WHATSTHATFISH
Sea slugs & snails

Redline Flabellina

Coryphellina rubrolineata

Also known as: Aeolid Nudibranch, Flabellina Nudibranch, Flabellina Sea Slug, Jelly-bodied Nudibranch, Nudibranch, Red-lined Flabellina, Sonic-the-Hedgehog Nudibranch

Adult
@blogie · Big Ligid Dive Site, Island Garden City of Samal, Philippines · December 20111 / 1
01

Overview

Found singly or in pairs, amongst rubble and sandy areas, of coral and rocky reefs, rich in hydroid growth.

Opisthobranchia - Nudibranchs - Sea Slugs meaning "naked gills" are molluscs without a hard shell.
All opisthobranchs are hermaphrodites.
These beautiful slugs are usually brilliantly coloured and this in itself can act as a deterrent against predators. Some sea slugs secrete acid from stinging cells in their tentacles while others secrete acid from cells in their mantle.
Nudibranchs are slow moving, can swim or be propelled along either by muscular contraction or by millions of tiny hairs on the bottom of a fleshy 'foot', they have a voracious appetite and feed with a rasp like tongue.
Nudibranch lay their eggs in a ribbon effect on the sand, in different colours depending on species.

02

How to identify

COLOURS
Body shape
tentacles
Behaviour
pairssolitary

Tap any trait to see other fish that share it.

03

Habitat & where to find it

  • Range · Circumtropical
  • Country only · 1
LIVES IN

Found singly or in pairs, amongst rubble and sandy areas, of coral and rocky reefs, rich in hydroid growth.

04

Adult photos 1

05

Discussion

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    ALL STAGES
    FOR THE MARINE-BIOLOGY CURIOUS

    Deep dive

    Taxonomy

    1. kingdomAnimalia
    2. phylumMollusca
    3. classGastropoda
    4. orderNudibranchia
    5. familyFlabellinidae
    6. genusCoryphellina
    7. speciesCoryphellina rubrolineata O'Donoghue, 1929

    SourcesWoRMSSea Slug Forum

    06

    More in the family

    Sea Slugs (Flabellinidae)