Archerfish
Barracuda
Clam
Damselfish
Eel (Electric)
Flounder
Great White Shark
Hogchoker
Ichthyosaurus
Jellyfish
King Crab
Lemon Shark
Manatee
Narwhal
Octopus
Pufferfish
Quahog
Reaper Leviathan (do fictional video game aquatic critters count)
Archerfish
Barracuda
Clam
Damselfish
Eel (Electric)
Flounder
Great White Shark
Hogchoker
Ichthyosaurus
Jellyfish
King Crab
Lemon Shark
Manatee
Narwhal
Octopus
Pufferfish
Quahog
Reaper Leviathan (do fictional video game aquatic critters count)
Sea snake
(If “reaper leviathan” doesn’t work, you could always substitute “ray, manta.”)
Archerfish
Barracuda
Clam
Damselfish
Eel (Electric)
Flounder
Great White Shark
Hogchoker
Ichthyosaurus
Jellyfish
King Crab
Lemon Shark
Manatee
Narwhal
Octopus
Pufferfish
Quahog
Reaper Leviathan (do fictional video game aquatic critters count)
Sea snake
Tuna
Archerfish
Barracuda
Clam
Damselfish
Eel (Electric)
Flounder
Great White Shark
Hogchoker
Ichthyosaurus
Jellyfish
King Crab
Lemon Shark
Manatee
Narwhal
Octopus
Pufferfish
Quahog
Reaper Leviathan (do fictional video game aquatic critters count)
Sea snake
Tuna
Urchin
Objects shaped like letters, but the letter not used attributively in their name, like “A-frame”.
A - jumper-cable clamps
B - slave shackles
C - round wire hooks
D - Carabiner
E - Elizabethan manor
F- The Manhattan skyline before 9/11
G- C-clamp
H - Lincoln log vertebrae
I - Telephone pole
J - Fish hook
K - Jackknife
L - Bracket
M - the Batman symbol
N - Fence gate
O - doughnuts
P - Dolly Parton
Q - Pretzel (some, anyway)
R - Bobby-pin
S - hook