Diagnosis : Body elongate to ovate. Tentacles ten. Dorsal surface of body with a small number of processes, restricted to anterior end of body or present anteriorly and posteriorly. Ventrolateral pedicels present in small numbers throughout radii. Midventral radius naked. Deposits include C-shaped spicules, unbranched rods, and three-armed spicules, of which the last two types may be spinous.

Type Species: Scotoplanes globosa Theel.

Remarks: This genus embraces seven species, and is known from the Atlantic and Pacific Oceans, from 500 metres to depths of approximately 10,000 metres.

Scotoplanes gilpinbrowni Pawson

Scotoplanes gilpinbrowni Pawson, 1965a, p. 217, Pl. IV, figs. 4–6.

Material Examined: "Tui" Stn. 003–02, 1 specimen.

Remarks: The species has already been described and discussed elsewhere (Pawson, 1965a).