Halcampidae is a family of sea anemones. Members of this family usually live with their column buried in sand or other soft substrates.
Genera Genera in the family include: Acthelmis Lütken, 1875 Cactosoma Danielssen, 1890 Calamactinia Carlgren, 1949 Calamactis Carlgren, 1951 Halcampa Gosse, 1858 Halcampaster Halcampella Andres, 1883 Halcampoides Danielssen, 1890 Halianthella Kodioides Mena Metedwardsia Neohalcampa Parahalcampa Pentactinia Carlgren, 1900 Scytophorus Hertwig, 1882 Siphonactinopsis Carlgren, 1921
Characteristics Species of Halcampidae mostly have elongated columns which are sometimes differentiated into different regions. The base is usually rounded but in some species it is flattened. There is no sphincter. There are up to forty tentacles, all of equal length. There are up to twenty pairs of perfect mesenteries (internal partitions) with strong retractors. There are one or two siphonoglyphs (ciliated grooves).Halcampoididae Tree of Life Web Project. Retrieved 2011-10-08.Family Halcampoididae Marine Species Identification Portal. Retrieved 2011-10-08.
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