Ecological Risk Screening Summary - Cockscomb Hydrobe (Littoridinops monroensis) - Uncertain Risk

Littoridinops monroensis, the Cockscomb Hydrobe, is a mollusk that is native to the Bahamas, Cuba, and the southeastern United States. L. monroensis is a small snail that lives in brackish and freshwater. There are no known uses for Littoridinops monroensis and it doesn’t appear to be available for sale within the United States, nor are there any regulations regarding the species. Littoridinops monroensis can be a host of the endoparasite Ascocotyle gemina. The History of Invasiveness for Littoridinops monroensis is classified as Data Deficient due to no information being available on the impacts of introduction, despite documented nonnative populations becoming established in California and western Cuba. The climate matching analysis for the contiguous United States indicates establishment concern for this species outside its native range. Areas of high match were found in the east and southeast, primarily from eastern Texas to southern New York, as well as in California. The Certainty of Assessment for this ERSS is classified as Low due to the lack of information available regarding impacts from the known introductions. The Overall Risk Assessment Category for Littoridinops monroensis in the contiguous United States is Uncertain.

Species that are considered uncertain risk need a more in-depth assessment beyond the Risk Summary to better define the species’ risk to U.S. environments.