Class Holothuria consists of the somewhat humorous Sea Cucumbers.
This is probably the most common sea cucumber on Axial.
This small sea cucumber is extremely abundant at the base of Axial Seamount.
This species was observed at the base of Axial. Its purple hue gave VISIONS scientists the idea to nickname it a Sea Eggplant, since it inhabits the same area as other sea cucumbers!
This large, clear sea cucumber dwells in the same habitat as the Peniagone Sea cucumbers, and may be a relative. It is also very similar to the group of sea cucumbers referred to as Sea Pigs (Scotoplane sp.), however, this specimen, and another nearby lacked the two sets of antennae-like features that characterize Sea Pigs.
This species was observed in sediments at the base of Axial Seamount. It may be related to The Deep Sea Cucumber (Pannychia moseleyi).