Marine Invertebrates
Sea Shells, Sea Slugs, Octopuses & allies (Mollusca)

Sea Shell, Sea Slug or Octopus (Mollusca) field guide

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Sea Shells, Sea Slugs, Octopuses & allies (Mollusca)

Sea Snails, Limpets (Gastropoda, excluding Euthyneura)
Sea Slugs, Sea Hares, Bubble Shells (Gastropoda, Euthyneura)
Pipis, Clams, Oysters (Bivalvia)
Chitons (Polyplacophora)
Octopuses, Squids (Cephalopoda)
Tusk Shells (Scaphopoda)

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Critically endangered * Endangered * Vulnerable * Very rare / threatened Rare or uncommon native Local native Non-local native Vagrant native Cosmopolitan Migratory Exotic Locally extinct Unknown
Non-invasive or negligible Minor weed or pest Medium weed or pest Major weed or pest Severe weed or pest Unknown

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Polycera capensis (Crowned nudibranch)

Polycera capensis
Polycera capensis
Polycera capensis
Polycera capensis
Polycera capensis
Polycera capensis

Polycera hedgpethi

Pseudamycla dermestoidea (Pseudamycla dermestoidea)

Pseudamycla dermestoidea
Pseudamycla dermestoidea
Pseudamycla dermestoidea
Pseudamycla dermestoidea

Pteraeolidia ianthina (Blue Dragon)

Pteraeolidia ianthina
Pteraeolidia ianthina
Pteraeolidia ianthina
Pteraeolidia ianthina
Pteraeolidia ianthina
Pteraeolidia ianthina

Pyrazus ebeninus (Mud Whelk)

Pyrazus ebeninus
Pyrazus ebeninus

Ranella australasia (Ranella australasia)

Ranella australasia
Ranella australasia

Rissoina (Rissoina) fasciata (Rissoina (Rissoina) fasciata)

Rissoina (Rissoina) fasciata
Rissoina (Rissoina) fasciata

Rostanga arbutus (Rostanga arbutus)

Rostanga arbutus
Rostanga arbutus
Rostanga arbutus
Rostanga arbutus
Rostanga arbutus
Rostanga arbutus

Sabia conica (Conical Horse-Hoof / Bonnet Limpet)

Saccostrea glomerata (Sydney Rock Oyster)

Saccostrea glomerata
Saccostrea glomerata
Saccostrea glomerata
Saccostrea glomerata
Saccostrea glomerata
Saccostrea glomerata

Sassia (Sassia) parkinsonia (Parkinson's Triton)

Sassia (Sassia) parkinsonia
Sassia (Sassia) parkinsonia

Scutus antipodes (Elephant Snail)

Scutus antipodes
Scutus antipodes
Scutus antipodes
Scutus antipodes
Scutus antipodes
Scutus antipodes

Semicassis (Semicassis) pyrum (White Helmet)

Semicassis (Semicassis) pyrum
Semicassis (Semicassis) pyrum

Semicassis labiata (Semicassis labiata)

Semicassis labiata
Semicassis labiata
Semicassis labiata
Semicassis labiata

Sepia apama (Giant Cuttlefish)

Sepia apama
Sepia apama
Sepia apama
Sepia apama
Sepia apama
Sepia apama

Sepia mestus (Reaper Cuttlefish)

Sepia rozella (Rosecone Cuttlefish)

Sepia sp. (genus) (Cuttlefish)

Sepia sp. (genus)
Sepia sp. (genus)
Sepia sp. (genus)
Sepia sp. (genus)
Sepia sp. (genus)
Sepia sp. (genus)

Serpulorbis sipho (Tube Mollusc)

Serpulorbis sipho
Serpulorbis sipho

Sigapatella calyptraeformis (Saucer Limpet)

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1,902,143 sightings of 21,178 species in 9,368 locations from 13,029 contributors
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We acknowledge the Traditional Owners of this land and acknowledge their continuing connection to their culture. We pay our respects to their Elders past and present.