Deuterodon aff. taeniatus (Jenyns, 1842)

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

Deuterodon aff. taeniatus

Fig. 3J

Distribution.

Upper rio Santo Antônio, rio Doce basin.

Diagnosis.

Deuterodon aff. taeniatus differs from its congeners of the study area by the presence of a space in the symphysis of dentary; infraorbital 3 with high concentration of chromatophores; usually verticalized humeral spot with a lower comma-shaped feature, reaching 2.5 scales below the lateral line; 32-39 perforated scales in the lateral line; iii-v+17-24 anal fin rays.

Remarks.

Deuterodon taeniatus is described from the rio São João and rio Macaé basins (rio Paraíba do Sul basin), in state of Rio de Janeiro, Brazil. The presence of the species in different basins has been notified in literature ( Vieira 2006; Alves and Pompeu 2010) and sometimes with imprecise taxonomy (e.g., Alves et al. 2008; Vieira et al. 2015). In this study, A. taeniatus was recorded only for the rio Doce basin. However, it was observed that specimens from the rio Doce basin have lower body depth when compared to the morphotypes from rio Paraíba do Sul basin.

Figures

Figure 3. Characiformes species from the middle-southern Espinhaco mountain range, Minas Gerais state, Brazil A Hypomasticus thayeri, MNRJ 43577, 91.1 mm SL B Characidium fasciatum, MNRJ 48435, 68.8 mm SL C Characidium sp. A, MNRJ 46861, 65.5 mm SL D Characidium sp. B, MNRJ 48460, 56.2 mm SL E Characidium sp. C, MNRJ 46911, 42.3 mm SL F Astyanax lacustris, MNRJ 48521, 52.6 mm SL G Deuterodon giton, MNRJ 48129, 47.5 mm SL H Deuterodon intermedius, MNRJ 47840, 42.1 mm SL I Deuterodon pedri, MNRJ 48381, 65.5 mm SL J Deuterodon aff. taeniatus, MNRJ 45824, 55.5 mm SL K Hasemania nana, MNRJ 48440, 28.4 mm SL L Hasemania sp., MNRJ 48416, 25.1 mm SL M Oligosarcus argenteus, MNRJ 48393, 82.6 mm SL N Piabina argentea, MZUSP 110200, 44.2 mm SL O Psalidodon rivularis, MNRJ 48516, 46.8 mm SL P Psalidodon sp. MNRJ 48128, 59.4 mm SL Q Hoplias intermedius MZUSP 54696, 40.4 mm SL.