Best Gelatinous

Icosteus aenigmaticus is a gelatinous North Pacific deep-sea fish whose adults retain a largely cartilaginous skeleton rather than the ossified bones typical of most teleosts.

Schizymenia dubyi is a red alga of the family Schizymeniaceae occurring in the North Atlantic and Mediterranean, recognized by its gelatinous, undivided, reddish-purple blades.

Dudresnaya verticillata is a red alga of the family Dumontiaceae studied since the 1800s for its unusually complex carposporophyte development in the Mediterranean and Atlantic.

Predaea huismanii is a red alga of the family Nemastomataceae named after Australian phycologist John Huisman and described from specimens collected in the Indo-Pacific.