Origin:
L squilla, scilla, prawn, shrimp, sea onion: see squill
See squilla in American Heritage Dictionary 4
nounpl.squil·las or squil·lae(skwĭlˈēˌ)
Any of various burrowing predatory marine crustaceans of the order Stomatopoda, having movable stalked eyes and a pair of jointed grasping appendages. Also called mantis crab, mantis shrimp.