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Harrimaniidae is a basal family of
acorn worm 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 th ...
s. 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:Harrimaniidae
World Register of Marine Species The World Register of Marine Species (WoRMS) is a taxonomic database that aims to provide an authoritative and comprehensive list of names of marine organisms. Content The content of the registry is edited and maintained by scientific specialis ...
. Retrieved October 17, 2011. *'' Harrimania'' Ritter, 1900 **'' Harrimania kupfferi'' (von Willemoes-Suhm, 1871) **'' Harrimania maculosa'' Ritter, 1900 **'' Harrimania planktophilus'' Cameron, 2002 *''
Horstia ''Horstia'' is a genus of mites in the family Acaridae The Acaridae are a family of mites in order Sarcoptiformes. Distribution There are several acarid genera with cosmopolitan distributions, such as ''Acarus', Sancassania'' and ''Tyrophag ...
'' Deland, Cameron, Rao, Ritter & Bullock, 2010 **'' Horstia kincaidi'' Deland, Cameron, Rao, Ritter & Bullock, 2010 *'' Mesoglossus'' Deland, Cameron, Rao, Ritter & Bullock, 2010 **'' Mesoglossus bournei'' (Menon, 1904) **'' Mesoglossus caraibicus'' (van der Horst, 1924) **'' Mesoglossus gurneyi'' (Robinson, 1927) **'' Mesoglossus intermedius'' Deland, Cameron, Rao, Ritter & Bullock, 2010 **'' Mesoglossus macginitiei'' Deland, Cameron, Rao, Ritter & Bullock, 2010 **'' Mesoglossus pygmaeus'' (Hinrichs & Jacobi, 1938) *'' Protoglossus'' van der Horst, 1935 **'' Protoglossus graveolens'' Giray and King, 1996 **'' Protoglossus koehleri'' (Caullery and Mesnil, 1900) **'' Protoglossus taeniatum'' author unknown *'' Ritteria'' Deland, Cameron, Rao, Ritter & Bullock, 2010 **'' Ritteria ambigua'' Deland, Cameron, Rao, Ritter & Bullock, 2010 *'' Saccoglossus'' Schimkewitsch, 1892 **'' Saccoglossus apatensis'' Thomas, 1956 **'' Saccoglossus aulakoeis'' Thomas, 1968 **'' Saccoglossus borealis'' Okuda & Yamada, 1955 **'' Saccoglossus bournei'' (Menon, 1904) **'' Saccoglossus bromophenolosus'' King, Giray and Kornfield, 1994 **'' Saccoglossus caraibicus'' (van der Horst, 1924) **'' Saccoglossus gurneyi'' (Robinson, 1927) **'' Saccoglossus horsti'' Brambell and Goodhart, 1941 **'' Saccoglossus hwangtauensis'' Si & Kwang-Chung, 1935 **'' Saccoglossus inhacensis'' van der Horst, 1934 **'' Saccoglossus kowalevskii'' (Agassiz, 1873) **'' Saccoglossus madrasensis'' Rao, 1957 **'' Saccoglossus mereschkowskii'' (Wagner, 1885) **'' Saccoglossus otagoensis'' (Benham, 1899) **'' Saccoglossus pusillus'' (Ritter, 1902) **'' Saccoglossus pygmaeus'' Hinrichs and Jacobi, 1938 **'' Saccoglossus ruber'' Tattersall, 1905 **'' Saccoglossus sulcatus'' (Spengel, 1893) *'' Stereobalanus'' Spengel, 1901 **'' Stereobalanus canadensis'' (Spengel, 1893) **'' Stereobalanus willeyi'' Ritter, 1904 *'' Xenopleura'' Gilchrist, 1925 **'' Xenopleura vivipara'' Gilchrist, 1925


References

Enteropneusta Articles containing video clips {{Hemichordate-stub