VOCAB QUIZ Name: ____________________ Date: ____________________ Directions: Fill in the missing word or definition 1. _________________: A series of sharp ridges radiating from the center of a corallite cup. 2. Fringing reef: 3. _________________: A ring of coral reed with steep outer slopes and enclosing a shallow lagoon. 4. Barrier reef: 5. Coluemlla: 6. _________________: The cup-shaped calcium skeleton in which a coral polyp sits.