Euryochus thysanos Pereira & Reis, 2017

Fig. 4F

Distribution.

Coastal rivers in Eastern Brazil, from the rio Itapemirim, and including the larger basins of the rio Doce and Mucuri, in Espirito Santo and Minas Gerais states, to the rio Frades, state of Bahia.

Diagnosis.

Euryochus thysanos is diagnosed by having rounded and short inferior lip, leaving a large naked area in the ventral portion of head; inferior lip with barbel developed; 30-35 bicuspidate teeth in the premaxillary and dentary bones; absence of hypertrophied odontodes.