Holothuria edulis

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Holothuria edulis
Pink form from Malaysia
Scientific classification Edit this classification
Kingdom: Animalia
Phylum: Echinodermata
Class: Holothuroidea
Order: Holothuriida
Family: Holothuriidae
Genus: Holothuria
Subgenus: Halodeima
Species:
H. edulis
Binomial name
Holothuria edulis
Lesson, 1830[2]
Synonyms[2]
  • Halodeima edulis (Lesson)
  • Holothuria (Halodeima) signata Ludwig, 1875
  • Holothuria (Thyone) edulis Lesson, 1830
  • Holothuria albida Bell, 1887

Holothuria edulis, commonly known as the edible sea cucumber or the pink and black sea cucumber, is a species of echinoderm in the family Holothuriidae. It was placed in the subgenus Halodeima by Pearson in 1914, making its full scientific name Holothuria (Halodeima) edulis.[2] It is found in shallow water in the tropical Indo-Pacific Ocean.[1]

Holothuria edulis is a medium-sized sea cucumber reaching a length of about 30 centimetres (12 in). It has a roughly cylindrical shape with rounded ends but can retract and expand its body and adopt different shapes. It is usually soft and pliable with a smooth skin but, due to the special characteristics of its connective tissue, it can become firm and rigid. The body is lined with longitudinal rows of small tube feet which can be withdrawn into the body wall, leaving small hollows. About twenty tube feet in a ring round the mouth are modified into feeding tentacles. This sea cucumber is usually a dark reddish-black colour on its upper side and a pinkish-mauve colour below, but can be grey or dark brown.[3][4][5]

Distribution and habitat

Grey form from Japan

Holothuria edulis is a common and widespread species in the Indo-Pacific Ocean. It lives on the seabed at depths down to 20 metres (66 ft). Its range extends from the Red Sea and East African coast to Sri Lanka, Japan, China, Indonesia, the Philippines, northern Australia and various Pacific islands.[1] It is found in a number of different habitats including on sandy or muddy substrates, on coral rubble and in seagrass meadows. It can be found on inner and outer reef flats, on back reef slopes and in lagoons.[2]

Biology

Human use

References

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