Bible Dictionaries
Thoracostraca

Webster's Dictionary

(a.) An extensive division of Crustacea, having a dorsal shield or carapec/ //niting all, or nearly all, of the thoracic somites to the head. It includes the crabs, lobsters, shrimps, and similar species.

Bibliography Information
Webster, Noah. Entry for 'Thoracostraca'. Noah Webster's American Dictionary. https://www.studylight.org/​dictionaries/​eng/​web/​t/thoracostraca.html. 1828.