title: A new species of Paracaprella Mayer, 1890 (Amphipoda: Caprellida: Caprellidae) from southern Brazil.
abstract: A new species of the genus Paracaprella is described based on the specimens associated with the algae Sargassum cymosum and Laurencia obtusa that were collected from infralittoral depths (0.5 to 3.0 m) at Sepultura Beach, Bombinhas and Paciência Beach, Penha, Santa Catarina State, Brazil. This new species differs from the others of the genus by the unique morphology of the males' gnathopod 2: its propodus has a grasping margin provided with a deep groove. An identification key for Paracaprella species is also presented.
authors.affiliation: Laboratório de Ecologia de Crustacea, Departamento de Zoologia, Universidade Federal do Paraná. Centro Politécnico, Jardim das Américas, Caixa Postal 19020. CEP 81531-980 Curitiba, PR, Brasil.; Email: lacerdamariana@yahoo.com.br.
authors.forename: Mariana B
authors.initials: MB
authors.lastname: Lacerda
authors.affiliation: Laboratório de Ecologia de Crustacea, Departamento de Zoologia, Universidade Federal do Paraná. Centro Politécnico, Jardim das Américas, Caixa Postal 19020. CEP 81531-980 Curitiba, PR, Brasil.; Email: unknown.
authors.forename: Setuko
authors.initials: S
authors.lastname: Masunari
mesh_terms: D033304:Amphipoda / Q000033:anatomy & histology / Q000145:classification* / Q000254:growth & development; D063147:Animal Distribution; D000825:Animal Structures / Q000033:anatomy & histology / Q000254:growth & development; D000818:Animals; D049628:Body Size; D001938:Brazil; D017753:Ecosystem; D005260:Female; D008297:Male; D009929:Organ Size