Halcampidae is a
family
Family (from la, familia) is a Social group, group of people related either by consanguinity (by recognized birth) or Affinity (law), affinity (by marriage or other relationship). The purpose of the family is to maintain the well-being of its ...
of
sea anemone
Sea anemones are a group of predation, predatory marine invertebrates of the order (biology), order Actiniaria. Because of their colourful appearance, they are named after the ''Anemone'', a terrestrial flowering plant. Sea anemones are classifi ...
s. 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
MENA, an acronym in the English language, refers to a grouping of countries situated in and around the Middle East and North Africa. It is also known as WANA, SWANA, or NAWA, which alternatively refers to the Middle East as Western Asia (or a ...
''
* ''
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
In zoology, a mesentery is a membrane inside the body cavity of an animal. The term identifies different structures in different phyla: in vertebrates it is a double fold of the peritoneum enclosing the intestines; in other organisms it forms co ...
(internal partitions) with strong retractors. There are one or two
siphonoglyph The siphonoglyph is a ciliated groove at one or both ends of the mouth of sea anemones and some corals. The siphonoglyph extends into a pharynx and is used to create currents of water into the pharynx. These water currents are important for respirat ...
s (ciliated grooves).
Family Halcampoididae
Marine Species Identification Portal. Retrieved 2011-10-08.
References
Metridioidea
Cnidarian families
{{Actiniaria-stub