FIGURE 4. Hyalella carsone sp. nov., municipality of Bocaina do Sul, state of Santa Catarina (27°44′4.4″S 49°59′1.0″W). Paratype male, 6.75 mm, CCUFLA 449. (A) Gnathopod 1. (A1) Detail of carpus. (A2) Detail of propodus and dactylus. (B) Gnathopod 2. (B1) Detail of carpus. (B2) Detail of propodus and dactylus. Scale bars: A and B—0.4mm; A1 and A2—0.1 mm; B1 and B2—0.2 mm.Published as part of Reis, Giovanna De Oliveira, Bueno, Alessandra Angélica De Pádua & Araujo, Paula Beatriz, 2023, Two new species of Hyalella Smith, 1874 (Malacostraca: Amphipoda: Hyalellidae) from the state of Santa Catarina, Brazil, pp. 351-372 in Zootaxa 5319 (3) on page 355, DOI: 10.11646/zootaxa.5319.3.3, http://zenodo.org/record/820295