahorse/iNaturalist profile

Range: W. Australia

Size: up to 20 cm (7.9 in)

Red List status: Data Deficient

iSeahorse/iNaturalist profile

Other common names: flat-faced seahorse, longnose seahorse, low-crowned seahorse

Range: Indo-Pacific

Size: up to 17 cm (6.7 in)

Red List status:Vulnerable

iSeahorse/iNaturalist profile

Range: Seychelles

Size: up to 6.1 cm (2.4 in)

Red List status: Data Deficient

iSeahorse/iNaturalist profile

Other common name: Walea pygmy seahorse

Range: Indonesia

Size: up to 1.8 cm (0.7 in)

Red List status: Not Evaluated

iSeahorse/iNaturalist profile

Other common names: New Holland seahorse, Sydney seahorse

Range: Solomon Islands, E. Australia

Size: up to 13 cm (5.1 in)

Red List status: Endangered

iSeahorse/iNaturalist profile

Range: Australia

Red List status: Data Deficient

Size: up to 9.4 cm (3.7 in)

iSeahorse/iNaturalist profile

Range: Gulf of Mexico

Size: up to 2.5 cm (1 in)

Red List status: Least Concern

iSeahorse/iNaturalist profile

FAQs

How many species are there for seahorses? ›

Currently, we recognize 46 species of seahorse. Browse the list to learn more about these fabulous fish.

See Details ›

Do you think that the seahorse is a fish explain your answer? ›

The seahorse is a very unusual animal. Sure, it's a fish, but it's also so un-fish-like. Along with its horse-shaped head, it has eyes like a chameleon that can move independently and a prehensile tail that, similar to a hand, can grip objects.

Explore More ›

What are 5 facts about seahorses? ›

Diving into the whimsical world of Seahorses: 10 fun facts!

Male Seahorses carry the baby during reproduction. ...
Seahorses are monogamous. ...
Seahorses are terrible swimmers. ...
They eat by suction. ...
Seahorses don't have stomachs. ...
There are over 40 different species of Seahorses. ...
Their tails have a useful tool.

More items...

Feb 10, 2024

See Details ›

How many seahorse offspring will survive? ›

After that, the offspring must fend for themselves. Large litters are necessary because only about 0.5 percent will survive to adulthood. Many, if not all, of the 47 known seahorse species—14 of which were identified only in the 21st century—are in decline worldwide.

Are there 47 species of seahorses? ›

Genus: | Hippocampus

There are at least 47 different species of seahorses.

See Details ›

Do seahorses have no gender? ›

Answer and Explanation: Seahorses are not one of those animals who change their sex. The female lays the eggs and the male carries the fertilized eggs on his back. They remain male and female.

Get More Info ›

Are seahorses asexual? ›

Expert-Verified Answer. Sea horses reproduce sexually.

Do female seahorses give birth? ›

In seahorses and pipefish, it is the male that gets pregnant and gives birth. Seahorse fathers incubate their developing embryos in a pouch located on their tail. The pouch is the equivalent of the uterus of female mammals. It contains a placenta, supporting the growth and development of baby seahorses.

See Details ›

Do seahorses mate for life? ›

Most wild seahorses (here the thorny seahorse Hippocampus histrix ) are monogamous and some species mate for life. Searching for mates can be difficult and risky since seahorses are poor swimmers, found in low densities and rely on camouflage to hide from predators.

What is a sad fact about seahorses? ›

Even with small pectoral fins that assist in steering, seahorses are sadly known to be so delicate that they can become fatally exhausted when waters get rough during storms.

Are sea horses smart? ›

And though dwarf seahorses (Hippocampus zosterae) are said to be "the slowest fish in the world," seahorses are very efficient hunters and found a clever way to spread out thousands of miles away from the probable place of their origin, near the Australian Coasts. They are impressive artists of life!

Show Me More ›

What are baby seahorses called? ›

A baby seahorse is called a “fry.” When the time is right for the babies to be born, the males will bend their bodies back and forth until a tiny seahorse pops out of the pouch.

Will seahorses go extinct? ›

The 300 or so species often have limited ranges in coastal regions and freshwater lakes and rivers around the world, and many require specialized habitats, making them susceptible to disturbance. As a result, researchers found, at least 6% of these species and up to 38% are threatened and at some risk of extinction.

How long is a seahorse pregnant? ›

A pregnant dad gestating up to 1,000 babies

This organ is called the brood pouch, in which the embryos develop. The female deposits eggs into the male's pouch after a mating dance and pregnancy lasts about 30 days.

Can you keep a single seahorse? ›

Seahorses are rather social fish, so keeping at least a pair together is best. When selecting a pair of pet seahorses, make sure they are the same gender to avoid seahorse babies (they can have up to 1,000 in one brood!). Juvenile pet seahorses may not be old enough to be identified as male or female when purchasing.

What is the rarest seahorse? ›

The rarest.

The Knysna seahorse is the worlds most elusive and endangered seahorse. This species is only found across three fragmented, local estuaries on the south coast of South Africa. Threatened with extinction and is now totally protected by law.

How many species of sea dragons are there? ›

There are three species of seadragons in the world—leafy (Phycodurus eques), weedy (Phyllopteryx taeniolatus), and the more recently discovered ruby (Phyllopteryx dewysea).

Learn More ›

Are seahorses endangered yes or no? ›

Seahorses are endangered teleost fishes under increasing human pressures worldwide.

Keep Reading ›

Do female seahorses exist? ›

A female seahorse lays dozens, sometimes hundreds, of eggs in a pouch on the male seahorse's abdomen. After seahorse moms make their eggs, they pass them over to the males to carry until the young are released.

All species - Project Seahorse (2024)

FAQs

How many species are there for seahorses? ›

Are sea horses smart? ›

References