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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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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Myadora complexa (Myadora complexa)

Broulee, NSW 2014 (D. Dedenczuk)

Broulee, NSW 2014 (D. Dedenczuk)

Broulee, NSW 2014 (D. Dedenczuk)

Mytilus edulis (Blue Mussel)

Tasmania (D. Dedenczuk)

Tasmania (D. Dedenczuk)

Mytilus edulis
Mytilus edulis
Tasmania (D. Dedenczuk)

Mytilus galloprovincialis (Bay Mussel)

Nassarius (Niotha) nigellus (Tasmanian Dog Whelk)

(D. Dedenczuk)

(D. Dedenczuk)

(D. Dedenczuk)

Nassarius (Plicarcularia) jonasii (Jonas's Dog Whelk)

Nassarius jonasii - Batehaven 2010 (D. Dedenczuk)

Nassarius jonasii - Batehaven 2010 (D. Dedenczuk)

Nassarius jonasii - Batehaven 2010 (D. Dedenczuk)

Nerita atramentosa (Black Nerite)

Nerita melanotragus (Black Nerite)

Batehaven 2010 (D. Dedenczuk)

Batehaven 2010 (D. Dedenczuk)

Nerita melanotragus
Nerita melanotragus
Batehaven 2010 (D. Dedenczuk)

Nerita sp.

Nerita sp.
Nerita sp.
Nerita sp.

Nodilittorina pyramidalis (Nodilittorina pyramidalis)

image by Liz Allen

image by Liz Allen

Nodilittorina pyramidalis
Nodilittorina pyramidalis
image by Liz Allen

Octopus australis (Hammer Octopus)

Octopus maorum (Maori Octopus)

photo by Mark Norman Vic.

photo by Mark Norman Vic.

Octopus maorum
Octopus maorum
photo by Mark Norman Vic.

Octopus sp. (Octopus)

Octopus tetricus (Gloomy Octopus)

Octopus tetricus
Octopus tetricus
Octopus tetricus

Odontotrochus indistinctus (Comtesse's Top Shell)

Batehaven 2010 (D. Dedenczuk)

Batehaven 2010 (D. Dedenczuk)

Batehaven 2010 (D. Dedenczuk)

Okenia mija

Matt Nimbs Bruce Steer Pool 2019

Matt Nimbs Bruce Steer Pool 2019

Matt Nimbs Bruce Steer Pool 2019

Onchidella patelloides (Onchidella patelloides)

Onchidella patelloides
Onchidella patelloides

Opalia (Dentiscala) ballinensis (Opalia (Dentiscala) ballinensis)

Opalia (Dentiscala) ballinensis

Opalia australis (Southern Wentletrap)

Opalia australis
Opalia australis

Ostrea (Eostrea) angasi (Tasmanian Flat Oyster)

Tasmania (D. Dedenczuk)

Tasmania (D. Dedenczuk)

Ostrea (Eostrea) angasi
Ostrea (Eostrea) angasi
Tasmania (D. Dedenczuk)

Panopea australis (Australian Gaper)

Marion Bay, Tasmania 2007 (D. Dedenczuk)

Marion Bay, Tasmania 2007 (D. Dedenczuk)

Marion Bay, Tasmania 2007 (D. Dedenczuk)

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1,905,530 sightings of 21,334 species from 13,139 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.