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)

See Also

Seahorses | National Geographic

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

Are there 47 species of seahorses? ›

Seahorse: any of the species of small marine fish in the genus Hippocampus. There are at least 47 different species of seahorses.

How many seahorse species are there? ›

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

Read The Full Story ›

Are seahorses going to be 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.

What is the rarest type of 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.

See Details ›

Do pink seahorses exist? ›

Walea soft coral pygmy seahorse (Hippocampus waleananus) lives on and around soft coral. The soft coral have fat stems and this seahorse has a correspondingly long tail. They vary from pale pink to yellow.

Tell Me More ›

Did giant seahorses exist? ›

Pacific seahorses, also known as giant seahorses, Hippocampus ingen (Girard, 1858), are the the largest of the ~56 known species of seahorses in the world, reaching up to 36 cm (14 in) in length. The Genus name is derived from the Greek hippos or “horse” and campus or “sea monster.”

Read On ›

Do seahorses have a gender? ›

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 Here ›

What color is a real seahorse? ›

The basic color of the lined seahorse varies from gray, orange, brown, yellow and red to black while brown specimens tend to be paler on their front side.

Discover More ›

Is a sea horse a sea dragon? ›

Seadragons are not seahorses, but they are closely related. Together with many pipefish species, they form a group of fishes that all have long tube-like snouts and have bony plates enclosing the body. The males always take care of the young. It is fairly easy to tell seahorses and seadragons apart.

Get More Info ›

Are dried seahorses illegal? ›

Approximately 98% of the dried seahorses that were traded pre-CITES would now be illegal, sent from countries that have set bans on export of seahorses. The corollary is that about 95% of the dried seahorses traded through Hong Kong in 2016-2017 came from countries with trade suspensions, so were illegal.

Show Me More ›

Do all seahorse babies survive? ›

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.

Know More ›

Is seahorse edible? ›

Seahorses are also consumed by Indonesians, central Filipinos, and many other ethnic groups.

Show Me More ›

What is the cutest seahorse? ›

Meet the cutest seahorse out there, the pygmy seahorse. This tiny fish grows to a maximum size. of just under an inch, or about the size of a human fingernail.

See Details ›

Which seahorses are endangered? ›

For example, we know that the Cape seahorse (H. capensis) is endangered, owing to the fact that its geographical range is limited to a few South African estuaries, where human activity encroaches on its habitat.

Get More Info ›

What is the most endangered seahorse? ›

The Knysna seahorse, Hippocampus capensis, is the world's most endangered seahorse species, and it presently survives in only three estuaries on the South African south coast.

Read On ›

How many seahorses are born in one birth? ›

At the end of a gestation period usually lasting from two to four weeks, the pregnant male's abdominal area begins to undulate rhythmically, and strong muscular contractions eject from a few dozen to as many as 1,000 fully formed baby seahorses into the surrounding water.

Know More ›

All species - Project Seahorse (2024)

FAQs

Are there 47 species of seahorses? ›

Do all seahorse babies survive? ›

References