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Heterochaerus Carvalhoi
''Heterochaerus'' is a genus of worms belonging to the family Convolutidae. The species of this genus are found in Australia and Central America. Species: *''Heterochaerus australis'' *''Heterochaerus blumi ''Heterochaerus'' is a genus of worms belonging to the family Convolutidae. The species of this genus are found in Australia and Central America. Species: *''Heterochaerus australis ''Heterochaerus'' is a genus of worms belonging to the fa ...'' *'' Heterochaerus carvalhoi'' *'' Heterochaerus langerhansi'' *'' Heterochaerus sargassi'' References {{Taxonbar, from=Q4993230 Acoelomorphs Taxa named by William Aitcheson Haswell ...
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William Aitcheson Haswell
William Aitcheson Haswell (5 August 1854 – 24 January 1925) was a Scottish-Australian zoologist specialising in crustaceans, winner of the 1915 Clarke Medal. His zoological author abbreviation is Haswell. Taxa authored by him are given in :Taxa named by William Aitcheson Haswell and bthis query __NOTOC__ Early life Haswell was born at Gayfield House, Edinburgh, son of James Haswell, banker, and his wife Margaret, ''née'' Cranston. Haswell studied at the Edinburgh Institution and the University of Edinburgh (M.A., 1877; BSc, 1878; D.Sc., 1887) where he won seven medals, and at the conclusion of his course gained the Bell-Baxter scholarship as the most distinguished natural science student of his year. Amongst his teachers were Thomas Henry Huxley, Archibald Geikie and Charles Wyville Thomson. He qualified for the MA and BSc degrees in 1878, and immediately afterwards, for reasons of health, went on a voyage to Australia. Career Haswell arrived in Sydney in late 1878 and s ...
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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 ...
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Convolutidae
Convolutidae is a family of acoels. It contains more than a third of all known acoel species.Turbellarian taxonomic database
2006.


Description

The family Convolutidae includes acoels with a ventral mouth opening and a body-wall musculature composed both dorsally and ventrally by circular, longitudinal, and longitudinal crossover muscle fibers. The ventral body wall also has a group of U-shaped fibers. Most species are s with

Heterochaerus Australis
''Heterochaerus'' is a genus of worms belonging to the family Convolutidae. The species of this genus are found in Australia and Central America. Species: *'' Heterochaerus australis'' *'' Heterochaerus blumi'' *'' Heterochaerus carvalhoi'' *'' Heterochaerus langerhansi'' *'' Heterochaerus sargassi'' References {{Taxonbar, from=Q4993230 Acoelomorphs Taxa named by William Aitcheson Haswell ...
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Heterochaerus Blumi
''Heterochaerus'' is a genus of worms belonging to the family Convolutidae. The species of this genus are found in Australia and Central America. Species: *''Heterochaerus australis ''Heterochaerus'' is a genus of worms belonging to the family Convolutidae. The species of this genus are found in Australia and Central America. Species: *'' Heterochaerus australis'' *'' Heterochaerus blumi'' *'' Heterochaerus carvalhoi'' ...'' *'' Heterochaerus blumi'' *'' Heterochaerus carvalhoi'' *'' Heterochaerus langerhansi'' *'' Heterochaerus sargassi'' References {{Taxonbar, from=Q4993230 Acoelomorphs Taxa named by William Aitcheson Haswell ...
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Heterochaerus Carvalhoi
''Heterochaerus'' is a genus of worms belonging to the family Convolutidae. The species of this genus are found in Australia and Central America. Species: *''Heterochaerus australis'' *''Heterochaerus blumi ''Heterochaerus'' is a genus of worms belonging to the family Convolutidae. The species of this genus are found in Australia and Central America. Species: *''Heterochaerus australis ''Heterochaerus'' is a genus of worms belonging to the fa ...'' *'' Heterochaerus carvalhoi'' *'' Heterochaerus langerhansi'' *'' Heterochaerus sargassi'' References {{Taxonbar, from=Q4993230 Acoelomorphs Taxa named by William Aitcheson Haswell ...
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Heterochaerus Langerhansi
''Heterochaerus'' is a genus of worms belonging to the family Convolutidae. The species of this genus are found in Australia and Central America. Species: *''Heterochaerus australis'' *''Heterochaerus blumi'' *''Heterochaerus carvalhoi ''Heterochaerus'' is a genus of worms belonging to the family Convolutidae. The species of this genus are found in Australia and Central America. Species: *''Heterochaerus australis'' *''Heterochaerus blumi ''Heterochaerus'' is a genus of ...'' *'' Heterochaerus langerhansi'' *'' Heterochaerus sargassi'' References {{Taxonbar, from=Q4993230 Acoelomorphs Taxa named by William Aitcheson Haswell ...
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Heterochaerus Sargassi
''Heterochaerus'' is a genus of worms belonging to the family Convolutidae. The species of this genus are found in Australia and Central America. Species: *''Heterochaerus australis'' *''Heterochaerus blumi'' *''Heterochaerus carvalhoi'' *''Heterochaerus langerhansi ''Heterochaerus'' is a genus of worms belonging to the family Convolutidae. The species of this genus are found in Australia and Central America. Species: *''Heterochaerus australis'' *''Heterochaerus blumi'' *''Heterochaerus carvalhoi '' ...'' *'' Heterochaerus sargassi'' References {{Taxonbar, from=Q4993230 Acoelomorphs Taxa named by William Aitcheson Haswell ...
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