Holothuria parvula is a roughly cylindrical sea cucumber with tube feet on the underside and conical warty protuberances on the upper surface.

[4] Holothuria parvula is found on the seabed in shallow water in the tropical western part of the Atlantic, the Caribbean Sea and Gulf of Mexico.

Its range includes Bermuda, the West Indies, the Bahamas, the Lesser Antilles, Colombia and Venezuela.

[5] If attacked or stressed, this sea cucumber may eject a mass of sticky threads called cuvierian tubules from its anus.

[6] These contain a toxin called holothurin and entangle small fish or crabs which are unable to free themselves and eventually die.