Fish Names Starting With M: A Comprehensive List

Fish are incredible creatures that inhabit various bodies of water around the world, enchanting us with their dazzling colors, graceful movements, and diverse forms. Whether you are an avid angler or simply appreciate the beauty and variety found in the aquatic world, learning about different fish species can be a fascinating journey. In this article, we’ll explore an extensive list of fish names that begin with the letter M, providing you with an extensive resource for expanding your knowledge of fish taxonomy and diversity.

From popular aquarium fish to elusive and exotic species, the list includes a wide range of fish beginning with M. Some of these fish are well-known and easily identifiable, while others might be more obscure, waiting to be discovered by curious enthusiasts. Whether you’re interested in freshwater fish, saltwater fish, or both, this comprehensive list will introduce you to a plethora of fish species that share the common initial M.

So, why focus on fish names starting with M specifically? Well, this letter represents an array of unique and captivating fish species from around the world. It is believed that some of these fish names were inspired by the habitats they inhabit, their physical characteristics, or the regions they are indigenous to. By exploring this list, you will not only expand your knowledge but also gain a deeper appreciation for the marvelous world of fish.

Ready to dive into a compilation of fish names starting with M? Whether you’re searching for inspiration for naming a pet fish, want to impress fellow fish enthusiasts with your knowledge, or simply have a passion for marine life, this comprehensive list will surely captivate your imagination and provide you with a valuable resource for expanding your fish-related vocabulary.


The marlin is a popular game fish known for its incredible size and strength. It belongs to the billfish family and can be found in tropical and subtropical waters around the world.

The marlin is known for its long, spear-like bill and its impressive speed, making it a challenging and prized catch for anglers. It is known to reach speeds of up to 60 miles per hour.

There are several species of marlin, including the blue marlin, black marlin, white marlin, and striped marlin. Each species has its own unique characteristics and can be distinguished by its coloration and markings.

The blue marlin is one of the most sought-after species, known for its vibrant blue coloration and its ability to put up a fierce fight. It is often found in deep offshore waters and can grow to impressive sizes, with some individuals reaching lengths of over 16 feet and weighing more than 1,000 pounds.

The black marlin, on the other hand, is known for its strength and stamina. It is the largest species of marlin and can often be found in the Pacific Ocean. It is distinguished by its dark blue-black coloration and its massive size, with some individuals reaching lengths of over 14 feet and weighing over 1,500 pounds.

The white marlin is a smaller species of marlin, but it is still highly prized for its fighting ability and agility. It is known for its silvery-white coloration and its distinctive rounded dorsal fin.

The striped marlin is another popular species, known for its striped blue and silver coloration. It can be found in the Pacific, Indian, and Atlantic Oceans and is known for its acrobatic jumps and impressive speed.

Overall, marlin are highly prized by anglers for their beauty, size, and strength. They provide a thrilling challenge and are a symbol of sport fishing excellence.


The mackerel is a common saltwater fish that belongs to the family Scombridae. It is known for its characteristic slim shape and shiny skin, which is usually blue and green with dark wavy stripes. Mackerel can be found in both the Atlantic and Pacific Oceans and are popular among anglers due to their strong fighting ability.

There are several species of mackerel, including the Atlantic mackerel (Scomber scombrus), Pacific mackerel (Scomber japonicus), and Spanish mackerel (Scomberomorus maculatus). These fish are highly migratory and can travel long distances in search of food.

Mackerel are known for their oily flesh, which is rich in omega-3 fatty acids. They are often used in cooking and can be prepared in various ways, such as grilling, smoking, or pickling. In addition to being delicious, mackerel is also a good source of protein, vitamins, and minerals.

Due to their popularity as food and their importance in commercial fisheries, mackerel populations have faced some challenges in recent years. Overfishing and pollution have led to a decline in numbers, and some species of mackerel are now considered to be at risk. Efforts are being made to manage and conserve mackerel populations to ensure their long-term sustainability.

Overall, mackerel is a fascinating fish that offers both culinary delight and nutritional benefits. Whether you enjoy fishing for mackerel or savoring a delicious mackerel dish, this fish is sure to leave a lasting impression.

Mahi Mahi

Mahi Mahi, also known as dolphinfish or dorado, is a popular sport fish found in warm waters around the world. With its vibrant colors and agile nature, Mahi Mahi is highly valued by anglers for its thrilling fights and delicious meat.

Here are some key facts about Mahi Mahi:

  • Scientific name: Coryphaena hippurus
  • Habitat: Mahi Mahi can be found in tropical and subtropical waters, including the Atlantic, Indian, and Pacific Oceans.
  • Appearance: Mahi Mahi has a sleek, streamlined body with a prominent dorsal fin. Its colors range from vibrant blues and greens on the upper body to yellow and silver on the sides.
  • Size: Mahi Mahi can grow up to 6.6 feet (2 meters) in length and weigh up to 88 pounds (40 kilograms).
  • Diet: Mahi Mahi feed on a variety of prey, including fish, squid, and crustaceans.
  • Reproduction: Mahi Mahi are known for their rapid growth and early maturation. They can start reproducing at just a few months old.
  • Fishing techniques: Mahi Mahi are often targeted using trolling or live bait fishing methods. They are known for their acrobatic jumps and high-speed runs when hooked.
  • Cooking and culinary uses: Mahi Mahi has a firm, flavorful flesh that is popular for grilling, baking, or ceviche. It is often used in dishes such as fish tacos or as a substitute for traditional white fish.

Overall, Mahi Mahi is a versatile and prized fish species that offers both exciting angling opportunities and delicious dining experiences.


The mudskipper is a unique and fascinating fish that is known for its ability to live out of water. It belongs to the family Gobiidae and is found in the brackish and freshwater environments of the Indo-Pacific region. Mudskippers have adapted to their terrestrial lifestyle by possessing a specialized breathing system that allows them to extract oxygen from the air.

These fish have elongated bodies and powerful pectoral fins, which they use to propel themselves on land. They can leap and climb using their strong fins, and have been known to build burrows in the muddy substrate. Mudskippers are omnivorous and feed on a variety of small invertebrates, algae, and detritus.

One interesting behavior of mudskippers is their ability to skip across the water’s surface. They use their tail as a rudder and move in a skip-like motion, hence their name. This unique adaptation allows them to quickly escape from predators and find new feeding grounds.

While mudskippers are not commonly kept in aquariums, they are a popular subject of study for biologists and researchers due to their unique behavior and adaptations. They provide valuable insight into the evolution of fish species and the transition from aquatic to terrestrial life.

In conclusion, the mudskipper is a fascinating fish that has adapted to live in both water and on land. Its ability to breathe air and move on land make it an exceptional creature. Learning about this species can help us understand the amazing diversity of life on our planet.


The Monkfish (Lophius americanus) is a strange-looking fish that is found in the North Atlantic Ocean. It is also known as the anglerfish because of its unique method of catching prey. This fish is known for its large mouth with sharp teeth and the ability to use a long filament, which is located on top of its head, to attract and catch smaller fish.

The Monkfish is not a fast swimmer but it is an excellent ambush predator. It spends most of its time on the ocean floor, buried in the sand or mud, waiting for its prey to come near. When a smaller fish is lured close by the filament on its head, the Monkfish quickly swallows its prey whole. It has been known to eat a variety of prey, including other fish, squid, crustaceans, and even smaller monkfish.

This fish is highly prized for its meat, which is often compared to lobster or scallops in taste and texture. It is commonly used in cooking and is a popular choice for seafood dishes. The Monkfish is also known for its large size, with males typically reaching lengths of 3 feet and females reaching lengths of 4 feet or more. Its body is flat and wide, with a tan or brown color and a rough, leathery skin.

Despite its intimidating appearance, the Monkfish is not considered dangerous to humans. Its main defense mechanism is its ability to blend in with its surroundings. When threatened, it can quickly bury itself in the sand or mud, making it nearly invisible to predators. However, it is important to handle this fish with caution, as it has sharp teeth and strong jaws.

In conclusion, the Monkfish is a fascinating fish that is known for its unique appearance and hunting technique. Whether you are interested in its biology, its culinary uses, or its behavior in the wild, the Monkfish is definitely a fish worth learning more about.

Moray Eel

The Moray Eel is a fascinating and unique fish that belongs to the family Muraenidae. It is known for its long, snake-like body and formidable jaws lined with sharp teeth. Moray Eels can be found in various marine habitats, including coral reefs, rocky shores, and even sandy bottoms.

These elusive creatures are more active at night and spend their days hiding in crevices and holes in coral or rocks. They have a special adaptation called a pharyngeal jaw that allows them to extend their jaws forward to catch and swallow their prey whole. Moray Eels mainly feed on fish, squid, and crustaceans.

With their smooth and scaleless skin, Moray Eels come in a wide variety of colors, including brown, yellow, green, and black. Some species even have striking patterns and markings that help them blend in with their surroundings. Despite their appearance, Moray Eels are generally not aggressive towards humans, but they can bite if provoked or threatened.

It is important to note that the Moray Eel is not a true eel, but rather a type of fish. They are typically quite large, ranging in size from 2 to 13 feet in length, depending on the species. One of the most well-known species is the Green Moray Eel, which can reach lengths of up to 8 feet.

In conclusion, the Moray Eel is a captivating and intriguing fish with its unique appearance and behavior. Whether you encounter one while diving or see it in an aquarium, observing a Moray Eel is sure to leave a lasting impression.


The Moonfish, also known as the Opah, is a large, colorful fish that can be found in both warm and temperate waters around the world. They are known for their unique circular, disc-like shape, and their vibrant silver, blue, and red coloring.

Moonfish are powerful swimmers and are capable of reaching speeds of up to 50 miles per hour. They have a rounded, keeled body that allows them to move quickly through the water. Their large, pectoral fins make it easier for them to maneuver and change direction.

These fish are highly adaptable and are known to migrate to different depths depending on the availability of food sources. They typically feed on squid, crustaceans, and small fish. Moonfish have a specialized organ in their gills called a rete mirabile, which helps them maintain their body temperature and enhances their ability to hunt in cold waters.

Moonfish are not commonly targeted by commercial fisheries, but they are a popular target for recreational anglers due to their unique appearance and fighting capabilities. They provide a challenging and exciting fishing experience.

In conclusion, the Moonfish, or Opah, is a fascinating fish species known for its circular shape, vibrant colors, and powerful swimming abilities. Whether you are an angler or simply appreciate the beauty of marine life, encountering a Moonfish is a memorable experience.


The Mooneye, scientifically known as Hiodon tergisus, is a small freshwater fish native to North America. It belongs to the mooneye family, Hiodontidae. The Mooneye is characterized by its silver-colored body and large eyes, which are reflective and help it navigate in low light conditions.

This fish species can be found in various habitats, including rivers, lakes, and reservoirs. It prefers clear, clean water with moderate current. Mooneyes are known for their migratory behavior, often moving between different bodies of water.

The Mooneye is an important prey species for larger predatory fish, such as bass and walleye. It feeds on small insects, crustaceans, and smaller fish. Its diet may vary depending on the available food sources in its habitat.

Anglers often target Mooneye for sport fishing. It is considered a challenging fish to catch due to its fast swimming and elusive nature. The Mooneye puts up a strong fight when hooked, making it an exciting catch for anglers.

The Mooneye is also valued for its flesh, which is white, firm, and mild-tasting. It is often considered a delicacy and is consumed in various culinary preparations.

Conservation efforts for the Mooneye focus on maintaining its habitat quality and protecting water quality. Pollution, habitat degradation, and overfishing can negatively impact the Mooneye population, making conservation efforts crucial for its survival.

In conclusion, the Mooneye is a fascinating fish species found in North America. Its silver-colored body, migratory behavior, and importance as a prey species make it a subject of interest for anglers and conservationists alike.

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