Crustaceans
*Bonus points*
This shrimp catches its prey by snapping its chelipeds in such a way that it makes a really loud popping sound?
Pistol Shrimp
This is formed from a grain of sand, over the years, layers of shell material form this expensive stone?
Pearls
This odd-looking creature blows a jet of water out of its hyponome to uncover its prey?
Cuttlefish
A flattened sea urchin with tiny spikes?
Sand Dollar
Which jellyfish is the deadliest?
Box Jellyfish
Crustaceans use these claws to capture prey and fight?
Chelipeds
This ferocious predator drills a hole right into a bivalve's shell and sucks its prey?
Whelks
*Bonus points*
This creature has more arms than any other cephalopod, and it is the only one that creates an external shell?
Nautilus
This sea creature can clone an exact copy of itself, as long as it has part of the central disk attached?
Sea stars
These cnidarians have dangling tentacles?
Medusas
These little bumps have living crustaceans inside of them, they make a very powerful glue, and like to stick to the bottom of boats?
Barnacles
This fan shaped mollusk is the fastest swimming bivalve. It claps its shell to swim?
Scallop
What does "chepalopod" mean?
Head Foot
*Bonus Points*
A sea urchin has five special teeth called?
Aristotle's Lantern
What is the name of the largest jellyfish?
Lion's Mane Jellyfish
Over 100 million of these crabs take over Christmas Island?
The red crab
*Bonus points*
Snail use this thick pad as a door to shut themselves in their shells for protection?
Operculum
This cephalopod has large eyes, a large brain, and eight arms. When frightened it releases black ink?
Octopus
These creatures have their mouth facing up which is surrounded by many feathery tentacles, it includes the sea lilies and feather stars?
Crinoids
These cnidarians have waving tentacles?
Polyps
They have teeth in their stomach to chew food, can be cannibals, and are quite aggressive with one another?
Lobsters
These two shell halves mollusks are shaped like a fan and they are the most common seashells that wash up ashore?
Bivalve
This cephalopod has ten arms, eight regular ones, and two super long feeding arms, and an arrow-shaped body?
Squid
This echinoderm literally spills its guts out when a predator is nearby?
A sea cucumber
*Bonus Points*
These 2 animals are known as the flower-animal of the sea?
Corals & Sea Anemones