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Classification


Geographic Distribution

Antarctic Convergence illustration Antarctic convergence

Bathymetric Specimen Dispersal

1 individual specimen found for Submargarita unifilosa.

Submargarita unifilosa Thiele, 1912  Species

Synonymy

Original Description
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Original Description
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Submargarita unifilosa Thiele, 1912 (Fig. 146)

Submargarita unifilosa Thiele, 1912: 190, pl. 11, fig. 20: Powell, 1960: 132: Dell, 1972b: 33; Egorova, 1982: 18, fig. 89.

MATERIAL EXAMINED: NZOI Stns A449, A470; Hero Stn 26; USNM, 66°32­-94'S, 93°00-90'E, Davis Sea, 80 m.

DESCRIPTION: Described by Thiele from 89°E, S. unifilosa can now be recorded also from 93°E, the Ross Sea and off the Antarctic Peninsula in depths of 80-377 m (in the Ross Sea from 362-377 m). When more extensive collections of smaller molluscs are available, it will probably be found to be more widespread.

REMARKS: The species is refigured for comparison. The diagnostic characters appear to be the trochiform shell with its height slightly greater than its diameter, the comparatively prominent single, raised spiral cord at the level of the adapical margin of the aperture, a few minor incised spiral striae on the last whorl, and the smooth base.”

(Dell, 1990: 89-90)

Geographic Distribution

Described by Thiele from 89°E, S. unifilosa can now be recorded also from 93°E, the Ross Sea and off the Antarctic Peninsula in depths of 80-377 m (in the Ross Sea from 362-377 m). When more extensive collections of smaller molluscs are available, it will probably be found to be more widespread.

Specimens

Type Status Catalog No. Date Collected Location Coordinates Depth (m) Vessel
  898293 2/10/1969 Antarctic Ocean 63.4° S, 62.2° W 119 – 124 Hero R/V

View additional taxa  View all species collected at same locations as Submargarita unifilosa