Schackoinella antarctica, a new species of Foraminiferida (Glabratellidae)

Abstract

The new species Schackoinella antarctica is described from seafloor sediments in McMurdo Sound and from raised beach samples on Ross Island. This species is a rare calcareous form, averaging 0.1 mm in size, and was found in water 80 to 620 m deep in McMurdo Sound. No live specimens have been recovered. Forms belonging to this genus have also been found in India, Western Australia, Austria, and possibly Poland.

SCHACKOINELLA SPINA, A NEW BENTHIC FORAMINIFERAL SPECIES FROM COLD-WATER CORAL ECOSYSTEMS OF THE ALBORAN SEA AND THE GULF OF CÁDIZ

“…The new species shows certain morphological similarities with Schackoinella antarctica Ward, 1987, found in the McMurdo Sound (Ross Sea) and on outcrops from the Ross Island (Fig. 1B).…”

“…Specimens of S. spina were found at water depths ranging from 258-532 m. Schackoinella antarctica was found at a corresponding depth in the Ross Sea (Ward, 1987). Schackoinella favoculcita was recovered from the deep Pacific Ocean in water depths from 2031-4290 m (Clark, 1994).…”

“…Presently accepted as belonging to the Schackoinella genus are S. sarmatica Weinhandl, 1958, S. wadeae Quilty, 1975, S. dissensa McCulloch, 1977, S. gordabankensis McCulloch, 1977, S. antarctica Ward, 1987, and S. favoculcita Clark, 1994 To provide a global overview of ecological preferences and distribution of different species that have been attributed to the genus Schackoinella in the literature, we here discuss similarities and differences with species displaying evident morphological characters of the genus Schackoinella. These species are C. imperatoria (d 'Orbigny, 1846), which Quilty (1975) and Ward (1987) both agree should be referred to the genus Schackoinella, and M. globosa (Millett, 1903; Table 2). …”