Peces Criollos - Freshwater Fishes of Argentina Peces Criollos - Freshwater Fishes of Argentina
English  Deutsch  Español 

Hoplias mbigua sp.nov. from Argentina

Hoplias mbigua
Hoplias mbigua, holotype (photo from publication)

new species from Argentina:
Hoplias mbigua Azpelicueta, Benítez, Aichino & Mendez, 2015

published in:
Azpelicueta, M., M.F. Benítez, D.R. Aichino & D.C.M. Mendez (2015):
A new species of the genus Hoplias (Characiformes, Erythrinidae), a tararira from the lower Paraná River, in Misiones, Argentina.
Acta zoológica lilloana 59 (1-2): 71-82

abstract (from publication):
We describe Hoplias mbigua, a new species of the genus from the lower Paraná, in Misiones, with tooth-bearing plates on dorsal surface of basihyal and basibranchials and medial margins of contralateral dentaries converging towards the mandibular symphysis in ventral view, characters that permit to include the species in the H. malabaricus group. The presence of five brown bands transversely placed on lower jaw distinguishes the new species from its congeners, excluding H. microlepis (vs. lower jaw straight or with small black or brown dots uniformly distributed). The number of circunpeduncular scales in H. mbigua is 20 whereas H. teres and H. malabaricus have 18 circunpeduncular scales and H. microlepis 22-24 and 12-16 gill rakers on first epibranchial (vs. about 9). Hoplias mbigua has convex dorsal profile between head and dorsal fin whereas H. teres has straight dorsal profile. Hoplias mbigua has a large supraopercle, with its anterior margin contacting the infraorbitals 5 and 6 whereas H. cf. malabaricus has a short supraopercle, with an anterior margin scarcely extended before anterior opercular margin. Hoplias mbigua has a large toothplate on basihyal and basibranchials instead of two lines of tooth-plates at sides of bones in H. cf. malabaricus.

Azpelicueta et al. (2015): Hoplias mbigua sp.nov.
Odontesthes argentinensis - first record from freshwaters in Argentina

Oligosarcus pintoi - first record from Argentina

Moenkhausia bonita - first record from Paraguay

Potamoglanis johnsoni comb.nov. from Trichomycterus

Schizodon altoparanae - first record from Paraguay

Pinirampus argentina comb.nov. from Megalonema

Farlowella azpelicuetae sp.nov. from Argentina

Jenynsia sulfurica sp.nov. from Argentina

Zungaro jahu - Paulicea gigantea is a jr. synonym

CLOFFAR - update 6

Steindachnerina nigrotaenia - resurrected from synonymy of S. brevipinna

Steindachnerina insculpta - not a species from Argentina

Hypostomus cordovae revalidated from synonymy with H. paranensis

Hypostomus spiniger revalidated from synonymy with H. commersoni

Moenkhausia bonita - first record from Argentina

 Powered by ReadSys