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Taxon profile

species

Spectamen verum A. W. B. Powell, 1937

kingdom Animalia - animals »  phylum Mollusca - mollusks »  class Gastropoda - gastropods »  order Trochida »  family Solariellidae »  genus Spectamen

Scientific synonyms

Solariella vera (A.W.B. Powell, 1937)

Images

Spectamen verum

Author: Powell, A.W.B

Taxon in country check-lists*

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Description

Solariella vera: Shell small, depressed, finely lirate, shining, widely and deeply umbilicate. Whorls 4,25, including typical smooth bulbous protoconch of one whorl. Spire low, a little less than height of aperture. Sculpture of post-nuclear whorls consisting of fine closely spaced lirations, nine on the penultimate whorl and about thirty on the body whorl, ten of these being between the upper suture and the periphery and the remaining twenty (which are finer and more closely spaced) from the periphery over the base to the ridge that margins the umbilicus. There is a moderately wide ill-defined subsutural shoulder bearing weak closely spaced short radials which at most inconspicuously bead the uppermost spirals only. Umbilicus deep and wide, a little more than one-third the diameter of the shell and bordered by a heavy rounded spiral ridge, which is weakly crenulated by fine axial growth folds. Colour: protoconch buff, early spire whorls lemon yellow, remainder of shell pale ochreous buff. On the dorsal surface only there are a few rather narrow wavy irregular radial bands of reddish brown. Height 3,5 mm.; major diameter 5,4 mm. (Holotype).
Source: Powell, A.W.B., 1937. New species of marine Mollusca from New Zealand (Original description)

Interchangeable taxa

Solariella vera: This species appears to be intermediate between the S. plicatula and S. luteola. It has finer and more numerous spirals than plicatula and a heavy spiral rib bounding the umbilicus, resembling that of S. luteola. However, the deeper-water S. luteola differs in being smooth except for the early spire whorls and in having a distinctive colour pattern of light red chevrons in two series, one sutural and the other peripheral.

Distribution

Solariella vera: Habitat New Zealand: Off Spirit's Bay, 59m. (type locality); and between Spirit's Bay and Three Kings Islands, 95 m.
Author: Jan Delsing

Links and literature

EN Galli C.: WMSDB - Wolrdwide Mollusc Species Data Base July 10, 2013 [http://www.bagniliggia.it/WMSD/WMSDhome....] [as Solariella vera (Powell, 1937)]
Data retrieved on: 22 November 2013

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