Synbranchus marmoratus group

dos Santos, Sergio Alexandre & de Britto, Marcelo Ribeiro, 2021, The ichthyofauna of a poorly known area in the middle-southern Espinhaco mountain range, state of Minas Gerais, Brazil: diagnostics and identification keys, ZooKeys 1054, pp. 25-66 : 25

Synbranchus marmoratus group

Fig. 5B

Distribution.

Upper rio Santo Antônio, rio Doce basin.

Diagnosis.

Synbranchus marmoratus group is diagnosed by having dark-brown color on dorsal region of body and light brown below the midline and head; many rounded dark spots or irregularly shaped dark spots throughout the whole body; dark stripe composed by fusion of many dark spots in ventrolateral region of head.

Remarks.

Albeit the true S. marmoratus have a wide distribution in the Neotropical region, in this study we refer the species as S. marmoratus group, since the taxonomic status of S. marmoratus may represent more than one species. A taxonomic review of S. marmoratus from Central and South America is needed to clarify this problematic issue.

Figures

Figure 5. Fish species from the middle-southern Espinhaco mountain range, Minas Gerais state, Brazil A Gymnotiformes (Gymnotus carapo group, MNRJ 48407, 130.5 mm SL) B Synbranchiformes (Synbranchus marmoratus group, MNRJ 48448, 116.8 mm SL) C Cyprinodontiformes (Phalloceros uai, MNRJ 48408, 32.0 mm (female - above) and 16.3 mm (male - below) SL) D Cichliformes (Australoheros mattosi, MNRJ 48454, 54.6 mm SL E Cichliformes (Australoheros sp., MNRJ 46859, 39.3 mm SL).