Mollusc That Has a Hinged Shell
This page is the CodyCross answer for the clue below from All Things Water, Group 1294, Puzzle 3 (Reservoirs).
Question is: Mollusc That Has a Hinged Shell
and the answer is: BIVALVE
Word Meaning:
BIVALVE — Any mollusc belonging to the taxonomic class Bivalvia, characterized by a shell consisting of two hinged sections, such as a scallop, clam, mussel or oyster.
Definitions from Wiktionary.