Invertebrates Alphabet Quiz

Try to name an invertebrate for each letter of the alphabet. This quiz includes invertebrates of any type except for insects and arachnids, since I already have a separate quiz for them.
Quiz by
WunderGans
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Last updated: October 3, 2023
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First submittedOctober 3, 2023
Times taken40
Average score53.8%
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Letter
Clue
Answer
A
This animal is best known for its symbiotic relationship with clown fish.
Anemone
B
A shell-less yellow land mollusk named after a fruit.
Banana Slug
C
A creature with dozens of legs and poisonous pinchers.
Centipede
D
A deep-sea cephalopod named after an elephant.
Dumbo Octopus
E
A tiny, slimy, snake-like creature that lives in the dirt.
Earthworm
F
This crustacean is well-known for its asymmetrically-sized appendages.
Fiddler Crab
G
A massive deep-sea cephalopod.
Giant Squid
H
A crustacean known for using discarded shells of other animals.
Hermit Crab
I
A stinging sea creature that does not die of old age, but rather repeats its life cycle over and over again until it's killed.
Immortal Jellyfish
J
A soft-bodied sea creature that can sting you even after it's dead.
Jellyfish
K
This small marine crustacean is the main prey of baleen whales.
Krill
L
A large, strong crustacean that swims backwards with its tail.
Lobster
M
A cephalopod that copies other animals as a defense mechanism.
Mimic Octopus
N
A cephalopod with a shell.
Nautilus
O
Pearls are harvested from this animal.
Oyster
P
This tiny crustacean can make a sound louder than a blue whale with the snap of its claw.
Pistol Shrimp
Q
The official state shellfish of Rhode Island. I'm not even joking.
Quahog
R
A land crustacean that curls up into a ball as a defence mechanism.
Rollie Pollie
S
This animal will not only regrow its arm if it loses it, but that arm might even grow a new body.
Starfish
T
This microscopic animal can survive in virtually any environment, even the vacuum of space.
Tardigrade
U
A living ball of spikes.
Urchin
V
This deep-sea cephalopod shoots bioluminescent mucus rather than ink.
Vampire Squid
W
A land-dwelling mollusk from around the Mediterranean. It is NOT black and can be found around homes. (This one's really hard to think of a clue for, I'm doing my best!)
White Garden Snail
X
This land-dwelling species of shelled, slow-moving land mollusk whose name means "very dry" and "hardened tree sap". (It was hard to find an invertebrate whose name starts with 'x', ok?)
Xeric Ambersnail
Y
A deep-sea crustacean which harvests bacteria from thermal vents.
Yeti Crab
Z
A species of marine gastropod whose name means "west wind" in Greek.
Zephyra Nudibranch
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1 Comments
+1
Level 43
Mar 31, 2025
First of all, centipedes are venomous, not poisonous.

Second, please also accept "roly-poly", as that is the only spelling Wikipedia gives as a correct one.