''Saccoglossus '' is a genus of

acorn worm The acorn worms or Enteropneusta are a Hemichordata, 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 aco ...

(Class Enteropneusta). It is the largest genus in this class, with 18 species.Cameron, C. B., et al. (2010)
A revision of the genus ''Saccoglossus'' (Hemichordata: Enteropneusta: Harrimaniidae) with taxonomic descriptions of five new species from the Eastern Pacific.
''Zootaxa'' 2483 1-22. This genus is characterized especially by the concentric rings of muscle fibers in the proboscis. Many ''Saccoglossus'' can be found in coastal mud and sand habitat, often near

bay A bay is a recessed, coastal body of water that directly connects to a larger main body of water, such as an ocean, a lake, or another bay. A large bay is usually called a Gulf (geography), gulf, sea, sound (geography), sound, or bight (geogra ...

s. They dig tubes in the substrate, ejecting conical piles of castings in a spiral fashion. Acorn worms of this genus are known for the production and accumulation of various halogenated phenols and pyrroles.

Species

Species include: * '' Saccoglossus apatensis'' Thomas, 1956 * '' Saccoglossus aulakoeis'' Thomas, 1968 * '' Saccoglossus bromophenolosus'' King, Giray and Kornfield, 1994 * '' Saccoglossus horsti'' Brambell and Goodhart, 1941 * '' Saccoglossus hwangtauensis'' Si & Kwang-Chung, 1935 * '' Saccoglossus inhacensis'' van der Horst, 1934 * ''

Saccoglossus kowalevskii Hemichordata is a phylum which consists of triploblastic, enterocoelomate, and bilaterally symmetrical marine deuterostome animals, generally considered the sister group of the echinoderms. They appear in the Lower or Middle Cambrian and incl ...

'' (Agassiz, 1873) * '' Saccoglossus madrasensis'' Rao, 1957 * '' Saccoglossus mereschkowskii'' (Wagner, 1885) * '' Saccoglossus otagoensis'' (Benham, 1899) * '' Saccoglossus palmeri'' Cameron, et al., 2010 * '' Saccoglossus porochordus'' Cameron, et al., 2010 * '' Saccoglossus pusillus'' (Ritter, 1902) * '' Saccoglossus rhabdorhynchus'' Cameron, et al., 2010 * '' Saccoglossus ruber'' Tattersall, 1905 * '' Saccoglossus shumaginensis'' Cameron, et al., 2010 * '' Saccoglossus sonorensis'' Cameron, et al., 2010 * '' Saccoglossus sulcatus'' (Spengel, 1893)

References

{{Taxonbar, from=Q2805435 Enteropneusta