Tag Archives: Akamaru

Minidonta taunensis Solem & Cooke

Tauna Disc Snail (Minidonta taunensis)  

This species was described in the year 1976 on the basis of two specimens, which had been found in the year 1934 on the small coral islet Tauna in the Gambier Archipelago, sitting on dead leaves.  

The shells reach an average size of 0,22 cm in diameter.  

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The Tauna Disc Snail was for a long time known only from the typus material, but then, in the year 1997, shells of this species were also found on the islands of Akamaru and Kouaku.  

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References:  

[1] Alan Solem: Endodontoid land snails from Pacific Islands (Mollusca: Pulmonata: Sigmurethra). Part I, Family Endodontidae. Field Museum of Natural History Chicago, Illinois 1976 
[2] Ahmed Abdou; Philippe Bouchet: Nouveaux gastéropodes Endodontidae et Punctidae (Mollusca, Pulmonata) récemment éteints da l’archipel des Gambier (Polynésie). Zoosystema 22(4): 689-707. 2000  

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edited: 23.09.2017

Minidonta simulata Solem & Cooke

Gambier Islands Minidonta Snail (Minidonta simulata)  

This species was described in 1976.  

The species was originally known from specimens that had been collected on the islands of Agakuitai, Aukena and Mangareva, Gambier Islands, but was subsequently found on Akamaru and Taravai too. [1][2]  

The shells are quite large for the genus, reaching about 0,24 to 0,29 cm in diameter. [1]  

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References  

[1] Alan Solem: Endodontoid land snails from Pacific Islands (Mollusca: Pulmonata: Sigmurethra). Part I, Family Endodontidae. Field Museum of Natural History Chicago, Illinois 1976 
[2] Olivier Gargominy; Benoît Fontaine: A Global Overview of the Terrestrial and Freshwater Molluscs. In: Jean-Yves Meyer; Elin. M. Claridge: Biodiversity of the Austral Islands, French Polynesia. Muséum national d´Histoire naturelle, Paris. 55-91. 2014  

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edited: 05.10.2017

Nesiocina gambierensis Richling & Bouchet

Gambier Islands Nesiocina Snail (Nesiocina gambierensis)  

This species was described in 2013 based on only 11 highly eroded and worn specimens that were found on three islands of the Gambier Islands group.  

The species was the smallest member of its genus, the tiny shells are only about 1,5 to 1,8 cm in diameter.  

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[1] Ira Richling; Philippe Bouchet: Extinct even before scientific recognition: a remarkable radiation of helicinid snails (Helicinidae) on the Gambier Islands, French Polynesia. Biodiversity and Conservation 22: 2433-2468. 2013  

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edited: 10.10.2017

Minidonta micra Solem & Cooke

Minute Minidonta Snail (Minidonta micra)  

This species was described in 1976 based on specimens that had been collected in 1934 from a cave on the tiny islet of Aukena in the Gambier group.  

The shells are very small, only about 0,16 to 0,19 cm in diameter. [1]  

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The species was originally known only from Aukena, but other specimens were subsequently found on the islands of Akamaru, Mangareva and Taravai as well. [2]  

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References:  

[1] Alan Solem: Endodontoid land snails from Pacific Islands (Mollusca: Pulmonata: Sigmurethra). Part I, Family Endodontidae. Field Museum of Natural History Chicago, Illinois 1976 
[2] Ahmed Abdou; Philippe Bouchet: Nouveaux gastéropodes Endodontidae et Punctidae (Mollusca, Pulmonata) récemment éteints da l’archipel des Gambier (Polynésie). Zoosystema 22(4): 689-707. 2000  

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edited: 04.10.2017

Anceyodonta soror Solem

Soror Disc Snail (Anceyodonta soror)  

The Soror Disc Snail was described in the year 1976, the specie was originally known only from the island of Mangareva but empty shells assignable to this species were also found on nearby Akamaru island in 2000. [2]  

The shell reaches sizes of averagely 0,22 to 0,3 cm in diameter.  

The Soror Disc Snail is now extinct like almost all endemic or native land snail species of the Gambier Islands.  

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References:  

[1] Alan Solem: Endodontoid land snails from Pacific Islands (Mollusca: Pulmonata: Sigmurethra). Part I, Family Endodontidae. Field Museum of Natural History Chicago, Illinois 1976 
[2] Ahmed Abdou; Philippe Bouchet: Nouveaux gastéropodes Endodontidae et Punctidae (Mollusca, Pulmonata) récemment éteints da l’archipel des Gambier (Polynésie). Zoosystema 22(4): 689-707. 2000

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edited: 10.09.2020