Bible Dictionaries
Tectibranchiata

Webster's Dictionary

(n. pl.) An order, or suborder, of gastropod Mollusca in which the gills are usually situated on one side of the back, and protected by a fold of the mantle. When there is a shell, it is usually thin and delicate and often rudimentary. The aplysias and the bubble shells are examples.

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