Harrimaniidae

Harrimaniidae
	Meioglossus
Scientific classification
Kingdom:	Animalia
Phylum:	Hemichordata
Class:	Enteropneusta
Family:	Harrimaniidae; van der Horst, 1935
Genera
	Harrimania Ritter, 1900; Horstia Deland, Cameron, Rao, Ritter & Bullock, 2010; Meioglossus Worsaae, Sterrer, Kaul-Strehlow, Hay-Schmidt & Giribet, 2012; Mesoglossus Deland, Cameron, Rao, Ritter & Bullock, 2010; Protoglossus van der Horst, 1935; Ritteria Deland, Cameron, Rao, Ritter & Bullock, 2010; Saccoglossus Schimkewitsch, 1892; Saxipendium Woodwick & Sensenbaugh, 1985; Stereobalanus Spengel, 1901; Xenopleura Gilchrist, 1925;
Synonyms
	Saxipendiidae

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.

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