Nemuroglanis

Ribeiro, Frank Raynner V., Pedroza, Wellington S. & Rapp, Lúcia H., 2011, A new species of Nemuroglanis (Siluriformes: Heptapteridae) from the rio Guariba, rio Madeira basin, Brazil, Zootaxa 2799, pp. 41-48 : 45

Key to the species of Nemuroglanis

1a. Caudal fin forked; ventral caudal-fin lobe with five or six branched rays.......................................... 2

1b. Caudal fin lanceolate; ventral caudal-fin lobe with three or four branched rays..................................... 3

2a. Lateral line reaching middle portion of the adipose-fin base, with 18 to 33 sensory pores; seven, rarely six, pectoral-fin rays.................................................................................. N. furcatus , new species

2b. Lateral line reaching slightly beyond dorsal-fin base origin, with 10 to 15 sensory pores; six, rarely seven, pectoral-fin rays............................................................................................... N. mariae

3a. Ten or eleven anal-fin rays................................................................. N. pauciradiatus

3b. Thirteen to fifteen anal-fin rays................................................................ N. lanceolatus