Tag Archives: St. Clair County

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. 


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

(public domain)


edited: 07.05.2019

Elimia pupaeformis (I. Lea)

Pupa Elimia Snail (Elimia pupaeformis)  

This species was described in 1864.  

The Pupa Elimia Snail was restricted to a section of the Coosa River, from about Elmore – to St. Clair County, Alabama.  

The species disappeared after the impoundment of the river due to the building of dams and is now considered extinct.  


edited: 06.11.2017