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The Bathyal Holothurians of the New Zealand Region

Amperima Pawson, 1965

page 31

Amperima Pawson, 1965

Diagnosis: Body slightly elongate or egg-shaped, at most two and a half times as long as broad; tentacles ten. Anteriorly, dorsal side carries a transverse row of 3–4 papillae, sometimes discrete, sometimes adjoining, sometimes fused into a voluminous transverse four-lobed process. Immediately posterior to papillae a small number of isolated very small papillae present on radii. Ventral radii each with a row of pedicels, usually restricted to posterior half of each radius. Deposits triradiate bodies, together with sigmas. (After Perrier, 1901 in Deichmann, 1930.)

Type Species: Periamma roseum Perrier.

Remarks : This genus was formerly known as Periamma Perrier, but the generic name was preoccupied. The new name Amperima was given elsewhere (Pawson, 1965a). Amperima is cosmopolitan and contains seven species, five of which are known from the Pacific and Indian Oceans. Madsen (1958) notes that most species can be found below about 3,000 metres.

Amperima tui Pawson

Amperima tui Pawson, 1965a, p. 216, Pl. IV, figs. 1–3.

Material Examined: "Tui" Stn. 098–111, 14 specimens; Stn. 098–46, 2 specimens.

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