First record of the association between the leech Helobdella triserialis (Hirudinea, Glossiphoniidae) and two species of Pomacea (Gastropoda, Ampullariidae) in Brazil - Carli, B.P; Rotundo, M.M; Paschoal, L.R.P; Andrade, D.P; Cavallari, Daniel Caracanhas; Oceguera-Figueroa, A; Alonso, D. D (Pan-American Journal of Aquatic Sciences, 2014)