Aspidosiphonidae is a family of peanut worms. It is the only family in the monotypic order Aspidosiphonida, which is in the class Phascolosomatidea.Gibbs, P.E. (1977): British sipunculans. Academic Press. London. 35p. Ditadi, A.S.F. & Migotto, A.E. (1982): O Filo Sipuncula. Concelho Nacional de Desemvolvimento Cientifico e Tecnologico CNPq Brasilia. 43p.Cutler, Edward B. & Gibbs, Peter E. (1985): A Phylogenetic analysis of higher taxa in the Phylum Sipuncula. Systematic Zoology 34(2):162-173.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 BistorCutler, Edward B. (1994): The Sipuncula: their systematic, biology and evolution. 406p Google Books
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.
Species
Aspidosiphon Aspidosiphon albus Murina, 1967 (1973): Sipuncula of the Western North Atlantic. Bulletin of American Museum of Natural History 152(3)103-201. New York. Aspidosiphon coyi de Quatrefages, 1865 Aspidosiphon elegans (Chamisso and Eysenhardt, 1821) Aspidosiphon exiguus Edmonds 1974 Aspidosiphon fischeri Broeke, A. ten, 1925 Aspidosiphon gosnoldi Cutler, E., 1981 Aspidosiphon gracilis (Baird, 1868) Aspidosiphon laevis de Quatrefages, 1865 Aspidosiphon mexicanus Murina, 1967 Aspidosiphon misakiensis Ikeda 1904 Aspidosiphon muelleri Diesing 1851 Aspidosiphon parvulus Gerould, 1913 Aspidosiphon planoscutatus Murina, 1968 Aspidosiphon spiralis Sluiter, 1902 Aspidosiphon steenstrupii Diesing, 1859 Aspidosiphon tenuis Sluiter, 1886 Aspidosiphon thomassini Cutler and Cutler, 1979 Aspidosiphon venabulum Selenka & Bulow, 1883 Aspidosiphon zinni Cutler, 1969
Cloeosiphon Cloeosiphon aspergillus (de Quatrefages, 1865)
Lithacrosiphon Lithacrosiphon cristatus (Sluiter, 1902) Lithacrosiphon maldivensis Shipley 1902
References
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