All species - Project Seahorse (2024)

All species - Project Seahorse (1)

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

All species - Project Seahorse (2)

Range: West Africa

Size: up to 19 cm (7.5 in)

Red List status: Vulnerable

iSeahorse/iNaturalist profile

All species - Project Seahorse (3)

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

All species - Project Seahorse (4)

Range: Indo-Pacific

Size: up to 15 cm (5.9 in)

Red List status: Vulnerable

iSeahorse/iNaturalist profile

All species - Project Seahorse (5)

Range: Indo-Pacific

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

Red List status: Data Deficient

iSeahorse/iNaturalist profile

All species - Project Seahorse (6)

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

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All species - Project Seahorse (7)

Range: Western Indian Ocean

Size: up to 10 cm (3.9 in)

Red List status: Data Deficient

iSeahorse/iNaturalist profile

All species - Project Seahorse (8)

Other common name: Cape seahorse

Range: Southern Africa

Size: up to 12 cm (4.7 in)

Red List status: Endangered

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Range: China

Size: up to 13.3 cm (5.2 in)

Red List status: Data Deficient

iSeahorse/iNaturalist profile

All species - Project Seahorse (9)

Range: Indo-Pacific

Size: up to 2.6 cm (1 in)

Red List status: Data Deficient

iSeahorse/iNaturalist profile

All species - Project Seahorse (10)

Range: Southeast Asia

Size: up to 18.7 cm (7.4 in)

Red List status: Vulnerable

iSeahorse/iNaturalist profile

All species - Project Seahorse (11)

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

All species - Project Seahorse (12)

Range: Indo-Pacific

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

Red List status: Data Deficient

iSeahorse/iNaturalist profile

All species - Project Seahorse (13)

Other common names: northern seahorse, spotted seahorse

Range: Western Atlantic

Size: up to 19 cm (7.5 in)

Red List status: Vulnerable

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Other common name: Hawaiian seahorse

Range: Pacific (Hawaii)

Size: up to 8 cm (3.1 in)

Red List status: Least Concern

iSeahorse/iNaturalist profile

All species - Project Seahorse (14)

Other common name: spiny seahorse

Range: Europe & Mediterranean

Size: up to 18 cm (7.1 in)

Red List status: Data Deficient

iSeahorse/iNaturalist profile

All species - Project Seahorse (15)

Range: Korea & Japan

Size: up to 11.4 cm (4.5 in)

Red List status: Not Evaluated

iSeahorse/iNaturalist profile

All species - Project Seahorse (16)

Range: Mediterranean, W. Atlantic

Size: up to 15 cm (5.9 in)

Red List status: Data Deficient

iSeahorse/iNaturalist profile

All species - Project Seahorse (17)

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

All species - Project Seahorse (18)

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

All species - Project Seahorse (19)

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

See Also
The endearing, endangered seahorse

All species - Project Seahorse (20)

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

All species - Project Seahorse (21)

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

All species - Project Seahorse (22)

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

All species - Project Seahorse (23)

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

All species - Project Seahorse (24)

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

All species - Project Seahorse (25)

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

All species - Project Seahorse (26)

Other common name: Pontoh’s pygmy seahorse

Range: Indo-Pacific

Size: up to 1.7 cm (0.7 in)

Red List status: Least Concern

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Other common name: dwarf thorny seahorse

Range: New Caledonia

Red List status: Data Deficient

iSeahorse/iNaturalist profile

All species - Project Seahorse (27)

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

All species - Project Seahorse (28)

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

All species - Project Seahorse (29)

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

All species - Project Seahorse (30)

Other common name: Queensland seahorse

Range: Indo-Pacific

Size: up to 17.2 cm (6.8 in)

Red List status:Vulnerable

iSeahorse/iNaturalist profile

All species - Project Seahorse (31)

Range: W. Australia

Size: up to 20 cm (7.9 in)

Red List status: Data Deficient

iSeahorse/iNaturalist profile

All species - Project Seahorse (32)

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

All species - Project Seahorse (33)

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

All species - Project Seahorse (34)

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

All species - Project Seahorse (35)

Range: Australia

Red List status: Data Deficient

Size: up to 9.4 cm (3.7 in)

iSeahorse/iNaturalist profile

All species - Project Seahorse (36)

Range: Gulf of Mexico

Size: up to 2.5 cm (1 in)

Red List status: Least Concern

iSeahorse/iNaturalist profile

All species - Project Seahorse (2024)

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.

Learn More ›
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.

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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.

Continue Reading ›
What does Project Seahorse do? ›

Charity (Chai) Apale. ZSL's Dr Heather Koldewey and Dr Amanda Vincent founded Project Seahorse in 1996 to combat threats to seahorses across the globe. These unusual fish are vulnerable to over exploitation for traditional medicine, tourism trade and many types of fishing.

Read On ›
What is the rarest seahorse? ›

Knysna seahorse. The Knysna seahorse is the worlds most elusive and endangered seahorse.

Get More Info ›
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.

Tell Me More ›
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.

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What are purple seahorses called? ›

Bargibant's pygmy seahorse grows to a maximum length of 0.94 inches (2.4 cm) and has rounded tubercles on its body that matches the color and shape of its host gorgonian coral. This species is usually one of two colors: purple with pink tubercles or yellow with orange tubercles, depending on the host gorgonian's color.

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Did giant seahorses exist? ›

The largest seahorse species (pictured here) is Hippocampus abdominalis , or the big-bellied seahorse, which can reach more than a foot long (35 cm) and lives in the waters off Southern Australia and New Zealand.

Continue Reading ›
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.

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Are seahorses endangered in 2024? ›

At least 35% of all seahorse species are endangered, vulnerable, or near threatened, according to the IUCN Red List of Threatened Species.

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What is a seahorse daddy? ›

As a person who is openly a “seahorse” dad (a term used when referring to transgender men who carry their own children; in nature, it is the male seahorse who carries babies), I have quickly realized that the assumption for most of society (a lot of transgender people included), is that when transgender men transition, ...

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What do girl seahorses do? ›

After completing an elaborate courtship dance that may go on for hours or days, the female seahorse transfers her mature eggs into the male's brood pouch, where they are fertilized.

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What does dried seahorse do? ›

Dried seahorses are used widely in Traditional Chinese Medicine (TCM). It is thought that they can cure asthma, skin infections, impotence and can act as a natural Viagra.

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Why do males give birth in seahorses? ›

Scientist think the reason the males give birth instead of the females is because seahorse babies are often eaten by prey and so having the male give birth allows the female to create more eggs to be fertilized without having to wait to give birth herself. Sharing the labor ensures survival of the species.

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Are seahorses asexual? ›

Seahorses and their close relatives, sea dragons, are the only species in which the male gets pregnant and gives birth. Male seahorses and sea dragons get pregnant and bear young—a unique adaptation in the animal kingdom.

Get More Info Here ›
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).

Read On ›
Do female seahorses exist? ›

After their complex courting dance during a reproductive cycle, female seahorses will place their eggs into an oviduct in the male's body, which is housed in what's known as a brood pouch.

Read On ›
How big is the largest seahorse species? ›

Big-belly Seahorses, which are also known as pot-bellied seahorses, grow to a maximum length of 35 cm. Their average length of about 18 to 28 cm makes them the largest seahorse species in the world.

Read The Full Story ›

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