Name an animal with a shell

The rarest possible answer — almost no player finds it.

• Argonaut— Female octopus that secretes her own paper-thin shell to brood eggs.

Genuinely obscure. Most players never think of it.

• Aama Crab
• Abaco Tortoise
• Acorn Barnacle
• Acorn Weevil
• Adanson's Mud Turtle
• African Dwarf Mud Turtle
• African Forest Turtle
• African Helmeted Terrapin
• African Keeled Mud Turtle
• African Sideneck Turtle
• Akiami Paste Shrimp
• Alabama Map Turtle
• Alabama Red-Bellied Cooter
• Alamos Mud Turtle
• Aldabra tortoise
• Alligator snapping turtle
• Alphabet Cone
• Amboina Box Turtle
• Ambrosia Beetle
• American Cockroach
• American Horseshoe Crab
• American Lobster
• Ammonite
• Andaman Lobster
• Andean Hairy Armadillo
• Angel Wing
• Angulate Tortoise
• Annual Cicada
• Antarctic Krill
• Antarctic Limpet
• Antarctic Scallop
• Antarctic Sea Urchin
• Antarctic Stone Crab
• Apple Murex
• Apple snail
• Arakan Forest Turtle
• Archelon
• Arctic Ground Beetle
• Arctic Krill
• Argentine Snake-Necked Turtle
• Argentine Tortoise
• Arizona Mud Turtle
• Ark Clam
• Arnold's Giant Tortoise
• Arrau Turtle
• Asian Box Turtle
• Asian Giant Softshell Turtle
• Asian Giant Tortoise
• Asian Lady Beetle
• Asian Leaf Turtle
• Asian Longhorn Beetle
• Asian Narrow-Headed Softshell Turtle
• Asian Shore Crab
• Asiatic Softshell Turtle
• Asparagus Beetle
• Assam Leaf Turtle
• Assam Roofed Turtle
• Assassin Snail
• Atlantic Bay Scallop
• Atlantic Jackknife Clam
• Atlantic Surf Clam
• Atlas Beetle
• Atlas Tortoise
• Atrato Slider
• Aturia
• Aubry's Flapshell Turtle
• Auger Shell
• Australian Saw-Shelled Turtle
• Australian Scampi
• Australian Short-Necked Turtle
• Australian Snake-Necked Turtle
• Australian Snapping Turtle
• Baculites
• Bai Top Shell
• Bailer Shell
• Baja California Slider
• Bald Sea Urchin
• Balkan Pond Turtle
• Balmain Bug
• Bamboo Shrimp
• Banana Prawn
• Banded Coral Shrimp
• Banded Dye-Murex
• Banded Snail
• Banded Tulip
• Barbour's Map Turtle
• Bark Beetle
• Basket Clam
• Beaked Cape Tortoise
• Beale's Eyed Turtle
• Beautiful Armadillo
• Belemnite
• Bell's Hinge-Back Tortoise
• Bellinger River Snapping Turtle
• Berger's Cape Tortoise
• Berlandier's Tortoise
• Bess Beetle
• Big Bend Slider
• Big Hairy Armadillo
• Big-Headed Amazon River Turtle
• Big-Headed Pantanal Swamp Turtle
• Big-Headed Turtle
• Bigclaw River Shrimp
• Black Abalone
• Black Crab
• Black Marsh Turtle
• Black Nerite
• Black Pond Turtle
• Black Sea Urchin
• Black Softshell Turtle
• Black Spine-Neck Swamp Turtle
• Black Wood Turtle
• Black-Breasted Leaf Turtle
• Black-Knobbed Map Turtle
• Blacklip Abalone
• Bladder Snail
• Blanding's Turtle
• Blister Beetle
• Blood Clam
• Blue Death Feigning Beetle
• Blue King Crab
• Blue Land Crab
• Blue Lobster
• Blue Swimmer Crab
• Bluff Oyster
• Bog Turtle
• Boll Weevil
• Bolson Tortoise
• Bombardier Beetle
• Bonnet Shell
• Bourret's Box Turtle
• Box Crab
• Boxer Crab
• Brachiopod
• Brahminy River Turtle
• Brazilian Radiolated Swamp Turtle
• Brazilian Snake-Necked Turtle
• Brazilian Three-Banded Armadillo
• Brine shrimp
• Brown Banded Cockroach
• Brown Roofed Turtle
• Brown Wood Turtle
• Bubble Shell
• Bumastus
• Burmese Eyed Turtle
• Burmese Flapshell Turtle
• Burmese Narrow-Headed Softshell Turtle
• Burmese Peacock Softshell
• Burmese Roofed Turtle
• Burmese Star Tortoise
• Burying Beetle
• Button Snail
• Cagle's Map Turtle
• Calico Scallop
• California Mussel
• Calymene
• Cameroceras
• Cane Turtle
• Cape Lobster
• Carbonemys
• Cardinal Beetle
• Caribbean Hermit Crab
• Caribbean Spiny Lobster
• Carpet Beetle
• Carpet Shell
• Carrion Beetle
• Caspian Pond Turtle
• Cat's Paw
• Cat's-Eye Snail
• Central African Mud Turtle
• Central American Mud Turtle
• Central American River Turtle
• Central American Snapping Turtle
• Central Antillean Slider
• Ceratarges
• Cerith
• Chaco Side-Necked Turtle
• Chacoan Naked-Tailed Armadillo
• Chameleon Prawn
• Champagne Crab
• Channeled Whelk
• Checkered Beetle
• Cheirurus
• Cherry Shrimp
• Chestnut Turban
• Chicken Turtle
• Chilean Giant Barnacle
• Chinese Box Turtle
• Chinese Horseshoe Crab
• Chinese Mitten Crab
• Chinese Pangolin
• Chinese Pond Turtle
• Chinese Softshell Turtle
• Chinese Stripe-Necked Turtle
• Chiton— Eight overlapping shell plates let it curl up like an armadillo.
• Christmas Beetle
• Christmas Island Red Crab
• Clam Shrimp
• Click Beetle
• Cloudy Periwinkle
• Clown Beetle
• Coahuilan Box Turtle
• Coastal Plain Cooter
• Coat-of-Mail Chiton
• Cockchafer
• Cockroach— Counted here for the hard shell a squashed one proves.
• Coconut crab
• Coconut Hispine Beetle
• Coconut Rhinoceros Beetle
• Collector Urchin
• Colombian Slider
• Colombian Wood Turtle
• Colorado Potato Beetle
• Common Box Turtle
• Common Cockle
• Common Cuttlefish
• Common Limpet
• Common Periwinkle
• Common Prawn
• Common Sand Dollar
• Common Shrimp
• Common Whelk
• Cone snail
• Convergent Lady Beetle
• Cooperoceras
• Cooter
• Cowrie
• Creaser's Mud Turtle
• Crown Conch
• Cuatro Cienegas Slider
• Cuban Giant Tortoise
• Cuban Painted Snail
• Cuban Slider
• Cucumber Beetle
• Cumberland Slider
• Cut-Ribbed Ark
• Cuttlefish— Its internal cuttlebone is the chalk you clip into birdcages.
• Cyclopyge
• Cyrtoceras
• D'orbigny's Slider
• Dactylioceras
• Dahl's Toad-Headed Turtle
• Dalmanites
• Dark Cerith
• Darkling Beetle
• Daudin's Giant Tortoise
• Death Watch Beetle
• Decollate Snail
• Decorator Crab
• Delphinula
• Dermestid Beetle
• Desert Box Turtle
• Desert Mud Turtle
• Desert tortoise
• Devil's Coach Horse
• Diamondback terrapin
• Diving Beetle
• Doedicurus
• Dog Cockle
• Dog Whelk
• Domed Mauritius Giant Tortoise
• Domed Rodrigues Giant Tortoise
• Domed Seychelles Giant Tortoise
• Dominican Giant Tortoise
• Donax Clam
• Dove Shell
• Drugstore Beetle
• Dubia Cockroach
• Dung beetle
• Dungeness crab
• Dunn's Mud Turtle
• Durango Mud Turtle
• Dwarf Armadillo
• East African Black Mud Turtle
• Eastern Auger
• Eastern Black-Bridged Leaf Turtle
• Eastern Long-Necked Turtle
• Eastern Mud Turtle
• Eastern Oyster
• Eastern Painted Turtle
• Eastern River Cooter
• Eccentric Sand Dollar
• Edible Crab
• Egyptian Tortoise
• Eldredgeops
• Electric Blue Crayfish
• Elephant Beetle
• Elephant Snail
• Elephant Tusk Shell
• Elm Bark Beetle
• Elongated Tortoise
• Elrathia
• Emerald Ash Borer
• Emperor Shrimp
• Encrinurus
• Endoceras
• Enigmatic Leaf Turtle
• Escambia Map Turtle
• Euphrates Softshell Turtle
• European Lobster
• European Pond Turtle
• European Spider Crab
• Eutrephoceras
• Exogyra
• Fairy Shrimp
• False Map Turtle
• Featherwing Beetle
• Fiddler crab
• Fig Beetle
• Fig Shell
• Fighting Conch
• File Shell
• Fine-Ribbed Auger
• Fire Shrimp
• Fire Urchin
• Firefly
• Fish Louse
• Fitzroy River Turtle
• Flat Periwinkle
• Flat-Backed Spider Tortoise
• Flatback Sea Turtle
• Flattened Musk Turtle
• Flea Beetle
• Fleshy Prawn
• Florida Cone
• Florida Lobsterette
• Florida Red-Bellied Cooter
• Florida Softshell Turtle
• Flour Beetle
• Flower Urchin
• Fly River Turtle
• Fly-Speck Cerith
• Forest Hinge-Back Tortoise
• Forsten's Tortoise
• Four-Eyed Turtle
• Frog Shell
• Furniture Beetle
• Furrowed Wood Turtle
• Furry Lobster
• Garden snail
• Geoduck
• Geography Cone
• Geometric Tortoise
• German Cockroach
• Ghana Tiger Snail
• Ghost crab
• Ghost Shrimp
• Giant Acorn Barnacle
• Giant African snail
• Giant Antarctic Isopod
• Giant armadillo
• Giant Asian Pond Turtle
• Giant clam
• Giant Cockle
• Giant isopod
• Giant Pangolin
• Giant Snakeneck Turtle
• Giant South American River Turtle
• Giant Tiger Prawn
• Gibba Turtle
• Gigantoproductus
• Giraffe Weevil
• Glassy Bubble
• Glyptodon
• Glyptotherium
• Golden Buprestid
• Golden Coin Turtle
• Golden Ground Beetle
• Golden King Crab
• Golden Tortoise Beetle
• Goliath Beetle
• Goniatite
• Goode's Thornscrub Tortoise
• Gooseneck barnacle
• Gopher tortoise
• Grain Weevil
• Grass Shrimp
• Great Diving Beetle
• Great Scallop
• Greater Dwarf Tortoise
• Greater Fairy Armadillo
• Greater Long-Nosed Armadillo
• Greater Naked-Tailed Armadillo
• Greek Tortoise
• Green Abalone
• Green June Beetle
• Green Ormer
• Green sea turtle
• Green Sea Urchin
• Green Tiger Beetle
• Green-Lipped Mussel
• Greenland Cockle
• Ground Beetle
• Ground Pangolin
• Grove Snail
• Gryphaea
• Gulf Oyster Drill
• Gulf Snapping Turtle
• Gumboot Chiton
• Gwynia
• Hairy Long-Nosed Armadillo
• Halkieria
• Halloween Crab
• Hamaguri
• Harlequin Shrimp
• Harp Shell
• Hawksbill
• Heart Urchin
• Helmet Shell
• Henodus
• Hercules Beetle
• Hermann's tortoise
• Herrera's Mud Turtle
• Hide Beetle
• Hispaniolan Slider
• Hoge's Side-Necked Turtle
• Hoi Lai
• Holmesina
• Home's Hinge-Back Tortoise
• Hoplophorus
• Hoploscaphites
• Horn Snail
• Horned Armadillo
• Horse Conch
• Hunan Softshell Turtle
• Hyolith
• Iberian Pond Turtle
• Ice Amphipod
• Ice Krill
• Iceland Scallop
• Impressed Tortoise
• Indian Black Turtle
• Indian Eyed Turtle
• Indian Flapshell Turtle
• Indian Narrow-Headed Softshell Turtle
• Indian Pangolin
• Indian Peacock Softshell Turtle
• Indian Prawn
• Indian Roofed Turtle
• Indian Softshell Turtle
• Indian star tortoise
• Indian Tent Turtle
• Indo-Pacific Horseshoe Crab
• Indochinese Box Turtle
• Inoceramus
• Intermediate Musk Turtle
• Irwin's Turtle
• Isotelus
• Ivory Coast Mud Turtle
• Jalisco Mud Turtle
• Jamaican Slider
• Japanese Beetle
• Japanese Crab
• Japanese Goose Barnacle
• Japanese Lobster
• Japanese Pond Turtle
• Japanese Spider Crab
• Jewel Beetle
• Jewel Box
• Jingle Shell
• Jonah Crab
• June bug
• Junonia
• Kalahari Tent Tortoise
• Karoo Dwarf Tortoise
• Kauri Snail
• Keeled Box Turtle
• Kelp Crab
• Kemp's ridley
• Keyhole Limpet
• Keyhole Sand Dollar
• Khapra Beetle
• Khorat Snail-Eating Turtle
• Kitten's Paw
• Knobbed Whelk
• Kumamoto Oyster
• Ladder Horn Snail
• Langoustine
• Larder Beetle
• Large-Nosed Wood Turtle
• Leaf Beetle
• Leather Chiton
• Leatherback
• Leith's Softshell Turtle
• Leith's Tortoise
• Leopard tortoise
• Lesser Chinese Softshell Turtle
• Lettered Olive
• Libyan Tortoise
• Lightning Whelk
• Limpet
• Lined Chiton
• Lined Shore Crab
• Lingula
• Llanos Long-Nosed Armadillo
• Lobatse Hinge-Back Tortoise
• Loggerhead
• Loggerhead Musk Turtle
• Long-Spined Sea Urchin
• Long-Tailed Pangolin
• Longhorn Beetle
• Lutz's Giant Tortoise
• Lynx Cowrie
• Macleay River Turtle
• Madagascan Big-Headed Turtle
• Madagascar Hissing Cockroach
• Magdalena River Turtle
• Magellania
• Maize Weevil
• Malayan Flat-Shelled Turtle
• Malayan Snail-Eating Turtle
• Malayan Softshell Turtle
• Malaysian Giant Turtle
• Mangrove Horseshoe Crab
• Mangrove Oyster
• Mangrove Periwinkle
• Manila Clam
• Manning River Snapping Turtle
• Mantis shrimp
• Map turtle
• Maracaibo Wood Turtle
• Maranhao Slider
• Marginated Tortoise
• Marginella
• Marron
• Marsh Beetle
• Marsh Snail
• Mary River Turtle
• Matamata
• Mauritius Giant Flat-Shelled Tortoise
• Mauve-Mouth Drill
• Maximilian's Snake-Necked Turtle
• Mccord's Box Turtle
• Mealworm Beetle
• Mediterranean Mussel
• Meiolania
• Mekong Snail-Eating Turtle
• Melo Melo
• Merauke Snapping Turtle
• Merchant Grain Beetle
• Meso-American Slider
• Mexican Dwarf Crayfish
• Mexican Giant Musk Turtle
• Mexican Long-Nosed Armadillo
• Mexican Mud Turtle
• Mexican Musk Turtle
• Mexican Spotted Wood Turtle
• Micraster
• Minute Scavenger Beetle
• Mississippi Map Turtle
• Miter Shell
• Mole crab
• Mona Tortoise
• Money Cowrie
• Moon snail
• Moreton Bay Bug
• Mossy Chiton
• Mountain Pine Beetle
• Mountain Tortoise
• Mud crab
• Mud Snail
• Mud turtle
• Murex
• Murray Crayfish
• Musk turtle
• Myanmar Brown Leaf Turtle
• Mysid Shrimp
• Mystery snail
• Nabire Snapping Turtle
• Namoi River Snapping Turtle
• Narrow-Bridged Musk Turtle
• Nassa Snail
• Natal Hinge-Back Tortoise
• Native Oyster
• Necklace Shell
• Negev Tortoise
• Neosclerocalyptus
• Neothyris
• Nerite
• Net-Winged Beetle
• New Guinea Giant Softshell Turtle
• New Guinea Snake-Necked Turtle
• New Guinea Snapping Turtle
• New Mexico Box Turtle
• New Zealand Scampi
• Nicaraguan Slider
• Nile Softshell Turtle
• Nine-banded armadillo
• Ninjemys
• Nipponites
• Northern Chinese Softshell Turtle
• Northern Krill
• Northern Map Turtle
• Northern Naked-Tailed Armadillo
• Northern New Guinea Giant Softshell Turtle
• Northern Red-Bellied Cooter
• Northern River Terrapin
• Northern Shrimp
• Northern Snake-Necked Turtle
• Nubian Flapshell Turtle
• Nut Clam
• Nutmeg Shell
• Nuttall's Cockle
• Oaxaca Mud Turtle
• Ocean Quahog
• Odontochelys
• Ogygopsis
• Okavango Mud Turtle
• Oldham's Leaf Turtle
• Olenellus
• Olenoides
• Olive ridley
• Olive Shell
• Olympia Oyster
• Onyx Cowrie
• Oriental Cockroach
• Ornate Box Turtle
• Ornate Slider
• Ornate Wood Turtle
• Orthoceras
• Ostracod
• Ouachita Map Turtle
• Owl Limpet
• Ox Beetle
• Ox-Heart Clam
• Oyster Drill
• Pacific Oyster
• Pacific Razor Clam
• Painted Terrapin
• Painted turtle
• Painted Wood Turtle
• Palm Weevil
• Pampatherium
• Pan's Box Turtle
• Panochthus
• Paradoxides
• Parapuzosia
• Parker's Snake-Necked Turtle
• Pascagoula Map Turtle
• Patagonian Tortoise
• Pea Crab
• Peacock Mantis Shrimp
• Pear Whelk
• Pearl Oyster
• Pearl River Map Turtle
• Pederson's Shrimp
• Pelagodiscus
• Pen Shell
• Pencil Urchin
• Peninsula Cooter
• Periodical Cicada
• Periwinkle
• Peronopsis
• Phacops
• Pharaoh Cuttlefish
• Philippine Forest Turtle
• Philippine Pangolin
• Pig Nosed Turtle
• Pill Beetle
• Pincushion Urchin
• Pink fairy armadillo
• Pink Hairy Squat Lobster
• Pink Shrimp
• Pinta Island Tortoise
• Pipi
• Pismo Clam
• Placochelys
• Placostylus
• Pleasing Fungus Beetle
• Plectronoceras
• Ploughshare Tortoise
• Pod Razor
• Pollen Beetle
• Pond Snail
• Porcelain Crab
• Portuguese Oyster
• Powderpost Beetle
• Powelliphanta
• Praire
• Prickly Cockle
• Pritchard's Snake-Necked Turtle
• Proganochelys
• Propalaehoplophorus
• Protostega
• Psephoderma
• Puentemys
• Purple Dye Murex
• Purple Sea Urchin
• Purple Shore Crab
• Purple Topshell
• Quagga Mussel
• Quahog
• Queen Conch
• Queen Scallop
• Radiated Tortoise
• Ramshorn Snail
• Rayonnoceras
• Razor clam
• Razor-Backed Musk Turtle
• Red Abalone
• Red Crab
• Red Palm Weevil
• Red Rock Crab
• Red Sea Urchin
• Red Swamp Crayfish
• Red-Bellied Short-Necked Turtle
• Red-Crowned Roofed Turtle
• Red-eared slider
• Red-Footed Tortoise
• Red-Headed Amazon River Turtle
• Red-Headed Side-Necked Turtle
• Red-Necked Pond Turtle
• Redclaw Crayfish
• Redlichia
• Reef Lobster
• Reef Urchin
• Reeves Turtle
• Reimann's Snake-Necked Turtle
• Reticulated Beetle
• Reunion Giant Tortoise
• Rhinoceros beetle
• Rice Water Weevil
• Rice Weevil
• Riffle Beetle
• Ringed Map Turtle
• Rio Grande Cooter
• Rock Barnacle
• Rock crab
• Rock Oyster
• Rock Pool Shrimp
• Rock Scallop
• Roman Snail
• Rose Chafer
• Rosy Wolf Snail
• Roti Island Snake-Necked Turtle
• Rough Periwinkle
• Rough-Footed Mud Turtle
• Rove Beetle
• Russian tortoise
• Ryukyu Black-Breasted Leaf Turtle
• Saddle-Backed Mauritius Giant Tortoise
• Saddle-Backed Rodrigues Giant Tortoise
• Sahel Tortoise
• Sally Lightfoot Crab
• Sand Hopper
• Sap Beetle
• Savanna Side-Necked Turtle
• Saw-Shelled Turtle
• Sawtoothed Grain Beetle
• Scaphites
• Scarab
• Scarlet Lily Beetle
• Scorpion Conch
• Scorpion Mud Turtle
• Screaming Hairy Armadillo
• Sea Biscuit
• Sea Louse
• Sea slater
• Selenopeltis
• Senegal Flapshell Turtle
• Serrated Hinged Terrapin
• Seven Spot Ladybird
• Seven-Banded Armadillo
• Sexy Shrimp
• Shark's Eye
• Shingle Urchin
• Shipworm
• Shore crab
• Sicilian Pond Turtle
• Signal Crayfish
• Six-Banded Armadillo
• Six-Holed Keyhole Urchin
• Six-Spotted Tiger Beetle
• Six-Tubercled Amazon River Turtle
• Slate Pencil Urchin
• Slipper Limpet
• Slipper lobster
• Smooth Clam
• Smooth Softshell Turtle
• Snow crab
• Snuffbox Mussel
• Soft-Shell Clam
• Softshell turtle
• Soldier Beetle
• Soldier Crab
• Sonora Mud Turtle
• Sonoran Desert Tortoise
• South American Side-Necked Swamp Turtle
• South American Snake-Necked Turtle
• South American Snapping Turtle
• Southern Long-Nosed Armadillo
• Southern Naked-Tailed Armadillo
• Southern Pine Beetle
• Southern River Terrapin
• Southern Rock Lobster
• Southern Rough Shrimp
• Southern Three-Banded Armadillo
• Southern Vietnamese Box Turtle
• Southern Wood Tortoise
• Southwestern Pond Turtle
• Southwestern Snake-Necked Turtle
• Spanish Fly
• Spanner Crab
• Speckled Tortoise
• Speke's Hinge-Back Tortoise
• Spider Beetle
• Spider Conch
• Spider crab
• Spider Tortoise
• Spindle Shell
• Spiny Crab
• Spiny King Crab
• Spiny lobster
• Spiny Murex
• Spiny Oyster
• Spiny Softshell Turtle
• Spiny Turtle
• Spirifer
• Spirula— A tiny deep-sea squid with a true coiled shell inside.
• Sponge Crab
• Spot-Legged Wood Turtle
• Spotted Box Turtle
• Spotted Cucumber Beetle
• Spotted Softshell Turtle
• Spotted Turtle
• Squat lobster
• Sri Lankan Flapshell Turtle
• Stag beetle
• Stalked Barnacle
• Star Shell
• Stone crab
• Striate Bubble
• Striped Mud Turtle
• Stripeneck Musk Turtle
• Stupendemys
• Sulawesi Forest Turtle
• Sulcata tortoise
• Sunda Pangolin
• Sundial Shell
• Sunray Venus
• Surf Clam
• Suwannee Cooter
• Suwannee Snapping Turtle
• Sword Razor
• Sydney Rock Oyster
• Tabasco Mud Turtle
• Tadpole Shrimp
• Tampa Drill
• Tansy Beetle
• Tasmanian Giant Freshwater Crayfish
• Telephone-Pole Beetle
• Tellin
• Tent Tortoise
• Terebratulina
• Texas Cooter
• Texas Map Turtle
• Texas Spiny Softshell Turtle
• Texas Tortoise
• Textile Cone Snail
• Thistle Tortoise Beetle
• Thorny Crab
• Three-banded armadillo
• Three-Striped Roofed Turtle
• Three-Toed Box Turtle
• Tiger Beetle
• Tiger Cowrie
• Tiger Pistol Shrimp
• Titan Beetle
• Titanites
• Toheroa
• Tongue Auger
• Tongue-Eating Louse
• Top Shell
• Tortoise beetle
• Tortoiseshell Limpet
• Tower Snail
• Toxochelys
• Transverse Ark
• Travancore Tortoise
• Tree Crab
• Tree Pangolin
• Triarthrus
• Tricarinate Hill Turtle
• Trigonia
• Trilobite— Its fossil shell ruled the seas for 270 million years.
• Trinucleus
• Triton's Trumpet
• Trocholites
• True Tulip
• Trumpet Snail
• Trumpet Snail (malaysian)
• Tuatua
• Tulip Shell
• Tun Shell
• Turban Shell
• Turkana Mud Turtle
• Turkey Wing
• Turrilites
• Turtle Barnacle
• Tusk shell
• Tuxedo Urchin
• Twist-Necked Turtle
• Two Spot Ladybird
• Upemba Mud Turtle
• Vampire Crab
• Variable Mud Turtle
• Varied Carpet Beetle
• Vase Shell
• Velvet Crab
• Venus Clam
• Venus Comb Murex
• Vietnamese Pond Turtle
• Vietnamese Three-Striped Box Turtle
• Vine Weevil
• Violin Beetle
• Volcano Barnacle
• Volcano Keyhole Limpet
• Volute
• Walliserops
• Water Beetle
• Water Scavenger Beetle
• Wattle-Necked Softshell Turtle
• Weevil
• Wentletrap
• West African Black Turtle
• West African Mud Turtle
• West Indian Sea Egg
• Western Black-Bridged Leaf Turtle
• Western Box Turtle
• Western Pond Turtle
• Western Swamp Tortoise
• Western Yabby
• Whale Barnacle
• Wharf Borer
• Whirligig Beetle
• White Abalone
• White River Crayfish
• White Shrimp
• White-Clawed Crayfish
• White-Lipped Mud Turtle
• White-Lipped Snail
• Whiteleg Shrimp
• Williams' Mud Turtle
• Windowpane Oyster
• Wood Turtle
• Worm Snail
• Xantus Swimming Crab
• Yabby
• Yangtze Giant Softshell Turtle
• Yaqui Slider
• Yellow Moon Crab
• Yellow Mud Turtle
• Yellow Pond Turtle
• Yellow-Bellied Mud Turtle
• Yellow-Bellied Slider
• Yellow-Blotched Map Turtle
• Yellow-Footed Tortoise
• Yellow-Headed Box Turtle
• Yellow-Headed Temple Turtle
• Yellow-Spotted River Turtle
• Yepes's Mulita
• Yeti Crab
• Yunnan Box Turtle
• Zambezi Flapshell Turtle
• Zebra Mussel
• Zebra Snail
• Zhou's Box Turtle

Uncommon — only a minority of players land here.

• Abalone
• Barnacle
• Beetle— Those hard wing cases are what people call its shell.
• Blue crab
• Box turtle
• Cicada— Leaves its empty brown shell clinging to tree bark each summer.
• Cockle
• Crayfish
• Galapagos tortoise
• Horseshoe crab
• King crab
• Krill
• Ladybug— Its spotted shell is a pair of hardened wing cases.
• Nautilus
• Pancake tortoise
• Pangolin— Scales, not a shell, but it counts here.
• Pill bug
• Pistol shrimp
• Prawn
• Sand dollar
• Sea snail
• Sea urchin
• Snapping turtle
• Terrapin
• Whelk

A solid, middling pick shared with plenty of other players.

• Armadillo
• Clam
• Conch
• Hermit crab
• Lobster
• Mussel
• Oyster
• Scallop
• Sea turtle
• Shrimp

The most common answer on the board.

• Crab
• Snail
• Tortoise
• Turtle