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Choice: 264a
Animal without a visible external shell
Choice: 264b
External shell consists of one single structure
Choice: 264c
External shell bivalved, the two valves hinge along one edge
Choice: 264d
External shell consists of 8 overlapping shell valves, encircled by a soft, uncalcified skirt

Fuzzy chiton
Acanthopleura granulata
Choices made: 2
Remaining: 28
Excluded: 374
Page 264: Molluscs