''Stichopus horrens'' is a variable, grey to green/black

sea cucumber Sea cucumbers are echinoderms from the class Holothuroidea (). They are marine animals with a leathery skin and an elongated body containing a single, branched gonad. Sea cucumbers are found on the sea floor worldwide. The number of holothuria ...

from the

Indo-Pacific The Indo-Pacific is a vast biogeographic region of Earth. In a narrow sense, sometimes known as the Indo-West Pacific or Indo-Pacific Asia, it comprises the tropical waters of the Indian Ocean, the western and central Pacific Ocean, and the ...

. It is often variegated with dark patches. It is a medium-sized species (to 30 cm) with a smooth tegument but large and irregular papillae. The big

tubercle In anatomy, a tubercle (literally 'small tuber', Latin for 'lump') is any round nodule, small eminence, or warty outgrowth found on external or internal organs of a plant or an animal. In plants A tubercle is generally a wart-like projection ...

s and irregular body form give an "irregular, soft and almost repulsive" appearance . Spicules are tables and large "C" bodies (''S. horrens'' spicules). ''S. horrens'' many be found on reefs, below rocks on flats.

References

* Stichopodidae Animals described in 1867 {{Holothuroidea-stub