Biology:Asperdaphne esperanza

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Short description: Species of gastropod

Asperdaphne esperanza
Asperdaphne esperanza 001.jpg
Original image of a shell of Asperdaphne esperanza
Scientific classification edit
Domain: Eukaryota
Kingdom: Animalia
Phylum: Mollusca
Class: Gastropoda
Subclass: Caenogastropoda
Order: Neogastropoda
Superfamily: Conoidea
Family: Raphitomidae
Genus: Asperdaphne
Species:
A. esperanza
Binomial name
Asperdaphne esperanza
(May, 1911)
Synonyms[1]

Hemipleurotoma esperanza May, 1911

Asperdaphne esperanza is a species of sea snail, a marine gastropod mollusk in the family Raphitomidae.[1]

Description

The length of the shell attains 5.3 mm, its diameter 2 mm.

(Original description) The dull white shell is high, attenuate anteriorly. It contains six whorls, strongly angular, and including a smooth blunt two-whorled protoconch. A strong keel angles the periphery, another less strong halfway to the lower suture, and a third margins the suture. On the upper slope are two or more faint spirals. Numerous axial lirae cancellate the shell and pass over the keels, rendering them nodulous. They disappear on the lower part of the body whorl, which is occupied by about eight smooth spirals. The aperture is subquadrate, contracted in front to form a short open siphonal canal. The outer lip is strongly angled at the carena, forming a wide, triangular sinus; below corrugated by the sculpture. The inner lip is curved. [2]

Distribution

This marine species is endemic to Australia and occurs off Tasmania.

References

  • May, W.L. 1923. An illustrated index of Tasmanian shells: with 47 plates and 1052 species. Hobart : Government Printer 100 pp.

External links

Wikidata ☰ Q3719783 entry