Florida Cave Shrimp
CR

Florida Cave Shrimp

Palaemonetes cummingi

Unknown

Photo: Photo: Wikimedia Commons, CC BY-SA

Overview

Palaemon cummingi, known as the Squirrel Chimney Cave shrimp or the Florida cave shrimp, is a threatened species of cave-dwelling shrimp in the family Palaemonidae. P. cummingi has been observed in one sinkhole called Squirrel Chimney in Alachua County, Florida near Gainesville. Although exact numbers are unknown, it is speculated that the current P. cummingi population is very small.

Palaemonetes cummingi faces severe threats from habitat destruction and water quality degradation in its limited freshwater range. Urban development and agricultural runoff have significantly reduced suitable habitat, while pollution from industrial activities continues to degrade remaining water bodies. The species' extremely restricted distribution makes it particularly vulnerable to localized environmental changes.

Threat summary

Habitat

This freshwater shrimp inhabits shallow, slow-moving streams and springs with sandy or muddy substrates. It requires clean, well-oxygenated water with stable temperatures and minimal pollution levels.

Caves and subterranean habitats· major

Frequently asked questions

Why is Florida Cave Shrimp classified as Critically Endangered?
Florida Cave Shrimp is classified as Critically Endangered — facing an extremely high risk of extinction in the wild — because population sizes are very small, declining sharply, or restricted to a tiny range. Palaemonetes cummingi faces severe threats from habitat destruction and water quality degradation in its limited freshwater range. Urban development and agricultural runoff have significantly reduced suitable habitat, while pollution from industrial activities continues to degrade remaining water bodies. The species' extremely restricted distribution makes it particularly vulnerable to localized environmental changes.
Where does Florida Cave Shrimp live?
Florida Cave Shrimp occurs in United States. Country-level distribution data is sourced from the IUCN Red List and cross-referenced with GBIF occurrences.
What are the main threats to Florida Cave Shrimp?
The main threats to Florida Cave Shrimp are 1.1, 11.4, 7.3, and 8.1. The full IUCN-classified threat record for this species is detailed on the species page.

Get weekly conservation intelligence

One short digest a week of the most striking species and country data we ship, plus breaking conservation news paired with our database where it matters.

Free, no spam. One-click unsubscribe in every email.