Tag Archives: Gyrotoma

Gyrotoma lewisii (Lea)

Striate Slitsnail (Gyrotoma lewisii)

The Striate Slitsnail was described in 1869, like all members of its genus, it was endemic to the Coosa River in Alabama, USA and disappeared after the impoundment of the river system in the early 20th century.

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Depiction from: ‘Calvin Goodrich: The genus Gyrotoma. University of Michigan 1924’

(public domain)

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edited: 07.05.2019

Gyrotoma excisa (Lea)

Excited Slitsnail (Gyrotoma excisa)

The Excited Slitsnail was described in 1843, it was endemic to the Coosa River in Alabama, USA and disappeared at the beginning of the 20th century when the rivers system was impounded. 

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Depiction from: ‘Calvin Goodrich: The genus Gyrotoma. University of Michigan 1924’

(public domain)

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edited: 07.05.2019

Gyrotoma pagoda (Lea)

Pagoda Slitsnail (Gyrotoma pagoda)

The Pagoda Slitsnail was described in 1845, it was endemic to the middle flow of the Coosa River in Alabama, USA.

The species died out, together with its five congeneric siblings, following the impondment of the river at the beginning of the 20th century.

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Depiction from: ‘Calvin Goodrich: The genus Gyrotoma. University of Michigan 1924’

(public domain)

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edited: 07.05.2019