Acrocirridae is a

family Family (from la, familia) is a Social group, group of people related either by consanguinity (by recognized birth) or Affinity (law), affinity (by marriage or other relationship). The purpose of the family is to maintain the well-being of its ...

polychaete Polychaeta () is a paraphyletic class (biology), class of generally marine invertebrate, marine annelid worms, common name, commonly called bristle worms or polychaetes (). Each body segment has a pair of fleshy protrusions called parapodia that ...

worm Worms are many different distantly related bilateral animals that typically have a long cylindrical tube-like body, no limbs, and no eyes (though not always). Worms vary in size from microscopic to over in length for marine polychaete wor ...

s. Acrocirrids are

detritivore Detritivores (also known as detrivores, detritophages, detritus feeders, or detritus eaters) are heterotrophs that obtain nutrients by consuming detritus (decomposing plant and animal parts as well as feces). There are many kinds of invertebrates, ...

s (deposit feeders), catching falling particles with numerous long prostomial

tentacle In zoology, a tentacle is a flexible, mobile, and elongated organ present in some species of animals, most of them invertebrates. In animal anatomy, tentacles usually occur in one or more pairs. Anatomically, the tentacles of animals work main ...

s. There are eight known

genera Genus ( plural genera ) is a taxonomic rank used in the biological classification of living and fossil organisms as well as viruses. In the hierarchy of biological classification, genus comes above species and below family. In binomial nomenclat ...

, and at least 21 described

species 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 s ...

and subspecies within the Acrocirridae. The acrocirrids are primarily

benthic The benthic zone is the ecological region at the lowest level of a body of water such as an ocean, lake, or stream, including the sediment surface and some sub-surface layers. The name comes from ancient Greek, βένθος (bénthos), meaning "t ...

(

seabed The seabed (also known as the seafloor, sea floor, ocean floor, and ocean bottom) is the bottom of the ocean. All floors of the ocean are known as 'seabeds'. The structure of the seabed of the global ocean is governed by plate tectonics. Most of ...

-dwelling) animals, but at least two genera (''

Swima ''Swima'' is a genus of marine polychaete worms found in the ocean at depths between 1,800 and 3,700 meters (5,900 and 12,140 feet). Even if they are agile swimmers, they are often seen hanging immobile in the water column as they are neutrally b ...

'' and ''

Teuthidodrilus ''Teuthidodrilus samae'', dubbed as the squidworm, is a species of acrocirrid marine annelid worms. It is free-swimming and can be found in the deep sea water column at depths of . It feeds on marine snow and can grow to about in length and i ...

'') appear to have evolved or adapted to a

pelagic The pelagic zone consists of the water column of the open ocean, and can be further divided into regions by depth (as illustrated on the right). The word ''pelagic'' is derived . The pelagic zone can be thought of as an imaginary cylinder or wa ...

(free-swimming)

habitat In ecology, the term habitat summarises the array of resources, physical and biotic factors that are present in an area, such as to support the survival and reproduction of a particular species. A species habitat can be seen as the physical ...

Systematics

Following is a list of genera and species within the family Acrocirridae: * Genus '' Acrocirrus'' Grube, 1873 ** '' Acrocirrus aciculigerus'' Kudenov, 1976 ** '' Acrocirrus bansei'' Magalhães & Bailey-Brock, 2012 ** '' Acrocirrus columbianus'' Banse, 1979 ** '' Acrocirrus crassifilis'' Moore, 1923 ** '' Acrocirrus frontifilis'' (Grube, 1860) ** '' Acrocirrus heterochaetus'' Annenkova, 1934 ** '' Acrocirrus incisa'' Kudenov, 1975 ** '' Acrocirrus muroranensis'' Okuda, 1934 ** '' Acrocirrus occipitalis'' Banse, 1979 ** '' Acrocirrus okotensis'' Imajima, 1963 ** '' Acrocirrus trisectus'' Banse, 1969 ** '' Acrocirrus uchidai'' Okuda, 1934 ** '' Acrocirrus validus'' Marenzeller, 1879 * Genus '' Chauvinelia'' Laubier, 1974 ** '' Chauvinelia arctica'' Averincev, 1980 ** '' Chauvinelia biscayensis'' Laubier, 1974 * Genus '' Flabelligella'' Hartman, 1965 ** '' Flabelligella macrochaeta'' (Fauchald, 1972) ** '' Flabelligella mexicana'' Fauchald, 1972 ** '' Flabelligella minuta'' Hartman, 1965 ** '' Flabelligella papillata'' Hartman, 1965 * Genus '' Flabelligena'' Gillet, 2001 ** '' Flabelligena amoureuxi'' Gillet, 2001 ** '' Flabelligena biscayensis'' (Kolmer, 1985) ** '' Flabelligena cirrata'' (Hartman & Fauchald, 1971) ** '' Flabelligena erratica'' (Orensanz, 1974) ** '' Flabelligena gascognensis'' Aguirrezabalaga & Ceberio, 2006 ** '' Flabelligena mediterranea'' (Kolmer, 1985) * Genus '' Helmetophorus'' Hartman, 1978 ** '' Helmetophorus rankini'' Hartman, 1978 * Genus '' Macrochaeta'' Grube, 1850 ** '' Macrochaeta australiensis'' Kudenov, 1976 ** '' Macrochaeta bansei'' Hartmann-Schröder, 1974 ** '' Macrochaeta clavicornis'' (M. Sars, 1835) ** '' Macrochaeta helgolandica'' Friedrich, 1937 ** '' Macrochaeta leidyi'' (Verrill, 1882) ** '' Macrochaeta multipapillata'' Westheide, 1981 ** '' Macrochaeta natalensis'' Hartmann-Schröder, 1996 ** '' Macrochaeta papillosa'' Ehlers, 1913 ** '' Macrochaeta pege'' Banse, 1969 ** '' Macrochaeta polyonyx'' Eliason, 1962 ** '' Macrochaeta sexoculata'' (Webster & Benedict, 1887) ** '' Macrochaeta westheidei'' Santos & Silva, 1993 * Genus ''

'' Osborn, Haddock, Pleijel, Madin & Rouse, 2009 ** '' S. bombiviridis'' Osborn, Haddock, Pleijel, Madin & Rouse, 2009 (also known as Green Bomber Worm or Bombardier Worm),

Monterey Bay Monterey Bay is a bay of the Pacific Ocean located on the coast of the U.S. state of California, south of the San Francisco Bay Area and its major city at the south of the bay, San Jose. San Francisco itself is further north along the coast, by a ...

California California is a U.S. state, state in the Western United States, located along the West Coast of the United States, Pacific Coast. With nearly 39.2million residents across a total area of approximately , it is the List of states and territori ...

** '' Swima fulgida'' Osborn, Haddock & Rouse, 2011 ** '' Swima tawitawiensis'' Osborn, Haddock & Rouse, 2011 * Genus ''

'' Osborn, Madin & Rouse, 2011 ** '' Teuthidodrilus samae'' Osborn, Madin & Rouse, 2011 (also known as Squidworm),

Celebes Sea The Celebes Sea, (; ms, Laut Sulawesi, id, Laut Sulawesi, fil, Dagat Selebes) or Sulawesi Sea, of the western Pacific Ocean is bordered on the north by the Sulu Archipelago and Sulu Sea and Mindanao Island of the Philippines, on the east by ...

East Indian Archipelago The East Indian Archipelago is an area designated by the International Hydrographic Organization (IHO). It encompasses twelve seas, two gulfs, and one strait in the East Indies (Southeast Asia). Seas In draft 4 of the IHO's publication S-23 ''Li ...

References

External links

Terebellida {{annelid-stub

Systematics

See also

References

External links