Marine Invertebrates

Marine Invertebrates

Add a sighting Subscribe View significant View unidentified

Marine Invertebrates

Anemones, Jellyfish, Comb Jellies & allies (Cnidaria & Ctenophora)
Crabs, Prawns, Barnacles & allies (Crustacea)
Sea Shells, Sea Slugs, Octopuses & allies (Mollusca)
Sea Stars, Sea Urchins & allies (Echinodermata)
Other Marine Invertebrates

Moderators

become a moderator

Announcements

NatureMapr now receives more records in NSW than ACT
7 Mar 2025

Since 1 Jan 2025, NatureMapr 44% of all sightings uploaded were NSW based, while 43% were from the ACT.The remaining 13% were from other states, with VIC coming in third at 5%.Strictly speaking, 67% o...

Continue reading

NatureMapr Data Collector 6.2.1 update

Critical nature positive infrastructure update

IMPORTANT NatureMapr Data Collector 6.2.0 mobile app update

Known issue affecting user registration via naturemapr mobile app

Discussion

Jennyncmg wrote:
Yesterday
I think it is Haliotis brazieri but this is not on the drop down
Unidentified Sea Snail or Limpet (Gastropoda)
Jimbobo wrote:
6 Mar 2025
Maori Octopus to my eye. Dark Rust colouration and it appears to have diagnostic finger like papillae on mantle. But hard to be 100% certain.
Octopus maorum
Jimbobo wrote:
6 Mar 2025
Eye colour is not a reliable diagnostic. Ref- https://inaturalist.ala.org.au/journal/jimbobo
Octopus tetricus
Jennyncmg wrote:
6 Mar 2025
I didn't think the underside of the arms were orange enough to be O tetricus but maybe they are more variable
Octopus tetricus
Jimbobo wrote:
6 Mar 2025
Juvenile Calamari Squid. Pygmy Squid are tiny, less than 2cm long and only have small fin flaps near end of mantle.
Sepioteuthis australis

Species Richness Score (SRS)

Top contributors

Top moderators

802,127 sightings of 21,664 species from 13,550 contributors
CCA 3.0 | privacy
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.