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You are here:   animal list > Holothuria impatiens

 

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Holothuria impatiens (Forskal 1775)

The Impatient Sea Cucumber



Olivia Degn (2011)

 


 

Fact Sheet

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Overview

Comprehensive Description


Physical Description

Size


Identification Resources


Colour and Texture


Ecology

Local Distribution and Habitats


Biogeographical Distribution


Micro-habitats and Associations


Crypsis


Nocturnal Activity & Micro-Habitat Preference


Life History & Behaviour

Behaviour


Defense Mechanisms


Diet and Feeding


Reproduction and Life Cycle


Evolution & Systematics

Fossil History


Phylogenetics


Morphology and Physiology

External Morphology


Internal Anatomy


Conservation

Threats


Wikipedia


Additional Information

References

Comprehensive Description

Holothuria impatiens commonly named ‘The Impatient Sea Cucumber’ is an echinoderm within the class Holothuroidea. There are approximately 340 species within 35 genera and three families (Cannon and Silver 1986). This particular species of sea cucumber is part of the order Aspidochirotida. Individuals in this order can be distinguished by their soft flexible bodies and tube feet that have obvious soles (Clark and Rowe 1971). In conjunction with this, members

of the Aspidochirotida order are deposit feeders but perhaps the most defining feature of this order is the ability to expel respiratory organs as a method of defense (Rowe 1969). Holothuria impatiens is part of the family Holothuriidae, which is one of the more diverse of the three families (Clark 1938). Individuals within this family are commonly found in shallow tropical waters, primarily residing in coral reefs at depths of no more than 40m. (Samyn et al. 2005)

H. impatiens itself is a detritovore and is commonly found in areas where organic matter is plentiful. This species is nocturnal and quite cryptic, it remains unseen during the day by tangling its body deep within large coral rubble assemblages. At night it will only extend half of its body out of its shelter to feed, rarely will this species be found in full view. Individuals can reach up to 30cm in length, and are characterized by their bumpy greyish pink surface.



Figure 1:
Holothuria Impatients. Coral reef  flat, Heron Island, QLD 

 

Classification

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Kingdom
Animalia
Phylum
Echinodermata
Class
Holothuroidea
Order
Holothuriida
Family
Holothuriidae
Genus
Holothuria
Subgenus
Thymiosycia

Synonyms

Fistularia impatiens (Forsskål, 1775)
Holothuria botellus (Selenka, 1867)
Holothuria fulva (Quoy & Gaimard, 1834)
Holothuria impatiens ((Forskål, 1775))
Holothuria impatiens bicolor (Clark, 1938)
Holothuria impatiens bicolor (Clark, 1938)
Holothuria impatiens concolor (Clark, 1921)
Holothuria impatiens concolor (Clark, 1921)
Holothuria impatiens lutea (Clark, 1921)
Holothuria impatiens lutea (Clark, 1921)
Holothuria impatiens pulchra (Clark, 1921)
Holothuria impatiens pulchra (Clark, 1921)
Holothuria ophidiana (Quoy & Gaimard, 1834)

Common Names

イサミナマコ