Marine Invertebrates

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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

Featured sightings

Catostylus mosaicus (Blue Blubber) at Ku-Ring-Gai Chase, NSW - 27 Apr 2022 by KMcCue

Astropecten sp. (genus) at Toogoom, QLD - 20 Aug 2024 by BlueBowerArt

Hypselodoris obscura (Hypselodoris obscura) at Narooma, NSW - 6 Apr 2018 by BillBarker

Asteroidea (class) at Hope Vale, QLD - 5 Jul 2024 by GlossyGal

Catostylus mosaicus (Blue Blubber) at Lake Illawarra, NSW - 17 Sep 2023 by lbradley

Mictyris longicarpus (Soldier Crab) at Narooma, NSW - 11 Jul 2022 by GlossyGal

Unverified Anemone, Coral, Sea Pen at Pardoo, WA - 27 Oct 2022 by AaronClausen

Hydatina physis (Brown-line Paperbubble) at Wapengo, NSW - 21 Mar 2020 by bdixon75

Latest sightings

Unverified Other Marine Invertebrate at Dungog, NSW - 12 Apr 2025 by HughCraig9

Mictyris longicarpus (Soldier Crab) at Merimbula, NSW - 25 Apr 2025 by Clarel

Portunus pelagicus at Coffs Harbour, NSW - 11 Apr 2025 by LyndalT

Leptograpsus variegatus (Purple Rock Crab) at Pretty Beach, NSW - 21 Apr 2025 by Clarel

Parasesarma erythodactyla (Red-handed shore crab) at Surfside, NSW - 20 Apr 2025 by mroseby

Heloecius cordiformis at Surfside, NSW - 20 Apr 2025 by mroseby

Mictyris longicarpus at Surfside, NSW - 20 Apr 2025 by mroseby

Aplysia sp. at Merimbula, NSW - 13 Apr 2025 by theokarner

Heloecius cordiformis at Bodalla, NSW - 9 Apr 2025 by MB

Unverified Crab at Rosslyn, QLD - 14 Oct 2024 by NateKingsford

Unverified Polychaete Worm at Tharwa, ACT - 30 Mar 2025 by ChrisHolder

Leptograpsus variegatus at Merimbula, NSW - 29 Mar 2025 by VanceLawrence

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Discussion

Clarel wrote:

22 Apr 2025

That’s nice to know, thanks. :)

Leptograpsus variegatus

Jennyncmg wrote:

22 Apr 2025

This is a moult of a female judging by the empty eyes (indicating a moult) and the wide abdominal f;lap which females have to hold their eggs

Leptograpsus variegatus

Jennyncmg wrote:

31 Mar 2025

I.m guessing Leptograpsus variegatus because the claws look to be partially purple colour

Leptograpsus variegatus

DavidDedenczuk wrote:

24 Mar 2025

thanks Jenny. that's an amazing distance inland.

Ocypode cordimana

Jennyncmg wrote:

24 Mar 2025

As I cant see the eyestalks properly this is a guess based on the fact that the ghost crabs are this colour and their tunnels can go well inland by 100m or so.

Ocypode cordimana

Significant sightings

Scylla serrata at Wonboyn, NSW

Recent activity

Mictyris longicarpus at Merimbula, NSW

Mictyris longicarpus at Merimbula, NSW

Portunus pelagicus

Parasesarma erythodactyla at Surfside, NSW

Leptograpsus variegatus at Pretty Beach, NSW

Leptograpsus variegatus at Pretty Beach, NSW

Parasesarma erythodactyla at Surfside, NSW

Heloecius cordiformis

Mictyris longicarpus

Species Richness Score (SRS)

987

Top contributors

Hejor1 326
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814,317 sightings of 22,145 species from 13,907 members
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