Top 10 Biggest Sea Horse

What if you could travel on the water with the biggest sea horse ever? Have you got this question in your mind? If yes, but wait I have something interesting for you to tell about the biggest seahorses. You will come to know how big is the biggest sea horse of various sea waters and regions. I will explain to you the different species and breeds of seahorses present in the world. So to know all the important stuff related to the biggest sea horse you will need to start reading this article quickly.  

List Of 10 Biggest Sea Horse

I have listed below the names of the 10 biggest sea horse species. 

  1. Tiger Tail Seahorse
  2. Big-belly Seahorse
  3. Flat-faced Seahorse
  4. Barbour’s Seahorse
  5. Slender Seahorse
  6. Great Seahorse
  7. Spiny Seahorse
  8. Lined Seahorse
  9. Pacific Seahorse
  10. Long-snouted Seahorse

Top 10 Biggest Sea Horse

Below is the complete description of the 10 biggest sea horse types found in the various water types. After reading it you come to know their special features and characteristics.

  1. Tiger Tail Seahorse

Tiger Tail Seahorse

The Tiger Tail Seahorse is the first in the list of the biggest seahorses with a body length from a range of 15 cm to around 19 cm long. It is scientifically called Hippocampus Comes and is found in Southeast Asia sea waters. This species usually work at night time and can stay alive for upto 2 to 5 years. It is named due to its yellow and black stripes on the body which look very similar to tiger stripes. These seahorses are mostly staying in regions of Vietnam, Malaysia, the Philippines, Thailand, and Singapore.

  1. Big-belly Seahorse

Big-belly Seahorse

A species of seahorse that can be easily identified due to its big stomach is known as Big-belly Seahorse. It can grow more than 30 cm long big belly seahorse size and is scientifically named Hippocampus abdominalis due to its big pot-shaped belly. It is one of the fastest breeds of seahorses which are good at swimming. They are always found near the coastal areas of New Zealand and Australia and have dark spots on its body.

  1. Flat-faced Seahorse

Flat-faced Seahorse

The shallow seas in Asia and Australia are the living areas for Flat-faced seahorses. It has a narrow head, with a flat face and eyes spines. Among the world’s biggest sea horse species, it is scientifically called Hippocampus trimaculatus. It appears mostly in colors like orange, golden, black, or sandy. This aquatic creature can grow upto 22 cm long and is sometimes found with alternative parallel stripes on its body.

  1. Barbour’s Seahorse

Barbour’s Seahorse

On number four here is the Barbour’s Seahorse one of the 15 cm seahorse species found in areas of Malaysia, the Philippines, Indonesia, and other Southeast Asian seawater. This seahorse appears yellow and its snout is striped like a zebra pattern. The average size of the smallest seahorse female Barbour’s Seahorse is smaller than the males. The scientific name of the Barbour’s Seahorse is Hippocampus barbouri.

  1. Slender Seahorse

Slender Seahorse

Among the longest seahorse, the Slender Seahorse is how big is the smallest seahorse type which can grow up to the length of 15 to 18 cm long. This species is named Hippocampus reidi scientifically and has a bright vibrant yellow to the orange color body. You will be able to find this species living in 50 to 70 m deep water. This seahorse species have now become endangered as it is used for medicinal and commercial purposes. You can find these seahorses in many places like Brazil, the US, China, Jamaica, Panama, etc.

  1. Great Seahorse

Great Seahorse

One of the worlds biggest sea horse breeds which are very confusing to understand is the Great Seahorse. This species has many common characteristics like other seahorses which makes it more similar to them. However, it can grow upto 20 to 25 cm long or even bigger. Its maximum body ratio is covered due to the long rings on its tail. The body color of this seahorse is pale and called with scientific name Hippocampus kelloggi. It is found in coastal regions of Japan, Asia, and East Africa.

  1. Spiny Seahorse

Spiny Seahorse

The Spiny Seahorse usually grows from a range of 13 to 17 cm long in adult age. It is scientifically called what is the biggest sea horse Hippocampus histrix and rarely found in major parts of the Indo-Pacific oceans. You will see their specimen’s color varies according to the environmental conditions mostly in Indonesia, Australia, Japan, Papua, and other such parts. This seahorse lives inside waters below 100 m or deeper. In comparison with other seahorses spiny Seahorse has a long snout.

  1. Lined Seahorse

Lined Seahorse

Another seahorse that can grow bigger than 15 cm long is the Lined Seahorse. There are many color variations of this seahorse and are found living in shallow muddy waters, seagrass beds, and estuaries. The scientific name given to this largest seahorse fossil is Hippocampus Erectus and only species of the Chesapeake Bay. You will be able to see these different colored biggest seahorses in the Atlantic Ocean from Canada to Mexico.

  1. Pacific Seahorse

Pacific Seahorse

On number nine I have kept the pacific Seahorse considered as what is the biggest known sea horse found pics/vids with its clinging tail. Its body appears yellow, green, brown, gray, or maroon and is found only inside the waters of the Pacific ocean. The keel is an important part of these seahorses to distinguish between male and female pacific seahorses. In scientific name terminology, it is called the Hippocampus ingens.

  1. Long-snouted Seahorse

Long-snouted Seahorse

A long-snouted seahorse that has the longest snout and is the world biggest sea horse compared to all other seawater horses species. This seahorse is commonly found in the Mediterranean sea and is named Hippocampus guttulatus scientifically. It lives in clear waters upto 1 to 20 m deep near coastal areas. However, it is still one of the rare and average seahorse size aquatic animals. The total length of this adult seahorse can grow upto 15 to 21 cm long.

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Are There Giant Seahorses?

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.

How Much Is A Seahorse Worth?

The average is about $100.00 for 10 dwarf horses. This is why you need to do your research to ensure that they will live before spending any money. They also require a lot of care. Don’t invest in them if you are often gone a lot.

Do Seahorses Live Long?

How long do they live? The natural lifespans of seahorses are virtually unknown, with most estimates coming from captive observations. Known lifespans for seahorse species range from about one year in the smallest species to an average of three to five years for the larger species.

How Many Hearts Do Seahorses Have?

Seahorses may look alien but they are actually fish! They use gills, have a two chambered heart, have bony plates along their bodies, and use small fins at the sides of their heads and their backs to swim.


After reading this article you got to know about the biggest sea horse breeds living inside the waters. I told you different names of sea horses that are commonly known in local regions. You understood the characteristics of the seahorse size in cm and their abilities. I explained to you about the largest sea horse’s diet and habitat briefly. Now you do not have any doubts left in your mind related to the biggest sea horse species that you just read.

What is the biggest seahorse in the world