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

iSeahorse/iNaturalist profile

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

iSeahorse/iNaturalist profile

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

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

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

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

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

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

iSeahorse/iNaturalist profile

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

What are the 47 species of seahorses? ›

All species
  • abdominalis (Bigbelly seahorse) ...
  • algiricus (West African seahorse) ...
  • angustus (Narrow-bellied seahorse) ...
  • barbouri (Barbour's seahorse) ...
  • bargibanti (Bargibant's pygmy seahorse) ...
  • breviceps (Short-head seahorse) ...
  • camelopardalis (Giraffe seahorse) ...
  • capensis (Knysna seahorse)

What are 5 interesting 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.
Feb 10, 2024

Are seahorses asexual? ›

Sea horse reproduce sexually by internal fertilisation. After fertilisation female spray or transfer her eggs in the males brood pocket via oviduct and then male keep them in pocket until they hatch and are capable of fairly active swimming.

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.

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.

Do female seahorses exist? ›

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.

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.

Are seahorses smart? ›

They have exciting physical features; although small, they are friendly, smart, and caring. Seahorses are also one of the favourites of the marine animal kingdom!

How many baby seahorses survive? ›

It's tough being a baby seahorse. Of the hundreds of babies that the male gives birth to, only one or two will survive to become adults and have babies of their own.

Do seahorses have 2 genders? ›

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.

Do seahorses marry? ›

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 gender do 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.

Is there a pink seahorse? ›

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.

How many babies can a seahorse have? ›

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. While inside the pouch, the male supplies nutrients to his developing embryos, before giving birth to up to 1,000 babies.

What are purple seahorses called? ›

Knysna seahorse (Hippocampus capensis)

Endemic to the brackish-water estuaries of South Africa, specifically Knysna Lagoon and the Keurbooms River, these mid-sized seahorses grow to an average of 12cm and range in colour from pale green to purple-black depending on the environment and the water conditions.

How many species of seahorses are there in the world? ›

The oddly shaped and upright-swimming seahorse seems an unlikely fish. Yet more than 45 species live in coastal waters around the globe.

How many breeds of seahorses are there? ›

There are 47 different species of seahorses and 14 of those were discovered in the last eight years, including Pontoh's pygmy seahorse (Hippocampus pontohi), which was officially named in 2008.

What are the 7 levels of classification for a seahorse? ›

Seahorses. Classification: Kingdom: Animalia, Phylum: Chordata, Class: Osteichthyes, Order: Gasterosteiformes, Family: Syngnathidae, Genus: Hippocampus, and many species. Seahorses are a marine fish belonging to the genus Hippocampus of the family Syngnathidae.

What are the 3 species of sea dragon? ›

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

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