Egg-laying Behavior in Lithasia armigera (Say, 1821) (Gastropoda: Cerithioidea: Pleuroceridae)

Jeremy Tiemann^1,*, Trisha Gibson², Jacqualyn Halmbacher^2,3, and G. Thomas Watters²

¹Illinois Natural History Survey, Prairie Research Institute at the University of Illinois, Champaign, IL 61820. ²Ohio State University and Columbus Zoo and Aquarium, Columbus, OH 43212.³US Fish and Wildlife Service, Inks Dam National Fish Hatchery, Burnet, TX 78611. *Corresponding author.

Northeastern Naturalist,Volume 28, Issue 2 (2021): N27–N29

Abstract
Lithasia armigera (Armored Rocksnail) is an imperiled pleurocerid (Gastropoda: Cerithioidea: Pleuroceridae) historically found throughout the Ohio River drainage. Its reproductive behaviors, like most aquatic gastropods, are poorly understood. We began propagating Armored Rocksnail in captivity, and herein report on the egg-laying behaviors of the species. These data can help natural resource and conservation managers prepare propagation and recovery plans to help conserve at-risk species.

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