Oxytoxum scolopax is a species of . They are native to Bahia, Alagoas, Santa Catarina, SãO Paulo, Pará, Espirito Santo, Amapá, Sergipe, Rio Grande Do Sul, Rio Grande Do Norte, Rio De Janeiro, and Paraná.
Definition: Living in the fluid medium (water or air) but unable to maintain their position or distribution independently of the movement of the water/air mass (adapted from Lincoln et al., 1998).