Apterichtus gracilis

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Apterichtus gracilis
Scientific classification Red Pencil Icon.png
Kingdom: Animalia
Phylum: Chordata
Class: Actinopterygii
Order: Anguilliformes
Family: Ophichthidae
Genus: Apterichtus
Species:A. gracilis
Binomial name
Apterichtus gracilis
(Kaup, 1856)
Synonyms [1]
  • Ophisurapus gracilisKaup, 1856

Apterichtus gracilis is a species of snake eel native to the eastern Atlantic Ocean off the coast of western Africa. It is known to occur on the continental shelf in mud or sand substrates in which it makes its burrows. It has been recorded at a depth of 75 metres (246 ft). This species can reach a length of at least 31.9 centimetres (12.6 in) TL. [2]

In biology, a species ( ) is the basic unit of 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 the appropriate sexes or mating types can produce fertile offspring, typically by sexual reproduction. Other ways of defining species include their karyotype, DNA sequence, morphology, behaviour or ecological niche. In addition, paleontologists use the concept of the chronospecies since fossil reproduction cannot be examined. While these definitions may seem adequate, when looked at more closely they represent problematic species concepts. For example, the boundaries between closely related species become unclear with hybridisation, in a species complex of hundreds of similar microspecies, and in a ring species. Also, among organisms that reproduce only asexually, the concept of a reproductive species breaks down, and each clone is potentially a microspecies.

Atlantic Ocean Ocean between Europe, Africa and the Americas

The Atlantic Ocean is the second largest of the world's oceans, with an area of about 106,460,000 square kilometers. It covers approximately 20 percent of the Earth's surface and about 29 percent of its water surface area. It separates the "Old World" from the "New World".

Africa The second largest and second most-populous continent, mostly in the Northern and Eastern Hemispheres

Africa is the world's second largest and second most-populous continent, being behind Asia in both categories. At about 30.3 million km2 including adjacent islands, it covers 6% of Earth's total surface area and 20% of its land area. With 1.2 billion people as of 2016, it accounts for about 16% of the world's human population. The continent is surrounded by the Mediterranean Sea to the north, the Isthmus of Suez and the Red Sea to the northeast, the Indian Ocean to the southeast and the Atlantic Ocean to the west. The continent includes Madagascar and various archipelagos. It contains 54 fully recognised sovereign states (countries), nine territories and two de facto independent states with limited or no recognition. The majority of the continent and its countries are in the Northern Hemisphere, with a substantial portion and number of countries in the Southern Hemisphere.

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Gracilis, a Latin adjective meaning slender, graceful or gracile, may refer to :

<i>Nepenthes gracilis</i> species of plant

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Slender yellow bat species of mammal

The slender yellow bat is a species of vesper bat. It is found only in Mexico.

Elliots storm petrel species of bird

The Elliot's storm petrel is a species of seabird in the storm petrel family Hydrobatidae. The species is also known as the white-vented storm petrel. There are two subspecies, O. g. gracilis, which is found in the Humboldt Current off Peru and Chile, and O. g. galapagoensis, which is found in the waters around the Galapagos Islands. It is a sooty-black storm petrel with a white rump and a white band crossing the lower belly and extending up the midline of the belly. It has long legs which extend beyond the body in flight.

Talamancan small-eared shrew species of mammal

The Talamancan small-eared shrew is a species of mammal in the family Soricidae. It is found in Costa Rica and Panama.

Gracile shrew mole species of mammal

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Citrus gracilis, the Humpty Doo Lime or Kakadu Lime, is a straggly shrub endemic to eucalypt savannah woodlands of Northern Territory, Australia.

Apterichtus is a genus of fish in the family Ophichthidae.

The slender finless eel is a species of snake eel. It was described by Wilhelm Peters in 1877. It is a marine, subtropical eel which is known from the eastern Atlantic Ocean, including the western Mediterranean Sea, Morocco, and Cape Verde. It dwells at a depth range of 10 to 40 metres and inhabits burrows formed in sand and mud sediments on the continental shelf. Males can reach a maximum total length of 49.3 centimetres (19.4 in).

Apterichtus ansp, the Academy eel, is a species of snake eel native to the western Atlantic Ocean from North Carolina, United States through the Bahamas to Brazil. It is known to dwell down to a maximum depth of 200 metres (660 ft), and leads a benthic lifestyle, inhabiting burrows in the sand in surf areas. This species can reach a length of 54 centimetres (21 in) TL.

Apterichtus australis, the Snake eel or the South Pacific snake eel, is a species of snake eel native to the south Pacific Ocean where it occurs around the island groups of Rapa Iti, Pitcairn, Easter and the Kermadecs. It can be found at depths of from 12 to 100 metres inhabiting sandy areas near rocks or coral reefs. This species can reach a length of 40 centimetres (16 in) TL.

European finless eel species of fish

Apterichtus caecus, the European finless eel, is a species of snake eel native to the eastern Atlantic Ocean, including Balearic Island, the western Mediterranean, the Azores, and the Gulf of Guinea. It can be found on the continental shelf at depths of from 10 to 40 metres living in burrows in mud or sand. It preys on other fishes as well as benthic invertebrates. Spawning for this species in the Mediterranean has been recorded in the early summer months of May and June. This species can reach a length of 60 centimetres (24 in) TL.

Apterichtus equatorialis, the Finless eel or the Equatorial eel, is a species of snake eel native to the eastern Pacific Ocean, from the Gulf of California to Panama and around the Galapagos Islands. This species can be found at depths of from 106 to 125 metres inhabiting areas with bottoms of sand or mud. This species can reach a length of 27 centimetres (11 in) TL.

Apterichtus flavicaudus, variously known as the Orange snake eel, the Sharpnose sand eel or the Sharpnose snake eel, is a species of snake eel native to the Indian Ocean from the Seychelles to Hawaii in the Pacific Ocean. It can be found at depths of from 7 to 293 metres being particularly common in shallow coastal waters with sandy substrates in near vicinity to reefs. This species can reach a length of 80 centimetres (31 in) TL.

The Western Atlantic finless eel is an eel in the family Ophichthidae. It was described by Charles Henry Gilbert in 1891. It is a marine, subtropical eel which is known from the western and eastern Atlantic Ocean, including North Carolina, USA; the western Bahamas, Venezuela, and St. Helena Island. It dwells at a depth range of 3 to 400 metres, and forms burrows in sandy sediments on the continental shelf. Males can reach a maximum total length of 60 centimetres (24 in).

Sharpsnout snake eel species of fish

The Sharpsnout snake eel is an eel in the family Ophichthidae. It was described by Max Carl Wilhelm Weber in 1913. It is a marine, tropical eel which is known from the Indo-Western Pacific, including East Africa, the Marshall Islands, and the Hawaiian Islands. It dwells at a depth range of 10 to 25 metres, and lives in congregations in confined regions of sand sediments. Males can reach a maximum total length of 40 centimetres (16 in).

Apterichtus monodi is a species of snake eel native to the eastern Atlantic Ocean where it is found along the African coast from Senegal to Nigeria. It can be found at depths of from 80 to 150 metres where it digs burrows into sandy or muddy substrates of the continental shelf. This species can reach a length of 49.5 centimetres (19.5 in) TL.

Apterichtus moseri is a species of snake eel native to the northwestern Pacific Ocean where it is only known from Suruga Bay and the Kumano-nada Sea in Japan. It occurs at depths of from 111 to 114 metres. This species has been recorded as reaching 5 centimetres (2.0 in) TL for a female specimen.

Apterichtus orientalis is a species of snake eel native to the northwestern Pacific Ocean where it is known only from the Kii Peninsula in western Japan. It can be found at depths of from 79 to 81 metres where it occurs on substrates of sand or mud. It can reach a length of 31.8 centimetres (12.5 in) TL.

<i>Ramaria gracilis</i> species of fungus

Ramaria gracilis is a species of coral fungus in the family Gomphaceae.

References

  1. Synonyms of Apterichtus gracilis at www.fishbase.org.
  2. Froese, Rainer and Pauly, Daniel, eds. (2014). "Apterichtus gracilis" in FishBase . February 2014 version.