thecosomata

Limacina antarctica

…is a species of sea butterfly (a group of swimming sea snails that belong to the clade Thecosomata) that boasts a circumpolar distribution, occurring in the Weddell Sea and Ross Sea in the Antarctic and in Cumberland Bay, South Georgia and other areas in the southern ocean.  L. antarctica is most abundant in the Ross Sea and can sometimes even outnumber krill. L. antarctica is a predator and feeds mainly on phyto and zoo plankton, which are caught using “mucus webs”.

Classification

Animalia-Mollusca-Gastropoda-Heterobranchia-Euthyneura-Euopisthobranchia-Thecosomata-Limacinoidea-Limacinidae-Limacina-L. antarctica

Image: R. Giesecke