Aspidosiphonidae

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]

Aspidosiphonidae
Scientific classification
Kingdom: Animalia
Phylum: Sipuncula
Class: Phascolosomatidea
Order: Aspidosiphonida
Family: Aspidosiphonidae
Quatrefages, 1865
Genera
  • Aspidosiphon Diesing, 1851
  • Cloeosiphon Grube, 1868
  • Lithacrosiphon Shipley, 1902

Description

The family Aspidosiphonidae is characterized by an oral disk with short tentacles arranged in a crescent enclosing nuchal organ. Present a coelomisd canal of sacs not present in body wall the longitudinal muscles layer either continuous or in band. Present anterior and terminal trunk chitinized to form anal shield, the posterior end usually likewise modified to form caudal shield. Have two nephridia.[1][2][4][5]

Species

Aspidosiphon
  • Aspidosiphon albus Murina, 1967[4][5][6]
  • Aspidosiphon coyi de Quatrefages, 1865[4][5]
  • Aspidosiphon elegans (Chamisso and Eysenhardt, 1821)[4][5]
  • Aspidosiphon exiguus Edmonds 1974[4][5]
  • Aspidosiphon fischeri Broeke, A. ten, 1925[4][5]
  • Aspidosiphon gosnoldi Cutler, E., 1981[4][5]
  • Aspidosiphon gracilis (Baird, 1868)[4][5]
  • Aspidosiphon laevis de Quatrefages, 1865[4][5]
  • Aspidosiphon mexicanus Murina, 1967[4][5]
  • Aspidosiphon misakiensis Ikeda 1904[4][5]
  • Aspidosiphon muelleri Diesing 1851[4][5]
  • Aspidosiphon parvulus Gerould, 1913[4][5][6]
  • Aspidosiphon planoscutatus Murina, 1968[4][5]
  • Aspidosiphon spiralis Sluiter, 1902[4][5][6]
  • Aspidosiphon steenstrupii Diesing, 1859[4][5]
  • Aspidosiphon tenuis Sluiter, 1886[4][5]
  • Aspidosiphon thomassini Cutler and Cutler, 1979[4][5]
  • Aspidosiphon venabulum Selenka & Bulow, 1883[4][5]
  • Aspidosiphon zinni Cutler, 1969[4][5][6]

Cloeosiphon
  • Cloeosiphon aspergillus (de Quatrefages, 1865)[4][5]

Lithacrosiphon
  • Lithacrosiphon cristatus (Sluiter, 1902)[4][5]
  • Lithacrosiphon maldivensis Shipley 1902[4][5]
gollark: At best he can get, what, 16-24 eggs a day?
gollark: I wonder if there's a way to make it fairer. Maybe measure latency then delay stuff based on that. It would be hard and probably abusable though.
gollark: It would be a few MB/s, but my computer is on Ethernet via powerline adapter.
gollark: At home, 300KB/s with 25ms latency (powerline adapters are awful).
gollark: I was on my phone at the time, so not much.

References
  1. Gibbs, P.E. (1977): British sipunculans. Academic Press. London. 35p. ISBN 0-12-282050-9
  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. 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. Cutler, Edward B. (1994): The Sipuncula: their systematic, biology and evolution. 406p ISBN 0-8014-2843-2 Google Book
  6. Cutler, Edward B. (1973): Sipuncula of the Western North Atlantic. Bulletin of American Museum of Natural History 152(3)103-201. New York.
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