WHATSTHATFISH
Sea stars & urchins

White-spotted Sea Cucumber

Actinopyga varians

Also known as: Hawaiian Sea Cucumber, Holothuroid, Speckled Sea Cucumber, Surf Redfish, Tripang

Adult
@fishx6 · O'ahu, United States · June 20161 / 3
01

Overview

Found singly, on living corals, and surrounding rubble areas of reefs.

Some sea cucumbers crawl around on the bottom slowly filtering sand through their tentacles to gather food, while others spread their tentacles above them to capture plankton. A number of sea cucumbers feed nocturnally while others feed by day.
There are sea cucumbers that hardly move while others are more active often perching on tall sponges to feed.
Sea cucumbers often attract hitch-hikers like shrimps and crabs that crawl over their skin, also pearlfish that enter via their anus.
As a means of defence sea cucumbers can expel their intestines or respiratory organs in the form of sticky threads, but these can quickly regenerate.
Juveniles often mimic sea slugs.
Some types of sea cucumbers are edible and considered a delicacy in the Far East countries.

02

How to identify

Behaviour
solitary

Tap any trait to see other fish that share it.

03

Habitat & where to find it

  • Range · Indo-Pacific
  • Dive site · 2
  • Country only · 1
LIVES IN

Found singly, on living corals, and surrounding rubble areas of reefs.

04

Adult photos 3

05

Discussion

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    ALL STAGES
    FOR THE MARINE-BIOLOGY CURIOUS

    Deep dive

    Taxonomy

    1. kingdomAnimalia
    2. phylumEchinodermata
    3. classHolothuroidea
    4. orderHolothuriida
    5. familyHolothuriidae
    6. genusActinopyga
    7. speciesActinopyga varians (Selenka, 1867)

    SourcesWoRMS

    06

    More in the family

    Sea Cucumbers (Holothuriidae)