Ophiodera serpentina (Lyman, 1883) — $ Koehler 1909: 203;
Ophiomyxa serpentaria Lyman, 1883 — Mortensen 1927a: 168, fig. 94a, 1933a: 11–14, figs. 1–3; Paterson 1985: 18–20, fig. 11; Harvey et al. 1988: 168; García-Diez et al. 2005: 48; Smirnov et al. 2014: 194.
Type locality: Faeroe Channel (59°56’N, 6°27’W).
See: Lyman (1883: 274, pl. 8, figs. 114–116); Paterson (1985).
Occurrence: Northeast Atlantic, from the Denmark Strait and Iceland southwards to the northwest African coast, including the Azores (Mortensen 1933 a, Paterson 1985).
Depth: 450– 2,440 m (Paterson 1985); AZO: 599– 1,095 m (Koehler 1909).
Habitat: sand (Koehler 1909), rock and coralligenous substrates (Cherbonnier 1969).
Larval stage: lecithotrophic (Mortensen 1933a).
Remarks: Ophiomyxa serpentaria is only known in the Azores from three poorly preserved specimens collected by Princesse Alice and reported by Koehler (1909) (sta 866: 38°52’50”N, 27°23’05”W, 599 m; sta 1344: 38°45’30”N, 28°07’45”W, 1,095 m).