Animal Care/Snail shells with round or oval openings

Hermit crabs that usually prefer shells with circular or oval openings are: Indonesian hermit crabs or "Indos" (Coenobita brevimanus) Caribbean hermit crab or "Purple Pinchers" (Coenobita clypeatus) Strawberry hermit crabs "Strawberries" (Coenobita perlatus) Rugosus hermit crabs or "Rugs" (Coenobita rugosus) As pets they tend to give preference to particular snail (class Gastropoda, phylum Mollusca) shells (bold if known to be within the Purple Pincher's normal range; Picture2  links may contain pictures of shells that have been misidentified; not all shells at the "common names" links may be appropriate for hermit crabs): Superorder Vetigastropoda - Order under revision turban shells (common names ; family Turbinidae - Family pictures ) - Examples: Silvermouth Turban (Turbo argyrostomus ) - Region: Indo-W.Pacific - ZipCodeZoo entry - Picture - Picture2 Filose Turban (Turbo cailletii ) - Region: Western Atlantic Ocean - ZipCodeZoo entry - Picture - Picture2 Channeled Turban (Turbo canaliculatus ) - Region: Western Atlantic Ocean - ZipCodeZoo entry - Picture - Picture2 Chestnut or Knobby Turban (Turbo castanea ) - Region: Western Atlantic Ocean - ZipCodeZoo entry - Picture - Picture2 Goldmouth Turban (Turbo chrysostomus ) - Region: SE Africa-W.Pacific - ZipCodeZoo entry - Picture - Picture2 Smooth Moon Turban (Turbo cinereus ) - Regions: Indo-Australia area, China - ZipCodeZoo entry - Picture - Picture2 Fluctuating Turban, Pacific Turban or Mexican Turbo (Turbo fluctuosus ) - Region: Baja California,Mexico-Peru; Galápagos - ZipCodeZoo entry - Picture - Picture2 Green Turban (Turbo marmoratus ) - Regions: Indo-Australia area, Japan, Africa - ZipCodeZoo entry - Picture - Picture2 Tapestry Turban (Turbo petholatus ) - Regions: India, Philippines, South Africa - ZipCodeZoo entry - Picture - Picture2 South African Turban (Turbo sarmaticus ) - Region: South Africa - ZipCodeZoo entry - Picture - Picture2 Stenogyrus Turban (Turbo stenogyrum ) - Region: SW Pacific, Japan-Indonesia - ZipCodeZoo entry - Picture - Picture2 Wavy Turban or Common Warrener (Turbo undulata ) - Region: New Zealand - ZipCodeZoo entry - Picture - Picture2 West Indian Topshell shells (Cittarium pica - was Turbo pica ; family Trochidae - - Family Pictures ) - also called the Magpie, the West Indian Topsnail, or erroneously the West Indian Whelk. Over fishing of this snail (Bermuda) has been known to negatively effect the Purple Pincher population. - Region: C.Americas-Bahamas - ZipCodeZoo entry - Picture - Picture2 Superorder Caenogastropoda - Order Sorbeoconcha murex shells (common names; family Muricidae - Family pictures ) - Examples: Ramose Murex (Chicoreus ramosus ) - Region: Indo-W.Pacific; Red Sea - ZipCodeZoo entry - Picture - Picture2 Virgin Murex (Chicoreus virgineus ) - Region: Red Sea-Bay of Bengal - Picture - Picture2 Endive Murex (Hexaplex endivia ) - ZipCodeZoo entry - Picture - Picture2 Pink Mouthed Murex (Hexaplex/Phyllonotus erythrostomus ) - Region: Sea of Cortèz, Mexico-Peru - ZipCodeZoo entry - Picture - Picture2 Black Murex (Hexaplex nigritus ) - Region: Sea of Cortèz, Mexico - ZipCodeZoo entry - Picture - Picture2 Apple Murex (Phyllonotus pomum ) - ZipCodeZoo entry - - Picture - Picture2 "rock shell" shells (common names ; family Muricidae - Family pictures ) - Examples: Belligerent Rock Shell (Thais armigera ) - Region: SW Pacific-Japan; Réunion - ZipcodeZoo entry - Picture - Picture2 Chestnut Rock Shell (Thais bitubercularis ) - Region: E.Africa-Philippines & Australia - ZipcodeZoo entry - Picture - Picture2 Blanford's Rock Shell (Thais blanfordi ) - Region: Durban,RSA-Arabian Gulf - Picture - Picture2 Coronate Rock Shell (Thais coronata ) - Region: Mauritania-Angola; Colombia-NE Brazil - ZipcodeZoo entry - Picture - Picture2 Deltoid Rock Shell (Thais deltoidea ) - Region: Bermuda; Florida, USA; W.Indies; Brazil - ZipcodeZoo entry - Picture - Picture2 Kiosque Rock Shell (Thais kiosquiformis ) - Region: Baja California, Mexico-Peru - ZipcodeZoo entry - Picture - Picture2 Carinate Rock Shell (Thais lacera/mutabilis ) - Region: Durban Bay, RSA-Red Sea-SE Asia; E.Mediterranean - ZipcodeZoo entry - Picture - Picture2 Gourd Rock Shell (Thais melones ) - Region: Pacific Mexico- Peru; Galápagos - ZipcodeZoo entry - Picture - Picture2 White Rock Shell (Thais orbita ) - Region: N.New Zealand; S.-E.Australia - ZipcodeZoo entry - Picture - Picture2 Orb Rock Shell (Thais orbita aegrota ) - Region: W.Australia - Picture - Picture2 Orb Rock Shell (Thais orbita textilosa ) - Region: Victoria; S.Australia - Picture - Picture2 Rugose Rock Shell (Thais sacellum ) - Region: Bermuda; Florida, USA; W.Indies; Brazil - Picture - Picture2 Tissot's Rock Shell (Thais tissoti ) - Region: KwaZuluNatal,RSA-Red Sea & E.Africa-Sri Lanka - Picture - Picture2 "tulip shell" shells (common names ; family Fasciolariidae - Family pictures ) - Examples: Yellow Tulip Shell (Fasciolaria bullisi ) - Region: Western Atlantic Ocean - ZipCodeZoo entry - Picture Mediterranean Tulip Shell (Fasciolaria lignaria ) - ZipCodeZoo entry - Picture - Picture2 Hunter's Tulip Shell (Fasciolaria lilium hunteria ) - Region: Western Atlantic Ocean - ZipCodeZoo entry - Picture - Picture2 Banded Tulip Shell (Fasciolaria lilium tortugana ) - Region: the Americas - ZipCodeZoo entry - Picture - Picture2 True Tulip Shell (Fasciolaria tulipa ) - Regions: Americas, India, etc. - ZipCodeZoo entry - Picture - Picture2 Atlantic Striped Fox shells (Fasciolaria trapezium audouini ; family Fasciolariidae) - Regions: E Africa, Indo-W.Pacific - ZipCodeZoo entry - Picture - Picture2 periwinkle shells (common names ; family Littorinidae - Family Pictures ) - Examples: Slender Periwinkle (Echinolittorina/Nodilittorina angustior ) - Regions: N.America, Western Atlantic Ocean - ZipCodeZoo entry - Picture - Picture2 Lineolate Periwinkle (Echinolittorina/Nodilittorina lineolata ) - Region: Florida,USA-Mexico-Uruguay - ZipCodeZoo entry - Picture - Picture2 White-Spotted Periwinkle (Echinolittorina/Nodilittorina meleagris ) - Regions: N.America, Western Atlantic Ocean - ZipCodeZoo entry - Picture - Picture2 Dwarf Brown Periwinkle (Echinolittorina/Nodilittorina mespillum ) - Regions: N.America, Western Atlantic Ocean - ZipCodeZoo entry - Picture - Picture2 Zebra Periwinkle (Echinolittorina/Nodilittorina ziczac ) - Regions: E.Pacific, N.America, Western Atlantic Ocean - ZipCodeZoo entry - Picture - Picture2 Mangrove Periwinkle (Littoraria angulifera ) - Regions: North America, Western Atlantic Ocean - ZipCodeZoo entry - Picture - Picture2 Marsh Periwinkle (Littoraria irrorata ) - Regions: North America, Western Atlantic Ocean - ZipCodeZoo entry - Picture - Picture2 Cloudy Periwinkle (Littoraria nebulosa ) - Regions: North America, Western Atlantic Ocean - ZipCodeZoo entry - Picture - Picture2 Common Periwinkle (Littorina littorea ) - Regions: North America, Caribbean, Europe, India, etc. - ZipCodeZoo entry - Picture - Picture2 Checkered Periwinkle (Littorina scutulata ) - Regions: the Americas, Australia - ZipCodeZoo entry - Picture - Picture2 frog shells (common names ; family Bursidae - Family pictures ) - Examples: Spiny Frogsnail (Bufonaria echinata/Bursa Spinosa ) - Regions: Philippines; Indian Ocean; China - Picture - Picture2 Common Frogsnail (Bufonaria/Bursa rana ) - Regions: Japan-E. & W. Australia - Picture - Picture2 Granular Frogsnail (Bursa granularis cubaniana ) - Regions: SE Florida,USA-Colombia; Jamaica-NE.Brazil - ZipCodeZoo entry - Picture - Picture2 Elegant/Pacamon Frogsnail (Bursa grayana ) - Regions: Florida Keys; Cuba; Curaçao-NE.Brazil - ZipCodeZoo entry - Picture - Picture2 California Frogsnail (Crossata californica ) - Regions: C.California,USA-Sea of Cortèz, Mexico - ZipCodeZoo entry - Picture - Picture2 Red-ringed/Red-mouth Frogsnail (Tutufa bufo ) - Region: Indo-W.Pacific - ZipCodeZoo entry - Picture - Picture2 Ruddy/Red-mouthed Frogsnail (Tutufa rubeta ) - Region: Indo-W.Pacific - ZipCodeZoo entry - Picture - Picture2 nutmeg shells (common names ; family Cancellariidae - - Family pictures ) - Examples: Basket Nutmeg (Gerdiella crobicula ) - Region: E.Pacific - ZipCodeZoo Rugosa Nutmeg (Trigonostoma rugosum ) - Regions: Florida, E.Pacific, Western Atlantic - ZipCodeZoo entry - Picture - Picture2 King's Crown Conch shells (Melongena corona ; family Melongenidae - Family pictures ) - Region: Western Atlantic Ocean - ZipCodeZoo entry - Picture - Picture2 order Pulmonata - have lungs rather than gills Haitian Tree Snail shells [also called "Candy Striped" or "Rainbow" shells] (Liguus virgineus|Liguus virgineus ; family Orthalicidae) - Region: Cuba - ZipCodeZoo entry - Picture - Picture2 Japanese Land Snail shells [also called "Land Fairy" shells] (Euhadra peliomphala hickonis , family Bradybaenidae) - Region: Japan - ZipCodeZoo entry - Picture - Picture2 Giant African Snail or Ghana Tiger Snail shells (Achatina achatina ; family Achatinidae) - Regions: Asia, Pacific and Indian Oceans islands, West Indies - Picture - Picture2