Index
Kromme-Geelhout-Database

Species details

Genus

Genus : Janthina
Family: Janthinidae (Mollusca/Gastropoda)
Taxon : Marine Molluscs
Group : Animal

SPECIES
janthina
NOTES

A shell to 35 mm which is wider than high and has a large aperture. The body whorl is inflated, has a shallow notch in the margin of the outer lip and the columella is twisted. A pelagic species which hangs upside down from a raft of mucus-coated bubbles. Feeds on jellyfish, crustaceans and zooplankton. The eggs are kept in the body until they hatch.


AUTHORITY
(Linnaeus, 1758)
Sub Author
Conservation
Rare
Habit
Not Applicable
Land Invertebrate
n/a 


Colour
Notes: Violet or white above and dark purple on the base
Colour: Purple
Notes: Shell may be white above
Colour: White
Common Name
Violet shells
Bloubottles
Foam shell
Skuimskulp
Purple sea snail
Habitat
NOTES: Collected 1989 on the beach at the river mouth
HABITAT NAME: Beach
Uses
None known
None
Months
All year
Synonyms for Species
Helix janthina
Janthina affininis
Janthina alba
Janthina baleata
Janthina bicolor
Janthina africana



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