Umncumu

Umncumu noma imincumu iyizinhlanzi ezidla inyama emanzini anetswayi ezitholakala emndenini omkhulu wezinkembane, ezibonakala ngezindebe ezicijile eziyimincumu ezivelele, nangobukhulu bazo obukhulu; ezinye zinde kunezingamamitha amane. Imincumu ihlanganisa izinhlanzi ezifana namazwezwe (sailfish) kanye nexhushela (marlin), ezakha umndeni wamathanta ; kanye nembelu, ilungu elilodwa lomndeni wezinkembaneni . Ngokuvamile ziyizilwane ezidla izinhlanzi ezincane eziningi.