Neoguraleus protensus

Neoguraleus protensus is an extinct species of sea snail, a marine gastropod mollusk in the family Mangeliidae.[1]

Neoguraleus protensus
Shell of Neoguraleus protensus
Scientific classification
Kingdom: Animalia
Phylum: Mollusca
Class: Gastropoda
Clade: Caenogastropoda
Clade: Hypsogastropoda
Clade: Neogastropoda
Superfamily: Conoidea
Family: Mangeliidae
Genus: Neoguraleus
Species:
N. protensus
Binomial name
Neoguraleus protensus
(Hutton, 1885)
Synonyms[1]

† Daphnella protensa Hutton, 1885

Description

Two specimens turned up, which differ from the type by the predominating spiral sculpture and very feeble axial plications. Typically there are delicate spiral threads, but in our specimens there are distinct chords present, which are crossed by flexuous longitudinal striæ. Only the upper whorls are distinctly decussate. The protoconch, consisting of two smooth whorls, is much larger than in fossil specimens from Petane, more bulbose, and with an oblique nucleus.[2]

Distribution

This extinct marine species is endemic to New Zealand from Pliocene strata of Petane.

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References
  1. Marshall, B. (2015). Neoguraleus protensus (Hutton, 1885) †. In: MolluscaBase (2017). Accessed through: World Register of Marine Species at http://www.marinespecies.org/aphia.php?p=taxdetails&id=831719 on 2017-10-20
  2. R. Murdoch and H. Suter, Results of Dredging on the Continental Shelf of New Zealand; Transactions and Proceedings of the Royal Society of New Zealand Volume 38, 1905


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