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Description

COLLONIA CUNNINGHAMI, sp. n. (Plate IV. figs. 10, 10 a.)

 

 

Shell small, subglobose, perforate in the young state, when adult imperforate, of a rose-madder colour. Whorls 4½; apical one whitish, the rest convex and finely spirally striated, also marked with, faint oblique lines of growth. Suture rather deep. Last whorl obliquely descending near the lip, somewhat flattened beneath near the centre. Aperture obliquely subcircular, iridescent within. Columella pearly, spread over the umbilicus. Labrum with a narrow pinkish margin within. Height 4½ millims., greatest diam. 5, smallest diam. 4 ⅓.

 

Operculum circular, consisting of six whorls, which are most easily seen on the inner suface. The outside is somewhat thickened by a shelly deposit.

 

Hab. Stations 5 and 2, and Wolsey anchorage, 17 fathoms, mud and gravel bottom.

 

Named after Dr. R. O. Cunningham, whose labours on the Patagonian fauna are well known and highly appreciated.”

 

 

(Smith, 1881: 33)

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Creative Commons Attribution Non Commercial 3.0 (CC BY-NC 3.0)

© National Museum of Natural History, Smithsonian Institution

Source: Antarctic Invertebrates Website (NMNH)

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