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Deep-Sea Echinoderms of New Zealand

Ophiomisidium Koehler, 1914 — Ophiomisidium irene Fell

Ophiomisidium Koehler, 1914

Ophiomisidium irene Fell

  • Fell, H. B., 1952. Zool. Pubs. Vict. Univ., 18, p. 28–30, Figs. 21–22.

Material Examined: Nineteen specimens, as follows: 300 fathoms, Chatham Rise, Station 5, Chatham Islands 1954 Expedition, 1 individual; 130 fathoms, Station page 3134, Chatham Islands Expedition, 2 individuals; 300 metres, Chatham Rise, Discovery Station 2733, holotype and 15 other specimens (Fell, 1952).

Remarks: The species has now been taken in three separate hauls by two expeditions, and in each case from a station within 300 miles of the Chatham Islands. The nature of the bottom has been varied—fine grey mud, fine green sand, and fine sand and gravel. It is improbable that a deep-water form could be restricted to so small an area as the Chatham Islands region, and is may be suggested that the apparent restriction of the species to that area is really due to some difference in the bottom-sampling techniques. In forthcoming deep-water investigations in Cook Strait it is hoped to secure some samples of sand or mud for more detailed examination in the laboratory, since this minute form is especially liable to be overlooked at the time of collection.