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Taxonomy
Family: Subfamily:
TROCHIDAE: CANTHARIDINAE
Full Classification:
Mollusca (Phylum)
> Gastropoda (Class)
> Vetigastropoda (Subclass)
> Trochida (Order)
> Trochoidea (Superfamily)
> Trochidae (Family)
> Cantharidinae (Subfamily)
> Roseaplagis (Genus)
> mortenseni (Species)
Synonymised Names:
=Cantharidus mortenseni (Odhner, 1924)
=Gibbula mortenseni Odhner, 1924
=Micrelenchus (Plumbelenchus) mortenseni (Odhner, 1924)
=Micrelenchus caelatus archibenthicola Dell, 1956
=Micrelenchus mortenseni (Odhner, 1924)
=Micrelenchus sanguineus morioria Powell, 1933
Images: Roseaplagis mortenseni (Odhner, 1924)
In beach drift, Chatham Islands, NZ. 6mm. © rights reserved
In beach drift, Chatham Islands, NZ. 6mm. © rights reserved
In beach drift, Chatham Islands, NZ. 5mm. © rights reserved
In beach drift, Chatham Islands, NZ. 5mm. © rights reserved
Holotype of Micrelenchus sanguineus morioria, collected Feb 1933, off Owenga Beach, Chatham Islands, NZ (MA70471). ~5mm. © Auckland Museum (CC-BY)
Taxonomy
Family: Subfamily:
TROCHIDAE: CANTHARIDINAE
Full Classification:
Mollusca (Phylum)
> Gastropoda (Class)
> Vetigastropoda (Subclass)
> Trochida (Order)
> Trochoidea (Superfamily)
> Trochidae (Family)
> Cantharidinae (Subfamily)
> Roseaplagis (Genus)
> mortenseni (Species)
Synonymised Names:
=Cantharidus mortenseni (Odhner, 1924)
=Gibbula mortenseni Odhner, 1924
=Micrelenchus (Plumbelenchus) mortenseni (Odhner, 1924)
=Micrelenchus caelatus archibenthicola Dell, 1956
=Micrelenchus mortenseni (Odhner, 1924)
=Micrelenchus sanguineus morioria Powell, 1933
Details: Roseaplagis mortenseni (Odhner, 1924)
Size/Grows to:
Height 7mm, Width 6mm
Distribution:
Southern South Island as far north as Oamaru, and Stewart, Snares, Auckland, Campbell, Antipodes, Bounty and Chatham Islands, Macquarie Ridge and Mernoo Bank, from 8-640m
Type Data:
  • Off Owenga, Chatham Islands, NZ, (type of Micrelenchus sanguineus morioria Powell, 1933)
  • 475-650 metres, Karitane Canyon, off Otago Peninsula, NZ, (paratype of Micrelenchus caelatus archibenthicola Dell, 1956)
  • 550 metres, Taiaroa Canyon, off Taiaroa Head, NZ, (type of Micrelenchus caelatus archibenthicola Dell, 1956)
  • 82 metres, Carnley Harbour, Auckland Islands, NZ, (lectotype, paralectotype)
Notes:
Marine, Native - Endemic
Distribution Map
 
References and Publications
  • Donald, K.M., Spencer, H.G. 2016 Phylogeographic patterns in New Zealand and temperate Australian cantharidines (Mollusca: Gastropoda: Trochidae: Cantharidinae): Trans-Tasman divergences are ancient, Molecular Phylogenetics and Evolution, 100 (p.341)
  • Marshall, B.A. 1998 The New Zealand Recent species of Cantharidus Montfort, 1810 and Micrelenchus Finlay, 1926 (Mollusca: Gastropoda: Trochidae), Molluscan Research, 19 (p.144)
  • Powell, A.W.B. 1979 New Zealand Mollusca: Marine, Land and Freshwater Shells, Collins, Auckland (p.56)
  • Odhner, N.H. 1924 Papers from Dr. Th. Mortensen's Pacific Expedition 1914–1916. XIX. New Zealand Mollusca, Videnskabelige Meddelelser fra Dansk Naturhistorisk Forening i Kjobenhavn, 77 (p.14) Original Description

NZ Geographical Regions
Key to symbols used in Checklist.
Fw =
Freshwater
L =
Land
N =
North Island
S =
South Island
R =
Recent
Sf =
Subfossil
Fo =
Fossil
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