''Myrichthys maculosus'', commonly known as the tiger snake eel, the ocellate snake eel or the spotted snake eel, is a

species In biology, a species is the basic unit of Taxonomy (biology), classification and a taxonomic rank of an organism, as well as a unit of biodiversity. A species is often defined as the largest group of organisms in which any two individuals of ...

of fish in the family Ophichthidae, native to the

Indo-Pacific The Indo-Pacific is a vast biogeographic region of Earth. In a narrow sense, sometimes known as the Indo-West Pacific or Indo-Pacific Asia, it comprises the tropical waters of the Indian Ocean, the western and central Pacific Ocean, and the ...

. It is occasionally encountered in the aquarium trade. It grows to a length of .

Description

An elongated, snake-like fish, ''Myrichthys maculosus'' can grow to a length of , but a more common size is . The head is small with a short snout and long tubular nostrils pointing downwards. There are two rows of teeth on each jaw and two more rows on the palate. The dorsal fin has its origin just behind the head while the anal fin starts midway along the body; both run to near the tip of the tail. There are no pelvic or caudal fins, and the pectoral fins are small. This fish is cream or yellow, with large, brown or black, circular or oval spots. Young fish have a single longitudinal row of spots while large individuals have three rows.

Distribution and habitat

''M. maculosus'' is found in the tropical and warm temperate Indo-Pacific region. Its range extends from East Africa and the

Red Sea The Red Sea ( ar, البحر الأحمر - بحر القلزم, translit=Modern: al-Baḥr al-ʾAḥmar, Medieval: Baḥr al-Qulzum; or ; Coptic: ⲫⲓⲟⲙ ⲛ̀ϩⲁϩ ''Phiom Enhah'' or ⲫⲓⲟⲙ ⲛ̀ϣⲁⲣⲓ ''Phiom ǹšari''; ...

French Polynesia )Territorial motto: ( en, "Great Tahiti of the Golden Haze") , anthem = , song_type = Regional anthem , song = "Ia Ora 'O Tahiti Nui" , image_map = French Polynesia on the globe (French Polynesia centered).svg , map_alt = Location of French ...

and the

Galápagos Islands The Galápagos Islands ( es, Islas Galápagos) are an archipelago of volcanic islands in the Eastern Pacific, located around the Equator west of the mainland of South America. They form the Galápagos Province of the Republic of Ecuador, with ...

, and from Japan to eastern Australia. It is not present in

Hawaii Hawaii ( ; haw, Hawaii or ) is a state in the Western United States, located in the Pacific Ocean about from the U.S. mainland. It is the only U.S. state outside North America, the only state that is an archipelago, and the only ...

, where it is replaced by the

magnificent snake eel The magnificent snake eel (''Myrichthys magnifies''), also known as the Hawaiian spotted snake eel,seagrass Seagrasses are the only flowering plants which grow in marine environments. There are about 60 species of fully marine seagrasses which belong to four families ( Posidoniaceae, Zosteraceae, Hydrocharitaceae and Cymodoceaceae), all in the ...

beds and sandy plains, at depths down to about .

Ecology

This species is mainly

nocturnal Nocturnality is an ethology, animal behavior characterized by being active during the night and sleeping during the day. The common adjective is "nocturnal", versus diurnality, diurnal meaning the opposite. Nocturnal creatures generally have ...

but can sometimes be seen during the daytime swimming over sandy or vegetated areas. It generally spends the daytime buried in sand, digging itself in tail first. It has a well-developed sense of smell which it uses to locate its prey, which include

crustacean Crustaceans (Crustacea, ) form a large, diverse arthropod taxon which includes such animals as decapods, seed shrimp, branchiopods, fish lice, krill, remipedes, isopods, barnacles, copepods, amphipods and mantis shrimp. The crustacean gro ...

s, banded snake eels and other small fish, while they are buried in the sediment. At night, it sometimes aggregates in large numbers at locations where there is artificial lighting. Little is known about the reproduction of this species; the sexes are separate and the larvae are leaf-shaped and known as leptocephali.

References

External links

* {{Taxonbar, from=Q2140051 maculosus Fish described in 1816 Taxa named by Georges Cuvier