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Eatoniella mortoni

Eatoniella mortoni
Eatoniella (Dardanula) mortoni (Ponder, 1965) (AM MA71262).jpg
Holotype of Eatoniella mortoni from Auckland War Memorial Museum
Scientific classification
Kingdom: Animalia
Phylum: Mollusca
Class: Gastropoda
Subclass: Caenogastropoda
Order: Littorinimorpha
Family: Eatoniellidae
Genus: Eatoniella
Species:
E. mortoni
Binomial name
Eatoniella mortoni
(Ponder, 1965)
Synonyms
  • Eatoniella (Dardanula) mortoni Ponder 1965

Eatoniella mortoni is a species of marine gastropod mollusc in the family Eatoniellidae. First described by Winston Ponder in 1965, it is endemic to the waters of New Zealand. The species has been used to study the effects of ocean acidification, as it is known to thrive in carbon dioxide-rich environments.

Taxonomy

The species was first identified as Eatoniella (Dardanula) mortoni by Winston Ponder, who named the species after New Zealand biologist John Morton. Morton had assisted Ponder during his early investigations into the species.

Description

Eatoniella mortoni has a solid, conical, smooth shell. The shells are widely variable in colour, from purple-tinted dark grey to pale yellow-grey. The species measures 1.85 millimetres by 1.13 millimetres.

Distribution

The species is often found living on kelp such as Ecklonia radiata

The species is endemic to New Zealand. The holotype was collected by Ponder himself on 11 December 1961, at Days Bay in Wellington. The species is known to occur on both coasts of the North Island and South Island. In addition, the species can be found on the Chatham Islands and the volcanic island Whakaari / White Island.

Typically the species can be found on algae at low tide, found underneath intertidal rocks and often lives on kelp species such as Ecklonia radiata.

Ocean acidification studies

Different angle views of an Eatoniella mortoni specimen found in the Abel Tasman National Park

Eatoniella mortoni has been used as a species to study ocean acidification, as the species benefits from living in carbon dioxide-rich environments and remains localised, especially specimens sourced from the volcanic island Whakaari / White Island, due to their lifetime exposure to carbon dioxide vents. Eatoniella mortoni can produce more crystalline, durable and less porous shells at natural carbon dioxide vents.


This page was last updated at 2022-11-24 01:00 UTC. Update now. View original page.

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