Notes on three species of Tasmanian Sea Cucumbers including one species that broods its young in the coelome (Holothurioidae: Phyllophoridae, Caudinidae)

Two specimens of Neoamphicyclus lividus Hickman out of 135 dissected and examined were found to contain young in the coelome. Neothyonidium dearmatum (Dendy and Hindle), previously found on the coasts of New Zealand and Victoria is recorded from Tasmania for the first time. Paracaudina luticola Hickman, formerly known only from the caudal region of its body, is now described from two complete specimens.