taxonID	type	description	language	source
B7795511B949FF99FF2B8F3FFBDAF94B.taxon	materials_examined	Type material. HOLOTYPE: male, head length 0.62 mm, total body length 5.23 mm, Brazil, state of Rio Grande do Sul, municipilaty of Palmeira das Missões, locality of Capão Alto, Distrito de Santa Rosa (27 ° 51 ’ 38.1 ” S- 53 ° 15 ’ 12.0 ” W), MNRJ 028999, December, 04 2014, Castiglioni, D. S. & Streck-Marx, M. T. colls. ALLOTYPE FEMALE, head length 0.50 mm, total body length = 4.19 mm, Brazil, state of Rio Grande do Sul, municipality of Palmeira das Missões, locality of Capão alto, Distrito de Santa Rosa (27 ° 51 ’ 38.1 ” S- 53 ° 15 ’ 12.0 W), MNRJ 029000, December, 04 2014, Castiglioni, D. S. & Streck-Marx, M. T. colls. PARATYPES: MNRJ 29001 (10 males and 10 females), with the same place and data as holotype. Measurements from paratypes: males - mean total body length 4.60 mm, mean head length 0.54 mm (n = 10); females - mean total body length 3.91 mm, mean head length 0.46 mm (n = 10). Type locality. Brazil, state of Rio Grande do Sul, municipality of Palmeira das Missões, Distrito de Santa Rosa, locality of Capão Alto (27 ° 51 ’ 38.1 ” S- 53 ° 15 ’ 12.0 ” W), spring (Várzea river basin), 526 m (Fig. 1).	en	Limberger, Marcio, Castiglioni, Daniela Da Silva, Graichen, Daniel Ângelo Sganzerla (2021): A new species of freshwater amphipod (Crustacea, Peracarida, Hyalellidae) from Southern Brazil. Zootaxa 5026 (2): 182-200, DOI: https://doi.org/10.11646/zootaxa.5026.2.2
B7795511B949FF99FF2B8F3FFBDAF94B.taxon	diagnosis	Diagnosis. Body surface smooth, epimeral plates not acuminate. Eyes pigmented. Antenna 1 shorter than antenna 2. Antenna 2 longer than half of body length. Mandible incisor toothed. Maxilla 1 palp minute, reaching less than half length the distance between base of palp and tip of setae on outer plate; inner plate slender, with two papposerrate apical setae. Maxilla 2, inner margin of inner plate with two papposerrate setae, being one of them stronger and longer. Gnathopod 1 propodus hammer shape, inner face with seven serrate setae, denticles as comb scales on distoposterior margin, posterior lobe of carpus with border pectinate. Gnathopod 2 propodus, elongated, irregular palm and with a triangular space between propodus and dactylus when this is closed, distoposterior margin of denticles as comb-scales, posterior lobe of carpus with border pectinate. Uropod 1 inner ramus of male without curved setae apically. Uropod 3 peduncle with seven strong distal setae with accessory setae, ramus with 10 cuspidate setae with accessory setae. Telson longer than wider, apically rounded, with two simple setae and two small cuspidate setae with accessory setae on distal margin. Sternal gills on ventral surface of pereonites 2 to 7.	en	Limberger, Marcio, Castiglioni, Daniela Da Silva, Graichen, Daniel Ângelo Sganzerla (2021): A new species of freshwater amphipod (Crustacea, Peracarida, Hyalellidae) from Southern Brazil. Zootaxa 5026 (2): 182-200, DOI: https://doi.org/10.11646/zootaxa.5026.2.2
