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Harrimania
''Harrimania'' is a genus of worms belonging to the family Harrimaniidae. The species of this genus are found in Europe. Species: *'' Harrimania borealis'' *'' Harrimania kupfferi'' *''Harrimania maculosa'' *''Harrimania planktophilus ''Harrimania planktophilus'' is a marine acorn worm in the family Harrimaniidae. It lives in a burrow in sediment on the sea floor. It is only known from western Canada and was first described by Cameron in 2002. The species name is from the Gree ...'' References {{Taxonbar, from=Q3814533 Enteropneusta Hemichordate genera ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Harrimania Borealis
''Harrimania'' is a genus of worms belonging to the family Harrimaniidae. The species of this genus are found in Europe. Species: *'' Harrimania borealis'' *'' Harrimania kupfferi'' *''Harrimania maculosa'' *''Harrimania planktophilus ''Harrimania planktophilus'' is a marine acorn worm in the family Harrimaniidae. It lives in a burrow in sediment on the sea floor. It is only known from western Canada and was first described by Cameron in 2002. The species name is from the Gree ...'' References {{Taxonbar, from=Q3814533 Enteropneusta Hemichordate genera ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Harrimania Kupfferi
''Harrimania'' is a genus of worms belonging to the family Harrimaniidae. The species of this genus are found in Europe. Species: *''Harrimania borealis'' *'' Harrimania kupfferi'' *''Harrimania maculosa'' *''Harrimania planktophilus ''Harrimania planktophilus'' is a marine acorn worm in the family Harrimaniidae. It lives in a burrow in sediment on the sea floor. It is only known from western Canada and was first described by Cameron in 2002. The species name is from the Gree ...'' References {{Taxonbar, from=Q3814533 Enteropneusta Hemichordate genera ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Harrimania Maculosa
''Harrimania'' is a genus of worms belonging to the family Harrimaniidae. The species of this genus are found in Europe. Species: *'' Harrimania borealis'' *'' Harrimania kupfferi'' *'' Harrimania maculosa'' *''Harrimania planktophilus ''Harrimania planktophilus'' is a marine acorn worm in the family Harrimaniidae. It lives in a burrow in sediment on the sea floor. It is only known from western Canada and was first described by Cameron in 2002. The species name is from the Gree ...'' References {{Taxonbar, from=Q3814533 Enteropneusta Hemichordate genera ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Harrimania Planktophilus
''Harrimania planktophilus'' is a marine acorn worm in the family Harrimaniidae. It lives in a burrow in sediment on the sea floor. It is only known from western Canada and was first described by Cameron in 2002. The species name is from the Greek and translates as "lover of plankton". Description ''Harrimania planktophilus'' can grow to about 6 cm (2.5 in) long but is more typically 3.5 cm. Though generally cylindrical, the body is divided into several distinct regions, having a short cream-coloured, extendible proboscis, an orange collar and a long yellow and grey trunk. The proboscis has a dorsal groove and is cone-shaped, being rather longer than it is wide. It contains a skeleton which extends into the anterior part of the trunk. Near the front of the short, wide collar is a circumbuccal groove in which the mouth is situated. Contractions of its muscular lip cause the size and shape of the mouth to vary. There is a small brown pit where the collar meets the tru ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Harrimaniidae
Harrimaniidae is a basal family of acorn worms. A taxonomic revision was undertaken in 2010, and a number of new genera and species found in the Eastern Pacific were described. In this family the development is direct without tornaria larva, and circular muscle fibers in their trunk is missing. There is some indication that Stereobalanus may be a separate basal acorn worm lineage, sister to all remaining acorn worms. Species The following genera and species are listed in the World Register of Marine Species: . Retrieved October 17, 2011. *'' Harrimania [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Enteropneusta
The acorn worms or Enteropneusta are a hemichordate class of invertebrates consisting of one order of the same name. The closest non-hemichordate relatives of the Enteropneusta are the echinoderms. There are 111 known species of acorn worm in the world, the main species for research being '' Saccoglossus kowalevskii''. Two families—Harrimaniidae and Ptychoderidae—separated at least 370 million years ago. Until recently, it was thought that all species lived in the sediment on the seabed, subsisting as deposit feeders or suspension feeders. However, the early 21st century has seen the description of a new family, the Torquaratoridae, evidently limited to the deep sea, in which most of the species crawl on the surface of the ocean bottom and alternatively rise into the water column, evidently to drift to new foraging sites. It is assumed that the ancestors of acorn worms used to live in tubes like their relatives Pterobranchia, but that they eventually started to live a safer ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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 worms (bristle worms); for the African giant earthworm, ''Microchaetus rappi''; and for the marine nemertean worm (bootlace worm), ''Lineus longissimus''. Various types of worm occupy a small variety of parasitic niches, living inside the bodies of other animals. Free-living worm species do not live on land but instead live in marine or freshwater environments or underground by burrowing. In biology, "worm" refers to an obsolete taxon, ''vermes'', used by Carolus Linnaeus and Jean-Baptiste Lamarck for all non-arthropod invertebrate animals, now seen to be paraphyletic. The name stems from the Old English word ''wyrm''. Most animals called "worms" are invertebrates, but the term is also used for the amphibian caecilians and the slowworm '' A ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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