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

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

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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)

Featured sightings

Latest sightings

Janthina janthina (Violet Sea Snail) at Tuross Head, NSW by HelenCross
Sepia sp. (genus) at Warrnambool, VIC by AlisonMilton
Sepia sp. (genus) at Flinders, VIC by AlisonMilton
Glaucus atlanticus at Durras North, NSW by JW
Octopus tetricus at Depot Beach, NSW by AlisonMilton
Aplysia juliana at Depot Beach, NSW by AlisonMilton
Mytilus edulis at Boydtown, NSW by AlisonMilton
Pecten (Pecten) fumatus at Boydtown, NSW by AlisonMilton
Bursatella leachii (Ragged Seahare) at Sunshine Bay, NSW by Harrisi
Unidentified Sea Shell, Sea Slug or Octopus (Mollusca) at Broulee, NSW by AlisonMilton
Sepia sp. (genus) (Cuttlefish) at Broulee, NSW by AlisonMilton
Unidentified Sea Snail or Limpet (Gastropoda) at Redcliffe, QLD by trevorpreston
Sepia sp. (genus) (Cuttlefish) at Guerilla Bay, NSW by Hejor1
Janthina janthina (Violet Sea Snail) at Guerilla Bay, NSW by Hejor1
Saccostrea glomerata (Sydney Rock Oyster) at Guerilla Bay, NSW by Hejor1
Haliotis rubra rubra (Blacklip Abalone) at Guerilla Bay, NSW by Hejor1
Austrolittorina unifasciata (Blue Australwink) at Guerilla Bay, NSW by Hejor1
Nerita melanotragus at Guerilla Bay, NSW by Hejor1
Cellana tramoserica (Commom Limpet) at Guerilla Bay, NSW by Hejor1
Lunella undulata (Green Turban Shell/Warrener) at Guerilla Bay, NSW by Hejor1
Sypharochiton pelliserpentis (Snakeskin Chiton) at Guerilla Bay, NSW by Hejor1
Bembicium nanum at Guerilla Bay, NSW by Hejor1
Lunella undulata (Green Turban Shell/Warrener) at Guerilla Bay, NSW by Hejor1
Cellana tramoserica (Commom Limpet) at Malua Bay, NSW by Hejor1
Sypharochiton pelliserpentis (Snakeskin Chiton) at Malua Bay, NSW by Hejor1
Sepia sp. (genus) (Cuttlefish) at Malua Bay, NSW by Hejor1
Austrolittorina unifasciata (Blue Australwink) at Malua Bay, NSW by Hejor1
Saccostrea glomerata (Sydney Rock Oyster) at Malua Bay, NSW by Hejor1
Dicathais orbita at Malua Bay, NSW by Hejor1
Pleurobranchus peronii (Pleurobranchus peronii) at Malua Bay, NSW by Hejor1
Hydatina physis (Brown-line Paperbubble) at Malua Bay, NSW by Hejor1
Austrocochlea porcata (Zebra top snail) at Malua Bay, NSW by Hejor1
Tenguella marginalba (Mulberry shell) at Malua Bay, NSW by Hejor1
Diloma concamerata (Tessellated Top Shell) at Malua Bay, NSW by Hejor1
Nerita sp. at Malua Bay, NSW by Hejor1
Sypharochiton pelliserpentis at Vincentia, NSW by Miranda

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Discussion

Jennyncmg wrote:
6 Jan 2025
These feed on bluebottles and by-the-wind sailors.
Glaucus atlanticus
Jennyncmg wrote:
5 Jan 2025
I agree with the identification but the program would not let me verify
Hydatina physis
Seakukumber wrote:
4 Jan 2025
I saw 4 individual specimens of the Hydatina physis while snorkelling off the rocks at the north end of “The Farm” Killalea Regional Park, Shell Cove NSW.
Hydatina physis
Jennyncmg wrote:
3 Jan 2025
I chose O.tetricus because the undersides of its arms appear to be orange-red.
Octopus tetricus
Jennyncmg wrote:
1 Jan 2025
Another common name is the blue-spotted seahare
Bursatella leachii

Recent activity

Janthina janthina at Tuross Head, NSW

Janthina janthina at Tuross Head, NSW

Sepia sp. (genus)

Sepia sp. (genus)

Glaucus atlanticus

Octopus tetricus

Mytilus edulis

Aplysia juliana

Trichomya hirsuta

Pecten (Pecten) fumatus

Species Richness Score (SRS)

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1,905,479 sightings of 21,334 species from 13,137 contributors
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