About: Keyhole sand dollar

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Keyhole sand dollar refers to three species of sand dollars in the genus Mellita. They are found on the Atlantic coasts of the Americas, ranging from Caribbean Islands, such as Jamaica and Puerto Rico, to the southern areas of the United States at the north to the southern coasts of Brazil at the south. Their range includes Bermuda and the Pacific coasts of equatorial countries, such as Mexico and Costa Rica. * Openings for the mouth (center) and anus (below mouth) can be seen on the underside of the sand dollar test. *

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rdfs:label	Keyhole sand dollar (en)
rdfs:comment	Keyhole sand dollar refers to three species of sand dollars in the genus Mellita. They are found on the Atlantic coasts of the Americas, ranging from Caribbean Islands, such as Jamaica and Puerto Rico, to the southern areas of the United States at the north to the southern coasts of Brazil at the south. Their range includes Bermuda and the Pacific coasts of equatorial countries, such as Mexico and Costa Rica. * Openings for the mouth (center) and anus (below mouth) can be seen on the underside of the sand dollar test. * (en)
foaf:depiction
dcterms:subject	Mellitidae
Wikipage page ID	9024293 (xsd:integer)
Wikipage revision ID	1052422313 (xsd:integer)
Link from a Wikipage to another Wikipage	Caribbean Sea Puerto Rico Sand dollar Mellitidae Endoskeleton Mellita quinquiesperforata Bermuda Brazil United States Costa Rica Natural selection Echinoderms Florida Pacific Ocean Bilateral symmetry Mississippi Delta Radial symmetry Jamaica Atlantic Ocean South America Mexico Echinoid Biological evolution
Link from a Wikipage to an external page	http://north-carolina-sea-shells.blogspot.com/2006/05/sand-dollar.html http://www.edwardtbabinski.us/beach_kids/sea_shells/keyhole_sand_dollar/ https://web.archive.org/web/20061223020437/http:/www.coastalstudies.org/what-we-do/stellwagen-bank/invertebrates.htm http://animaldiversity.ummz.umich.edu/site/accounts/information/Mellita_quinquiesperforata.html http://www.ncseagrant.org/
sameAs	Keyhole sand dollar Keyhole sand dollar Keyhole sand dollar
dbp:wikiPageUsesTemplate	dbt:Automatic_Taxobox dbt:Echinoidea-stub dbt:Short_description
thumbnail	wiki-commons:Special:FilePath/Sand_Dollar.jpg?width=300
image caption	Mellita quinquiesperforata (en)
taxon	Mellita (en)
has abstract	Keyhole sand dollar refers to three species of sand dollars in the genus Mellita. They are found on the Atlantic coasts of the Americas, ranging from Caribbean Islands, such as Jamaica and Puerto Rico, to the southern areas of the United States at the north to the southern coasts of Brazil at the south. Their range includes Bermuda and the Pacific coasts of equatorial countries, such as Mexico and Costa Rica. The velvet-like skin of live keyhole sand dollars is usually tan, brown, grey or dark green in colour. Like all sand dollars, they are found in shallow seawater below tide lines, where they burrow into the seabed to obtain food. The creatures feed on fine particles of plankton and other organic matter they filter from the water. Keyhole sand dollars are so named because of the distinctive keyhole-shaped perforation toward the rear of the endoskeleton. This body shape offers an example of secondary front-to-back bilateral symmetry in an organism whose adult anatomy is primarily based on fivefold radial symmetry. The radial symmetry is characteristic of echinoids generally, including the ancestors of sand dollars. The bilateral features evolved as adaptations to a burrowing lifestyle. Mellita isometra ranges across the east coast of the United States. Mellita tenuis appears across the Caribbean and Gulf Coasts of Florida and nearby states. Mellita quinquiesperforata inhabits a wide range, from near the Mississippi Delta to Mexico and the Caribbean region and the coasts of South America. * Openings for the mouth (center) and anus (below mouth) can be seen on the underside of the sand dollar test. * Hundreds of tube feet, called podia, project from the underside of the live animal to capture and move food and sediment particles to the mouth. The bumps, called tubercles, on which short spines rest, can be seen on the underside of the test. Locomotion on and through sediment is achieved by the spines moving in coordination. (en)
prov:wasDerivedFrom	wikipedia-en:Keyhole_sand_dollar?oldid=1052422313&ns=0
page length (characters) of wiki page	3050 (xsd:nonNegativeInteger)
foaf:isPrimaryTopicOf	wikipedia-en:Keyhole_sand_dollar
is Link from a Wikipage to another Wikipage of	Sand dollar Mellita
is Wikipage redirect of	Mellita
is foaf:primaryTopic of	wikipedia-en:Keyhole_sand_dollar

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