Aspidosiphonidae

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Aspidosiphonidae
Aspidosiphon steenstrupii (Sipuncula).jpg
Aspidosiphon steenstrupii
Scientific classification OOjs UI icon edit-ltr.svg
Domain: Eukaryota
Kingdom: Animalia
Phylum: Annelida
Class: Sipuncula
Order: Aspidosiphonida
Family: Aspidosiphonidae
Quatrefages, 1865
Genera

Aspidosiphonidae is a family of peanut worms. It is the only family in the monotypic order Aspidosiphonida, which is in the class Phascolosomatidea. [1] [2] [3] [4] [5]

Contents

Description

The family Aspidosiphonidae is characterized by an oval disk with short tentacles, arranged in a crescent-shape made of an enclosed nuchal organ. It has a canal of sacs in the coelom, lying in a continuous band. The anal and caudal shield (at the anterior end) are both made up, not of chitin, but of a horny protein. It is of note that most, but not all, of the Aspidosiphonidae family has a caudal shield. The family also has two nephridia. [1] [2] [4] [5]

Species

Aspidosiphon

Cloeosiphon

Lithacrosiphon

Related Research Articles

<span class="mw-page-title-main">Sipuncula</span> Phylum of invertebrates, peanut worms

The Sipuncula or Sipunculida is a class containing about 162 species of unsegmented marine annelid worms. Sipuncula was once considered a phylum, but was demoted to a class of Annelida, based on recent molecular work.

<span class="mw-page-title-main">Phascolosomatidea</span> Class of worms

Phascolosomatidea is a subclass of the class Sipuncula, the peanut worms, containing two orders:-

<span class="mw-page-title-main">Phascolosomatidae</span> Family of worms

Phascolosomatidae is a family of peanut worms. It is the only family in the order Phascolosomatida, which is in the class Phascolosomatidea.

<span class="mw-page-title-main">Golfingiidae</span> Family of annelid worms

Golfingiidae is a family of peanut worms.

<i>Themiste</i> (worm) Genus of worms

Themiste is a genus of peanut worms. It is the only genus in the family Themistidae.

<span class="mw-page-title-main">Golfingiida</span> Order of peanut worms

Golfingiida, also known as the Golfingiiformes, is an order of peanut worms. The tentacles form a circle around the mouth, while those of the sister taxon, Phascolosomatidea, are only found above the mouth. Most species burrow in the substrate but some live in the empty shells of gastropods. It is an order of the class Sipuncula, and contains the following families:

Phascolionidae is a family of peanut worms.

Onchnesoma is one of the two genera that constitute the family Phascolionidae of Phylum Sipuncula, described by Koren and Danielssen established in 1873 as the type species to Onchnesoma steenstrupii.

<i>Antillesoma</i> Genus of peanut worms

Antillesoma is a genus of peanut worms. The genus belongs to the family Phascolosomatidae. Antillesoma was described in 1973 by Stephen and Edmonds.

<i>Antillesoma antillarum</i>

Antillesoma antillarum is the type species of the peanut worm genus Antillesoma. The genus belongs to the family Phascolosomatidae.

Nephasoma minutum is a marine invertebrate of the phylum Sipuncula, commonly known as peanut worms because of their shape when contracted. It is a cylindrical, unsegmented worm with a crown of tentacles around the mouth. These worms live in crevices in the rocks or in burrows in shallow water in Western Europe, and the eastern United States.

Nephasoma rimicola is a marine invertebrate belonging to the phylum Sipuncula, the peanut worms. This worm occurs in the northeastern Atlantic Ocean.

Aspidosiphon elegans is a species of unsegmented benthic marine worm in the phylum Sipuncula, the peanut worms. It is a bioeroding species and burrows into limestone rocks, stones and corals. It occurs in the western Indo-Pacific region, the Red Sea, and the tropical western Atlantic Ocean, and is invasive in the eastern Mediterranean Sea.

<i>Aspidosiphon muelleri</i> Species of marine worm

Aspidosiphon muelleri is a species of unsegmented benthic marine worm in the phylum Sipuncula, the peanut worms. This worm is found in the eastern Atlantic Ocean, the Mediterranean Sea and in various locations in the Indo-Pacific region at depths down to about 1,000 m (3,300 ft).

<i>Sipunculus robustus</i> Species of peanut worm

Sipunculus robustus is a species of unsegmented benthic marine worm in the phylum Sipuncula, the peanut worms.

Themiste cymodoceae is a species of unsegmented benthic marine worm in the phylum Sipuncula, the peanut worms. It is native to shallow waters around Australia and in the South China Sea where it lives in a cavity it creates among seagrass roots and in empty oyster shells.

<i>Themiste pyroides</i> Species of worm

Themiste pyroides is a species of unsegmented benthic marine worm in the phylum Sipuncula, the peanut worms. It occurs in the intertidal zone and shallow water in the western Atlantic Ocean and the northeastern Pacific Ocean. It lives in crevices and under rocks, extending its "crown" of branching tentacles into the surrounding water to feed.

Thysanocardia procera is a marine invertebrate belonging to the phylum Sipuncula, the peanut worms. It is a cylindrical, unsegmented worm with a crown of tentacles around the mouth. It is native to shallow seas in the northeastern Atlantic Ocean.

<i>Lithacrosiphon</i> Genus of worms

Lithacrosiphon is a genus of worms belonging to the family Aspidosiphonidae.

<i>Sipunculus</i> Genus of worms

Sipunculus is a genus of worms belonging to the family Sipunculidae.

References

  1. 1 2 Gibbs, P.E. (1977): British sipunculans. Academic Press. London. 35p. ISBN   0-12-282050-9
  2. 1 2 Ditadi, A.S.F. & Migotto, A.E. (1982): O Filo Sipuncula. Concelho Nacional de Desemvolvimento Cientifico e Tecnologico CNPq Brasilia. 43p.
  3. ↑ Cutler, Edward B. & Gibbs, Peter E. (1985): A Phylogenetic analysis of higher taxa in the Phylum Sipuncula. Systematic Zoology 34(2):162-173.
  4. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 Cutler, Edward B. & Cutler, Norma J (1989): A revision of the genus Aspidosiphon (Sipuncula: Aspidosiphonidaea). Proceedings of Biological Society of Washington 102(4):826-865 Bistor
  5. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 Cutler, Edward B. (1994): The Sipuncula: their systematic, biology and evolution. 406p ISBN   0-8014-2843-2 Google Books
  6. 1 2 3 4 Cutler, Edward B. (1973): Sipuncula of the Western North Atlantic. Bulletin of American Museum of Natural History152(3)103-201. New York.
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