Molluscs of Tamil Nadu
1,138 molluscs on the India list have an open record placed in Tamil Nadu, 8 of them threatened (1 Critically Endangered, 2 Endangered and 5 Vulnerable).
A species is in a state when it has an open record placed there: a record anyone can check online (a GBIF record, or a research-grade iNaturalist observation). Threatened: IUCN Red List Critically Endangered, Endangered or Vulnerable. List of the week of 2026-11-09.
Threatened molluscs of Tamil Nadu (8)
- Conus tuticorinensis CR
- Conus madagascariensis EN
- Laevicaulis haroldi Harold Dundee's Leatherback Slug EN
- Alviniconcha hessleri VU
- Conus anabathrum Florida Cone VU
- Cremnoconchus conicus VU
- Hippopus hippopus Bear Paw Clam VU
- Nautilus pompilius Emperor Nautilus VU
All molluscs of Tamil Nadu on the list (1,138)
- Acanthochitona mahensis
- Acanthosepion aculeatum DD
- Acanthosepion pharaonis DD
- Acanthosepion ramani DD
- Acrosterigma attenuatum
- Acrosterigma biradiatum
- Acrosterigma impolitum
- Acrosterigma maculosum
- Acrosterigma magnum Magnum cockle
- Acrosterigma oxygonum
- Agaronia gibbosa gibbous olive
- Agaronia hiatula
- Agaronia ispidula
- Agathistoma melaleucos
- Alaba hungerfordi
- Aliculastrum cylindricum
- Allopeas clavulinum Spiked Awlsnail
- Allopeas gracile Graceful Awlsnail
- Alviniconcha hessleri VU
- Amphioctopus aegina Marbled Octopus
- Amphioctopus fangsiao Gold-spot Octopus
- Ampullaceana balthica Wandering Snail
- Amusium pleuronectes Asian Moon Scallop
- Anachis fauroti
- Anachis miser
- Anachis terpsichore
- Anadara antiquata Antique Ark
- Anadara consociata
- Anadara ferruginea
- Anadara gubernaculum
- Anadara inaequivalvis Inequivalve Ark
- Anadara indica
- Anadara natalensis
- Anadara pygmaea
- Ancilla acuminata
- Ancilla ampla
- Ancilla chrysoma
- Ancilla cinnamomea
- Ancilla farsiana
- Ancilla scaphella
- Angaria delphinus Lacinate Dolphin Shell
- Angaria rugosa
- Annulaturris annulata
- Anodontia edentula Toothless Lucine
- Anomalodiscus squamosus Squamose Venus
- Antigona chemnitzii Chemnitz's Cockle
- Antigona lamellaris Lamellate Venus
- Aplysia nigrocincta
- Aplysia punctata Spotted Seahare
- Arakawania granulata
- Arca navicularis Indo-Pacific Ark
- Architectonica laevigata smooth sundial
- Architectonica perspectiva Clear Sundial
- Architectonica purpurata
- Arestorides argus Eyed Cowrie
- Ariophanta albata
- Ariophanta basilessa
- Ariophanta basileus
- Ariophanta beddomei
- Ariophanta belangeri Belanger's Ariophanta
- Ariophanta cysis
- Ariophanta exilis
- Ariophanta intumescens
- Ariophanta laevipes Three-banded Ariophanta
- Ariophanta maderaspatana Madras Ariophanta
- Ariophanta semirugata Half-Wrinkled Ariophanta
- Ariophanta sisparica
- Ariophanta solata Freckled Ariophanta
- Armiger crista Nautilus Ram's-horn
- Astralium semicostatum half-ribbed star shell
- Astralium stellare blue-mouthed turban
- Atactodea striata Striated Little Trough Shell
- Atrina chinensis
- Atrina vexillum Flag Atrina
- Atys naucum
- Aurosepina arabica DD
- Babelomurex scalariformis
- Babylonia areolata Spotted Babylon Snail
- Babylonia kirana
- Babylonia spirata Spiral Babylon Snail
- Babylonia zeylanica Indian Babylon Snail
- Barbatia amygdalumtostum Almond Ark
- Barbatia obliquata Oblique Ark Shell
- Barbatia trapezina
- Barnea birmanica
- Batillaria sordida
- Beddomea physalis
- Beddomea trifasciata
- Bistolida hirundo Swallow Cowrie
- Bistolida rubiginosa
- Bistolida stolida
- Botula fusca Cinnamon Mussel
- Brachidontes variabilis Variable Mussel
- Bufonaria crumena Frilled Frog shell
- Bufonaria echinata
- Bufonaria elegans Elegant Frog shell
- Bufonaria foliata
- Bufonaria granosa
- Bufonaria rana Common Frog shell
- Bulla ampulla Bottle Bulla
- Bulla arabica
- Bulla vernicosa
- Bullata bullata
- Bullia livida
- Bullia melanoides
- Bullia tranquebarica
- Bullia vittata
- Bursa bufonia
- Bursatella leachii Ragged Seahare
- Bursina margaritula
- Calliostoma tornatum
- Calliostoma tranquebaricum
- Callista chinensis
- Callista multiradiata
- Callistocypraea nivosa
- Calocochlea tukanensis
- Canarium erythrinum elegant conch
- Canarium labiatum Labiate Stromb
- Cantharidus interruptus
- Cantharidus japonicus
- Cantharus erythrostoma
- Cantharus melanostoma black-mouthed goblet whelk
- Cantharus spiralis
- Cantharus tranquebaricus
- Cardiolucina eucosmia
- Cardiolucina semperiana
- Cardita crassicosta
- Cardita variegata Rectangular False Cockle
- Cardites bicolor Two-toned Cardita
- Casmaria erinaceus Common Bonnet Snail
- Casmaria ponderosa Heavy Bonnet Snail
- Cassidula nucleus
- Cassis cornuta Horned Helmet Snail
- Cellana radiata Rayed Wheel Limpet
- Cellana rota Rayed Limpet
- Cerastus abyssinicus
- Cerion mumia
- Cerithidea obtusa Red Chut-Chut
- Cerithium citrinum
- Cerithium coralium Coralline Cerith Snail
- Cerithium scabridum
- Cerithium tenellum
- Cerithium torresi
- Cerithium traillii
- Cerithium zonatum
- Chama fragum
- Chama pacifica reflexed jewel box
- Cheilea equestris False Cup-and-Saucer Limpet
- Chelycypraea testudinaria Tortoise Cowrie
- Chicoreus bourguignati
- Chicoreus brunneus The Burnt Murex
- Chicoreus peledi
- Chicoreus ramosus Ramose Murex
- Chicoreus rosarius
- Chicoreus torrefactus firebrand murex
- Chicoreus virgineus Virgin Murex
- Chloritis propinqua
- Chonospeira nuda
- Chromodoris mandapamensis
- Circe scripta Script Venus
- Cistopus taiwanicus Taiwan Pouched Octopus
- Clanculus microdon
- Clanculus pharaonius
- Clathrodrillia flavidula
- Clementia papyracea
- Clithon oualaniense Guamanian Nerite
- Clypeomorus bifasciata Double-banded Creeper
- Clypeomorus clypeomorus
- Clypeomorus isselii
- Clypidina notata Black-ribbed False Limpet
- Cominella nassoides
- Conasprella aculeiformis
- Conasprella coromandelica
- Conasprella dictator
- Conasprella eucoronata
- Conasprella insculpta
- Conasprella lentiginosa DD
- Conasprella longurionis
- Conasprella orbignyi
- Conasprella traceyi DD
- Conasprella viminea
- Conotalopia musiva
- Conus abbas Abbas Cone
- Conus achatinus Agate Cone
- Conus acutangulus Sharp-angled Cone
- Conus alabaster DD
- Conus amadis Amadis Cone
- Conus anabathrum Florida Cone VU
- Conus araneosus Cobweb Cone
- Conus arenatus Sand-dusted Cone
- Conus asiaticus
- Conus augur Auger Cone
- Conus australis Austral Cone
- Conus barthelemyi Barthelemy's Cone
- Conus bayani Bayan's Cone
- Conus bengalensis Bengal Cone
- Conus berdulinus
- Conus betulinus Beech Cone
- Conus biliosus Bilious Cone
- Conus boeticus
- Conus buxeus Box-Wood cone
- Conus caracteristicus Characteristic Cone
- Conus catus Cat Cone
- Conus ceylanensis
- Conus cingulatus
- Conus coccineus Berry Cone
- Conus consors Singed Cone
- Conus coronatus Coronated Cone
- Conus dispar
- Conus ebraeus Black-and-white Cone Snail
- Conus eximius Exceptional Cone
- Conus figulinus Fig Cone
- Conus generalis General Cone
- Conus geographus Geography Cone
- Conus glans The Acorn Cone
- Conus gloriakiiensis
- Conus gubernator Governor Cone
- Conus hamanni DD
- Conus hyaena Hyena Cone
- Conus imperialis The Darkened Cone
- Conus indomaris
- Conus inscriptus Inscribed Cone
- Conus leehmani
- Conus lemniscatus Ribbon Cone
- Conus leopardus Leopard Cone
- Conus litoglyphus Lithograph Cone
- Conus litteratus Lettered Cone
- Conus lividus Livid Cone
- Conus loroisii
- Conus lynceus
- Conus madagascariensis EN
- Conus malabaricus
- Conus malacanus Malacca Cone
- Conus milneedwardsi Glory-of-India Cone
- Conus moluccensis Molucca Cone
- Conus monachus Monastic Cone
- Conus monile Necklace Cone
- Conus mucronatus Alabaster Cone
- Conus musicus Music Cone
- Conus nicobaricus Nicobar cone
- Conus nimbosus Stormy Cone
- Conus nussatella
- Conus parvatus South African Music Cone
- Conus pennaceus Feathered Cone DD
- Conus pertusus lovely cone
- Conus planorbis Ringed Cone
- Conus praecellens Admirable Cone
- Conus pretiosus
- Conus quercinus Oak Cone
- Conus rattus Rat Cone
- Conus recluzianus Récluz Cone
- Conus striatellus
- Conus striatus Striated Cone
- Conus sukhadwalai
- Conus sulcatus Furrowed Cone
- Conus suratensis Surat Cone
- Conus taeniatus Ringed Cone
- Conus terebra terebra cone
- Conus tessulatus Tessellate Cone
- Conus textile Textile Cone
- Conus tribblei Tribble's Cone
- Conus tulipa Tulip Cone
- Conus tuticorinensis CR
- Conus vexillum Flag Cone
- Conus virgo Virgin Cone
- Conus zeylanicus Obese Cone
- Conus zonatus Zoned Cone
- Corbicula fluminea Asian Clam
- Corbicula striatella
- Corbula sulculosa
- Corbula taitensis
- Corilla anax
- Costacallista erycina
- Costacallista erycinella
- Costacallista planatella
- Costatophora iniqua
- Craspedochiton laqueatus
- Cremnoconchus conicus VU
- Crenocrassatella rostrata
- Creseis acicula
- Cribrarula cribraria Sieve Cowrie
- Cryptophysema vesicula
- Cryptospira glauca
- Cryptospira praecallosa
- Cryptospira strigata
- Cryptospira tricincta
- Cryptospira ventricosa
- Cryptozona ligulata Tied Cryptozona
- Ctena bella Beautiful Lucine
- Ctena divergens
- Cucullaea labiata Common Cowl Shell
- Cucullaearca foliata
- Cumingia sinuosa
- Cyathopoma album
- Cyathopoma anamallayanum
- Cyathopoma colletti
- Cyathopoma coonoorense
- Cyathopoma filocinctum
- Cyathopoma malabaricum
- Cyathopoma sivagherrianum
- Cyathopoma trochlea
- Cyathopoma vitreum
- Cyclophorus jerdoni
- Cyclophorus nilagiricus
- Cyclotellina remies
- Cymbiola nobilis Noble Volute
- Cypraea tigris Tiger Cowrie
- Cypraecassis rufa Bull Mouth Snail
- Cystiscus bucca
- Decatopecten plica
- Demissa nevilli
- Dendrodoris fumata
- Dendrodoris nigra Black Doris
- Dendropoma nebulosum
- Dentalium mannarense
- Dentalium octangulatum octagonal tusk shell
- Dentimodiolus striatulus
- Deroceras laeve Meadow Slug
- Desmaulus extinctorium
- Dicharax bawai
- Digoniostoma cerameopoma
- Digoniostoma pulchella
- Diodora clathrata
- Diodora lima
- Diodora singaporensis Mezumari-zaru-tengai
- Diplommatina depressa
- Diplommatina gracilis
- Distorsio reticularis France's Warp Shell
- Ditropopsis planorbis
- Divalucina cumingi Lace Cockle
- Dolabella auricularia Blunt-end Seahare
- Dolomena marginata
- Dolomena plicata plicate conch
- Dolomena pulchella pretty conch
- Dolomena sibbaldii
- Dolomena succincta
- Dominus labiosus
- Domiporta circula
- Domiporta granatina
- Donax aeneus
- Donax denticulatus Common Caribbean Donax
- Doriprismatica atromarginata Black-margined Nudibranch
- Dosinia cretacea
- Dosinia erythraea
- Dosinia herbariorum
- Dosinia histrio
- Dosinia prostrata
- Dosinia subrosea Smooth Dosinia
- Douglassia enae
- Drillia dunkeri
- Drupa morum Mulberry Drupe
- Drupella cornus Horn Drupe
- Drupella margariticola Oyster Drill
- Drupella rugosa Coral-eating Whelk
- Dulcerana granularis
- Duplicaria duplicata Duplicate Auger
- Duplicaria spectabilis
- Duplicaria tricincta
- Echinolittorina leucosticta
- Echinolittorina malaccana Malacca echinolittorina
- Echinolittorina millegrana
- Echinolittorina pascua
- Echinolittorina quadricincta
- Eclogavena interrupta
- Emarginella incisura
- Emarginella obovata
- Engina mendicaria Bumblebee Snail
- Engina menkeana
- Engina zonalis
- Enigmofusus beckii
- Ennucula layardii
- Ensiculus cultellus Knife Finger Oyster
- Epitonium immaculatum
- Epitonium pallasi Pallas' Wentletrap
- Epitonium scalare precious wentletrap
- Ercolania gopalai
- Ercolania pica
- Ergaea walshi
- Ergalatax contracta Contracted Buccinum
- Ergalatax heptagonalis
- Erronea adusta Dark Onyx Cowrie
- Erronea caurica Thick-edged Cowrie
- Erronea errones Erroneous Cowrie
- Erronea onyx Onyx Cowrie
- Erronea ovum Golden-mouth Cowrie
- Erronea pallida Pale Cowrie
- Erronea pyriformis Pyriform Cowrie
- Etrema scalarina
- Eualetes tulipa
- Euanodontia ovum
- Eubranchus productus
- Euchelus asper
- Euchelus atratus
- Euchelus circulatus
- Eunaticina papilla
- Euplecta acuducta
- Euplecta albizonata
- Euplecta apicata
- Euplecta granulifera
- Euplecta indica
- Euplecta mucosa
- Euplecta oribates
- Euplica scripta Dotted Dove Shell
- Euprymna hyllebergi DD
- Euprymna stenodactyla DD
- Eurytrochus blanfordianus
- Euselenops luniceps Moon-headed Sidegill Slug
- Exosiperna relata
- Ficadusta pulchella beautiful cowrie
- Ficus ficus Paper Fig Shell
- Ficus gracilis graceful fig shell
- Ficus investigatoris
- Ficus subintermedia
- Ficus variegata True Fig Shell
- Filifusus filamentosus
- Filopaludina bengalensis Common banded pond snail
- Fimbria sowerbyi
- Fulvia australis
- Fulvia laevigata
- Fusinus colus
- Fusinus forceps
- Fusinus toreuma
- Gabbia costigera
- Gabbia orcula
- Gabbia stenothyroides
- Gadila anguidens
- Gafrarium dispar
- Gafrarium divaricatum Forked Venus
- Gafrarium pectinatum Comb Circe
- Gafrarium tumidum Swollen Circe
- Gastrana matadoa
- Gastrochaena cuneiformis
- Gibberulus gibberulus Gibbose Stromb
- Gittenedouardia orbus
- Glaucilla marginata Margined Sea Lizard
- Glaucus atlanticus Sea Swallow
- Glessula bensoniana
- Glessula courtallica
- Glessula gemma
- Glessula mullorum
- Glessula praelustris
- Glessula shiplayi
- Glessula textilis
- Globarene cidaris
- Glossaulax vesicalis
- Glossodoris humberti
- Glycymeris taylori
- Glyphepithema alapapilionis
- Goniobranchus bombayanus Bombay Dorid
- Goniobranchus trimarginatus Triple-margined dorid
- Granuliterebra bathyrhaphe
- Graptacme elpis
- Gyrineum bituberculare
- Gyrineum bozzettii
- Gyrineum natator Common Triton Snail
- Haliotis ovina sheep's ear abalone
- Haliotis varia Variable abalone
- Haloa constricta
- Haloa crocata
- Haloa wallisii
- Hancockia papillata
- Hapalochlaena fasciata Blue-lined Octopus
- Harpa articularis Articulate harp
- Harpa davidis Madras Harp
- Harpa major
- Harpago chiragra Chiragra Conch
- Harpulina arausiaca
- Harpulina lapponica
- Harpulina loroisi
- Hastula albula
- Hastula cinerea Grey Atlantic Auger
- Hastula raphanula
- Hastula strigilata Combed Auger
- Haustellum haustellum Snipe's Bill
- Haustellum langleitae
- Hecuba scortum
- Heliacus stramineus straw sundial
- Hemidonax donaciformis
- Hemipolygona amaliae
- Hexacorbula sinensis
- Hiatula diphos
- Hippopus hippopus Bear Paw Clam VU
- Homalocantha lamberti
- Homalocantha secunda
- Huttonella bicolor Two-tone Gulella
- Hydatina albocincta White-banded Bubble Snail
- Hydatina physis Brown-lined Paperbubble
- Hydatina zonata Zoned Paper Bubble Snail
- Hypselodoris kanga
- Hypselodoris zebrina
- Idiopoma dissimilis
- Imbricaria annulata
- Imbricaria insculpta
- Indentina scalpellum
- Indonaia rugosa
- Indoplanorbis exustus
- Indothais blanfordi Blanford's Whelk
- Indothais lacera Carinate Rock Shell
- Indothais sacellum
- Indrella ampulla Red Giant
The first 500 by name. See them on the map, with filters.
Molluscs elsewhere
India · Andaman and Nicobar · Andhra Pradesh · Arunachal Pradesh · Assam · Bihar · Chandigarh · Chhattisgarh · Dadra, Nagar Haveli, Daman and Diu · Delhi · Goa · Gujarat · Haryana · Himachal Pradesh · Jammu and Kashmir · Jharkhand · Karnataka · Kerala · Ladakh · Lakshadweep · Madhya Pradesh · Maharashtra · Manipur · Meghalaya · Mizoram · Nagaland · Odisha · Puducherry · Punjab · Rajasthan · Sikkim · Telangana · Tripura · Uttar Pradesh · Uttarakhand · West Bengal · Trans-Himalaya · Himalaya · Desert · Semi-Arid · Western Ghats · Deccan Peninsula · Gangetic Plain · Coasts · North-East · Islands
Other species of Tamil Nadu
Birds · Large mammals · Bats · Rodents, shrews and hares · Whales, dolphins and other mammals · Reptiles · Amphibians · Fish · Butterflies · Moths · Dragonflies and damselflies · Beetles · Bees, wasps and ants · Flies · True bugs · Other insects · Spiders and other arachnids · Crabs, shrimps and kin · Orchids · Grasses and sedges · Ferns and lycophytes · Other flowering plants and conifers · Mosses and liverworts · Lichens · Fungi · Algae and diatoms · Other species