What is "h aspersa"

Edible \Ed"i*ble\, a. [L. edibilis, fr. edere to eat. See Eat.] Fit to be eaten as food; eatable; esculent; as, edible fishes.
--Bacon. -- n. Anything edible.

Edible bird's nest. See Bird's nest, 2.

Edible crab (Zo["o]l.), any species of crab used as food, esp. the American blue crab ( Callinectes hastatus). See Crab.

Edible frog (Zo["o]l.), the common European frog ( Rana esculenta), used as food.

Edible snail (Zo["o]l.), any snail used as food, esp. Helix pomatia and H. aspersa of Europe.