Gyrotoma Explained

Gyrotoma is a genus of extinct freshwater snails with an operculum, aquatic gastropod mollusks in the family Pleuroceridae. This genus was endemic to the USA.

All of the species within this genus are presumed extinct. They were native to the main channel of the Coosa River in Alabama, where the last suitable habitat was destroyed by the filling of the reservoir Logan Martin Lake in the mid-1960s.^[1]

Species

Species within the genus Gyrotoma include:

• Gyrotoma excisa (I. Lea, 1843) – excised slitshell
• Gyrotoma lewisii (I. Lea, 1869) – striate slitshell
• Gyrotoma pagoda (I. Lea, 1845) – pagoda slitshell
• Gyrotoma pumila (I. Lea, 1860) – ribbed slitshell
• Gyrotoma pyramidata (Shuttleworth, 1845) – pyramid slitshell
• Gyrotoma walkeri (H. H. Smith, 1924) – round slitshell

Further reading

• Goodrich C. (1924). "The genus Gyrotoma". Miscellaneous Publications University of Michigan, Museum of Zoology, 12: 1-29.

Notes and References

1. Book: http://www.sherpaguides.com/southeast/aquatic_fauna/chapter_3/. Neves. Richard J.. Bogan. Arthur E.. Williams. James D.. Ahlstedt. Steven A.. Hartfield. Paul W.. 21 June 2023. Aquatic Fauna in Peril: The Southeastern Perspective. Lenz Design & Communications. 0965484106. 1999. Benz. George W.. Collins. David E.. Status of Aquatic Mollusks in the Southeastern United States: A Downward Spiral of Diversity. sherpaguides.com.