Large Gambiodonta Snail (Gambiodonta grandis)
The Large Gambiodonta Snail was described in 1976 (together with all other members of its genus), it is known from 259 specimens collected in 1934, 32 from the islet of Agakauitai and 227 from Aukena Islet, Gambier Islands.
The Large Gambiodonta Snail was the largest member of its genus known so far, the shell of the holotype reached 0,85 cm in heigth and 1,18 cm in diameter. [1]
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The whole genus apparently disappeared shortly after the arrival of the first Polynesians on 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
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edited: 19.04.2019
Tag Archives: Gambiodonta
Gambiodonta mangarevana Solem & Cooke
Mangarevan Gambiodonta Snail (Gambiodonta mangarevana)
The Mangarevan Gambiodonta Snail was described in 1976 based on only six specimens, two adults and four juveniles, that had been collected in 1934 on the island of Mangareva, Gambier Islands.
The species is quite similar to the Domed Gambiodonta Snail (Gambiodonta tumida Cooke & Solem) but smaller, its shells reached average sizes of about 0,45 cm in diameter. [1]
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The species occurred also on the small island of Taravai, next to Mangareva Island, where its subfossil shells were discovered during field searches in 1997. [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: Noveaux gastéropodes Endodontidae et Punctidae (Mollusca, Pulmonata) récemment éteints de l’archipel des Gambier (Polynésie). Zoosystea 22(4): 689-707. 2000
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edited: 19.04.2019
Gambiodonta mirabilis Cooke & Solem
Miraculous Gambiodonta Snail (Gambiodonta mirabilis)
The Miraculous Gambiodonta Snail was described in 1976 based on 39 specimens that had been collected in 1934, 4 on the islet of Aukena and 35 on Mangareva Island, Gambier Islands.
The shells reached average sizes of 0,5 to 0,58 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
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edited: 19.04.2019
Gambiodonta agakauitaiana Solem & Cooke
Agakauitai Gambiodonta Snail (Gambiodonta agakauitaiana)
This species was described in 1976 based on specimens that had been collected in 1934 on the small islet of Agakauitai which lies about 300 m south of Mangareva, Gambier Islands.
The shells reached sizes of 0,39 to 0,4 cm in dimater. [1]
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The species was originally only known from the small islet of Agakauitai, but subfossil shells were discovered in 1997 on the islands of Mangareva and Taravai, the two largest of the Gambier Islands, 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: Noveaux gastéropodes Endodontidae et Punctidae (Mollusca, Pulmonata) récemment éteints de l’archipel des Gambier (Polynésie). Zoosystea 22(4): 689-707. 2000
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edited: 19.04.2019
Gambiodonta pilsbryi Cooke & Solem
Pilsbry’s Gambiodonta Snail (Gambiodonta pilsbryi)
This species was described in 1976 based on 88 specimens that had been collected in 1934 near the Gahutu Bay (often referred to as Ganhutu) on the island of Mangareva, Gambier Islands.
The shells reached average sizes of 0,45 to 0,53 cm in diameter. [1]
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There are also 79 specimens collected in 1934 on the islet of Aukena, 5 km southeast of Mangareva which originally were described as a distinct subspecies (Gambiodonta pilsbryi ssp. aukenensis Cooke & Solem), but this classification was later rejected. [1][2]
The species also occurred on the islet of Agakauitai, offshore Mangareva Island, where subfossil shells were recovered during field searches in 1997. [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: Noveaux gastéropodes Endodontidae et Punctidae (Mollusca, Pulmonata) récemment éteints de l’archipel des Gambier (Polynésie). Zoosystea 22(4): 689-707. 2000
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edited: 19.04.2019
Gambiodonta tumida Cooke & Solem
Dome-shaped Gambiodonta Snail (Gambiodonta tumida)
The Dome-shaped Gambiodonta Snail was described in 1976 based on 33 specimens that had been collected in 1934 on the island of Mangareva, Gambier Islands.
The shells reached average sizes of 0,58 to 0,64 cm in diameter. [1]
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The Dome-shaped Gambiodonta Snail was originally known only from specimens collected on the island of Mangareva alone, however, further subfossil shells were later discovered on the islets of Aukena and Taravai, offshore Mangareva Island 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: Noveaux gastéropodes Endodontidae et Punctidae (Mollusca, Pulmonata) récemment éteints de l’archipel des Gambier (Polynésie). Zoosystea 22(4): 689-707. 2000
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edited: 19.04.2019