Steromphala pennanti

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Steromphala pennanti
Gibbula pennanti 01.JPG
A shell of Steromphala pennanti
Scientific classification Red Pencil Icon.png
Kingdom: Animalia
Phylum: Mollusca
Class: Gastropoda
Subclass: Vetigastropoda
Order: Trochida
Superfamily: Trochoidea
Family: Trochidae
Genus: Steromphala
Species:
S. pennanti
Binomial name
Steromphala pennanti
(Philippi, 1846)
Synonyms [1]
  • Gibbula pennanti(Philippi, 1846)
  • Glibbulastra umbilicataMonterosato
  • Trochus obliquatusGmelin 1791
  • Trochus obliquatus var. pauperculaMonterosato 1888
  • Trochus pennantiPhilippi, 1846 (original description)
  • Trochus semiglobosusAradas, 1847 (dubious synonym)
  • Trochus umbilicalisForbes & Hanley

Steromphala pennanti is a species of small sea snail, a marine gastropod mollusc in the family Trochidae, the top snails. [1]

Contents

The species was named in honor of Thomas Pennant (1726 – 1798) was a Welsh naturalist.

Description

The size of the shell varies between 10 mm and 16 mm. The shell is more depressed than Gibbula cineraria , and (although the base is flatter) never inclined to a pyramidal form. The spiral ridges are sharper and fewer, especially in the young. The present species is usually more widely umbilicate and broader than Gibbula cineraria. The coloring is different; both have a similar kind of marking, but in the present species the longitudinal rays or streaks are red, besides being broader and not half so many as in the other species. And they are sometimes zigzag, instead of being broken into spots or interrupted by the sculpture. This species is striped, the other lineated. Just within the outer lip are two borders, one of yellow, the other of green variegated by red spots. This edging is minutely tubercled like shagreen. [2]

Distribution

This species occurs in the North Sea and off Spain.

Related Research Articles

Trochidae Family of snails

The Trochidae, common name top-snails or top-shells, are a taxonomic family of very small to large sea snails, marine gastropod molluscs in the clade Vetigastropoda.

<i>Trochus</i> Genus of gastropods

Trochus is a genus of medium-sized to large, top-shaped sea snails with an operculum and a pearly inside to their shells, marine gastropod molluscs in the family Trochidae, the top snails.

<i>Gibbula</i> Genus of gastropods

Gibbula is a genus of small sea snails, marine gastropod molluscs in the subfamily Cantharidinae of the family Trochidae, the top snails.

<i>Steromphala divaricata</i> Species of gastropod

Steromphala divaricata, common name the divaricate gibbula, is a species of small sea snail, known as top snails or top shells, marine gastropod molluscs in the family Trochidae, the top snails.

<i>Steromphala cineraria</i> Species of gastropod

Steromphala cineraria is a species of small sea snail, a marine gastropod mollusc in the family Trochidae, the top snails.

<i>Gibbula albida</i> Species of gastropod

Gibbula albida, common name the whitish gibbula, is a species of small sea snail, a marine gastropod mollusc in the family Trochidae, the top snails.

<i>Steromphala adansonii</i> Species of gastropod

Steromphala adansonii is a species of sea snail, a marine gastropod mollusk in the family Trochidae, the top snails.

<i>Steromphala adriatica</i> Species of gastropod

Steromphala adriatica is a species of sea snail, a marine gastropod mollusk in the family Trochidae, the top snails.

<i>Steromphala nivosa</i> Species of gastropod

Steromphala nivosa, common name the Maltese top shell, is a species of sea snail, a marine gastropod mollusk in the family Trochidae, the top snails.

<i>Gibbula racketti</i> Species of gastropod

Gibbula racketti is a species of sea snail, a marine gastropod mollusk in the family Trochidae, the top snails.

<i>Steromphala rarilineata</i> Species of gastropod

Steromphala rarilineata is a species of sea snail, a marine gastropod mollusk in the family Trochidae, the top snails.

<i>Steromphala spratti</i> Species of gastropod

Steromphala spratti is a species of sea snail, a marine gastropod mollusk in the family Trochidae, the top snails.

<i>Steromphala umbilicalis</i> Species of gastropod

Steromphala umbilicalis, common name the flat top shell, is a species of sea snail, a marine gastropod mollusk in the family Trochidae, the top snails.

<i>Steromphala umbilicaris</i> Species of mollusc

Steromphala umbilicaris is a species of sea snail, a marine gastropod mollusk in the family Trochidae, the top snails.

<i>Steromphala varia</i> Species of gastropod

Steromphala varia is a species of sea snail, a marine gastropod mollusk in the family Trochidae, the top snails.

<i>Phorcus mutabilis</i> Species of gastropod

Phorcus mutabilis is a species of sea snail, a marine gastropod mollusk in the family Trochidae, the top snails.

Cantharidinae Subfamily of gastropods

The Cantharidinae are a taxonomic subfamily of very small to large sea snails, marine gastropod molluscs in the family Trochidae, common name top snails.

<i>Phorcus articulatus</i> Species of gastropod

Phorcus articulatus is a species of sea snail, a marine gastropod mollusk in the family Trochidae, the top snails.

<i>Priotrochus kotschyi</i> Species of gastropod

Priotrochus kotschyi, common name the Kotschy's gibbula, is a species of sea snail, a marine gastropod mollusk in the family Trochidae, the top snails.

<i>Steromphala</i> Genus of gastropods

Steromphala is a genus of sea snails, marine gastropod mollusks in the subfamily Cantharidinae of the family Trochidae, the top snails.

References

  1. 1 2 MolluscaBase eds. (2020). MolluscaBase. Steromphala pennanti (Philippi, 1846). Accessed through: World Register of Marine Species at: http://marinespecies.org/aphia.php?p=taxdetails&id=1039846 on 2020-12-30
  2. ↑ Tryon (1889), Manual of Conchology XI, Academy of Natural Sciences, Philadelphia (described as Gibbula obliquata)
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