Marine Invertebrates

Marine Invertebrate field guide

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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

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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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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

Ocypode cordimana (Smooth-Handed Ghost Crab)

Ocypode cordimana
Ocypode cordimana
Ocypode cordimana

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

Ophiarachnella ramsayi (Brittle Star)

Image Jenny Edwards

Image Jenny Edwards

Ophiarachnella ramsayi
Ophiarachnella ramsayi
Image Jenny Edwards

Ophionereis schayeri (Banded Brittle Star)

image Jenny Edwards

image Jenny Edwards

image Liz A

image Liz A
Image Liz A

Image Liz A
image Jenny Edwards
image Liz A
Image Liz A

Ostracoda (class) (Microcrustaceans)

Ostrea (Eostrea) angasi (Tasmanian Flat Oyster)

Tasmania (D. Dedenczuk)

Tasmania (D. Dedenczuk)

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

Oulactis muscosa (Sand Anemone)

Photo liz allen

Photo liz allen

Image Liz Allen

Image Liz Allen
Oulactis muscosa
Photo liz allen
Image Liz Allen

Ovalipes australiensis (Sandy)

AUST museum Michael Marmach

AUST museum Michael Marmach

photo Liz A

photo Liz A
AUST museum Michael Marmach
photo Liz A

Ozius deplanatus (Ozius deplanatus)

ALA image

ALA image

Ozius deplanatus
Ozius deplanatus
ALA image

Paguristes sp. (Hermit Crab)

Pagurus sinuatus (Pagurus sinuatus)

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