Integrative taxonomy reveals a new species of the Hoplias malabaricus species complex (Teleostei: Erythrinidae)

J.J. ROSSO; M. GONZALEZ-CASTRO; SERGIO BOGAN; YAMILA P. CARDOSO; E. MABRAGAÑA; M. DELPIANI; JUAN M. DÍAZ DE ASTARLOA

ICHTHYOLOGICAL EXPLORATION OF FRESHWATERS

VERLAG DR FRIEDRICH PFEIL

Año: 2018

0936-9902

By means of an integrative taxonomic approach, a new species of the H. malabaricus group from the Río de La Plata basin is described. Hoplias argentinensis, new species, is characterized by: 17-19 predorsal scales, 42-43 ver- tebrae, 20 scales around caudal peduncle, no distinctive brown bands in lower jaw, last series of vertical scales on caudal fin nearly straight, 41-44 lateral-line scales and snout width (18.4-24.9 % of SL). Hoplias argentinensis is discriminated from all other species of the H. malabaricus group by means of traditional characters, landmarks- based morphometrics and genetics. A key to species of the Hoplias malabaricus group is provided.