Holothuria (Holothuria)

Rowe, 1969

8 species

Tentacles 20; pedicels crowded irregularly on the flattened ventral sole, papillae of varied sizes arranged dorsally, a collar of papillae surrounding the base of the tentacles, anal papillae usually apparent; body wall soft, usually quite thick, about 3 (1-6 mm), see H. (Thymiosycia); body almost cylindrical but with flattened ventral surface; size small to large, up to 300 mm long, calcareous ring fairly stout, radial plates about twice as long as interradials, spicules consisting of simple irregular tables with spinous disc which may be somewhat reduced, spire moderate to high, buttons simple, always with numerous small rounded or pointed knobs giving the button a very rugose appearance, three to ten pairs of holes which sometimes become obliterated by the thickening of the button. (Rowe, 1969)