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Antarctoneptunea benthicola facts for kids

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Antarctoneptunea benthicola
Temporal range: Early Pleistocene to Recent, 2.4–0.0Ma
Penion benthicolus 002.jpg
Apertural view of a shell of Antarctoneptunea benthicola
Scientific classification
Kingdom:
Phylum:
Class:
(unranked):
clade Caenogastropoda
clade Hypsogastropoda
clade Neogastropoda
Superfamily:
Buccinoidea
Family:
Genus:
Antarctoneptunea
Species:
A. benthicola
Binomial name
Antarctoneptunea benthicola
(Dell, 1956)
Synonyms
  • Penion benthicolus Dell, 1956
  • Penion benthicolus delli Powell, 1971.

Antarctoneptunea benthicola is a species of small-to-medium-sized predatory sea snail or whelk, a marine gastropod mollusc in the family Buccinidae, the true whelks.

Description

Antarctoneptunea benthicola is a small-to-medium-sized species of marine snail in the genus Antarctoneptunea, the shell reaches 100 mm in height and 40 mm in diameter.

Distribution

This species is endemic to New Zealand. The species occurs in deep-water, and its range extends from off the northern coast of the North Island to the New Zealand Subantarctic Islands.

A. benthicola also has a Pleistocene fossil record in the South Island.

Taxonomy

The species was formerly recognised as Penion benthicolus, but evolutionary trees based on mitochondrial and nuclear ribosomal DNA sequence data, as well as geometric morphometric analysis of shell shape and size, indicate that the species belongs to Antarctoneptunea.

A subspecies, Penion benthicolus delli Powell, 1971 was formerly recognized, but this taxon has since been demonstrated to be indistinguishable from other P. benthicolus based on shell morphology.

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