cruises off the west coast of the Cape Peninsula, South Africa, in 1959 by the then Division of Sea Fisheries, are diagnosed and/or described. The material is distributed over 10 families, 13 genera, 15 nominal and two indeterminate species, and includes three recently described species (Thander 1998), a new species, Molpadia millardae
, and nine new records for the southern African region, south of the tropic of Capricorn. Previous records of Echinocucumis typica
sensu Clark, 1923 (non Sars, 1859), and Sphaerothuria talismani
(partim) sensu Deichmann, 1930 (non E. Perrier, 1886), are based on misidentifications of Ypsilothuria bitentaculata
Some 106 specimens of deep-sea holothuroids taken by the R.V.