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Slipper Limpet

Image Credit: GBNNSS

Status: Not yet established

Habitat: Marine

Threat: Habitat alteration


  • snail with a reduced apical spire or apex, and large aperture with distinctive inner shell
  • smooth shell with irregular growth lines
  • commonly found attached to others in curved chains of up to 12 snails.


  • competes with native bivalve molluscs for space and food, reproduces very rapidly and consequently blankets whole areas of the sea floor
  • believed to be moved primarily via the oyster trade, also by attaching itself to boat hulls.


  • poses serious threat to the oyster industry
  • filters out plankton; its deposits of shell and waste particles change the texture and nature of sediment
  • can smother other organisms, reducing biodiversity and plant abundance.


Following the Government’s advice in relation to COVID-19, Loughs Agency has put in place a number of measures to maximise our capacity to continue to deliver our services as best we can.