Home > Science > Biology > Flora and Fauna > Animalia > Echinodermata > Holothuroidea
Holothuroideans are the sea cucumbers. They are sausage-shaped and have fleshy bodies with the skeleton reduced to a few ossicles in the body wall. Tentacles surround their mouths and help them to eat, pushing food towards their mouths. They crawl or burrow into soft sediments using muscular movements of the body wall.
http://animaldiversity.org/site/accounts/information/Holothuroidea.html
Photographs and information on the sea cucumbers from the Animal Diversity Web.
http://www.spc.int/coastfish/News/BDM/13/02.Ravest.html
Images and brief information about this Chilean species (Dendrochirotida: Cucumariidae).
http://www.glaucus.org.uk/Cotton.htm
Whilst diving round the coasts of Britain, Jane Lilley observed this sea cucumber and its behavior.
http://lanwebs.lander.edu/faculty/rsfox/invertebrates/cucumaria.html
Exercise from Invertebrate Anatomy OnLine covering the systematics, external and internal anatomy of this sea cucumber.
http://www.reefs.org/library/article/r_toonen2.html
Rob Toonen's comments about the defense mechanisms of sea cucumbers.
http://www.european-marine-life.org/30/holothuria-forskali.php
Photographs and a description of this species.
http://tolweb.org/Holothuroidea
Introduction, characteristics, phylogenetic relationships and fossil history of the sea cucumber, from the Tree of Life Web Project.
http://en.wikipedia.org/wiki/Holothuroidea
Wikipedia article on this class of marine animals, the sea cucumbers, with elongated bodies and leathery skin.
http://tolweb.org/tree?group=Holothuroidea&contgroup=Echinodermata
Overview, including characteristics, taxonomy, phylogenetic relationships, and fossil history.
http://www.sms.si.edu/irlspec/Isticho_badion.htm
Taxonomy, description and photograph of this sea cucumber.
http://lanwebs.lander.edu/faculty/rsfox/invertebrates/sclerodactyla.html
Exercise from Invertebrate Anatomy OnLine covering the systematics, external and internal anatomy of this sea cucumber, with notes on Cucumaria.
http://bioweb.uwlax.edu/bio203/s2008/hui_ka/
Research project by Ka Wai Hui on this species, including its classification, habitat, reproduction, nutrition, adaptations and use to humans.
http://oz.plymouth.edu/~lts/invertebrates/Primer/text/holothuroidea.html
Description and interesting facts.
http://www.sms.si.edu/irlspec/Thyonel_gemmat.htm
Taxonomy and photograph of this shallow-water sea cucumber.
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