Squilla \Squil"la\, n.; pl. E. Squillas, L. Squill[ae]. [L., a sea onion, also, a prawn or shrimp. See Squill.]

(Zo["o]l.) Any one of numerous stomapod crustaceans of the genus Squilla and allied genera. They make burrows in mud or beneath stones on the seashore. Called also mantis shrimp. See Illust. under Stomapoda.

Source: Webster's Revised Unabridged Dictionary (1913)