The Catophragmidae are a
family
Family (from la, familia) is a group of people related either by consanguinity (by recognized birth) or affinity (by marriage or other relationship). The purpose of the family is to maintain the well-being of its members and of society. Idea ...
of
barnacles in the
superfamily Chthamaloidea
The Chthamaloidea are a subdivision of Balanomorpha proposed by Newman and Ross to include barnacles with shell wall composed of rostrum, carina, and one to three pairs of latera, rarely supplemented with one or more whorls of basal imbricating ...
with eight shell wall plates (
rostrum,
carina, paired
rostrolatera,
carinolatera I and carinolatera II), surrounded by several whorls of
imbricating plates. The basis is membranous.
This family occupies lower to upper mid
littoral
The littoral zone or nearshore is the part of a sea, lake, or river that is close to the shore. In coastal ecology, the littoral zone includes the intertidal zone extending from the high water mark (which is rarely inundated), to coastal areas ...
warm seas of the
Pacific
The Pacific Ocean is the largest and deepest of Earth's five oceanic divisions. It extends from the Arctic Ocean in the north to the Southern Ocean (or, depending on definition, to Antarctica) in the south, and is bounded by the continen ...
Coast of
Central America
Central America ( es, América Central or ) is a subregion of the Americas. Its boundaries are defined as bordering the United States to the north, Colombia to the south, the Caribbean Sea to the east, and the Pacific Ocean to the west. ...
,
Caribbean,
Bermuda
)
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, and
Australia/
Tasmania
)
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[ These populations are highly disjunct and can be seen as relictual.
The family contains these genera:]Catophragmus
''Catophragmus'' is the originally named genus of the family Catophragmidae. At present, it is monotypical. It is a shallow water acorn barnacle of the Tropical Western Atlantic and Caribbean characterized by small accessory imbricating plates su ...
'' Sowerby, 1827
The Catophragmidae have historically suffered from a lack of systematic attention. Ross and Newman, 2001[ published a revision of the family, proposing one new genus and creating two subfamilies: Catophragminae in the northern hemisphere and Catomerinae in the southern hemisphere. The family was discussed as representing very early balanomorph lineages. The known species conserve many ]plesiomorphic
In phylogenetics, a plesiomorphy ("near form") and symplesiomorphy are synonyms for an ancestral character shared by all members of a clade, which does not distinguish the clade from other clades.
Plesiomorphy, symplesiomorphy, apomorphy, an ...
traits. In 2021, a reclassification by Chan et al. resulted in the removal of the subfamilies and one genus.[
]
References
External links
*
{{Taxonbar, from=Q4286178
Barnacles
Crustacean families