Plate 1 issued from : M.V. Heptner in Trudy. Inst. Okeanol., 1971, 92. [p.105, Fig.15]. As Pareuchaeta prima.
Female (from Kuril-Kamchatka Trench).
Nota: Formula of the exopod of P1 spines on the last two segments, successively: Aa < AB (Aa ≈ 1/3 AB); Bb ≤ BC; Cc > BC (Cc = 1 3/4 BC) P2: Aa > AB (Aa = AB + 1/2 Bb); Bb < BC (Bb ≈ 2/3 BC); Cc >CD (Cc = CD + Dd. Variant: Aa = Ab; Bb = BC; Cc > CD (Cc = CD + 1/3 Dd). [cf. legend in drawings of Heptner, 1971, for Pareuchaeta rubra]