FIGURE 3 in Microlepidogaster negomata, a new hypoptopomatine catfish (Loricariidae: Hypoptopomatinae) from Rio São Francisco basin, southeastern Brazil

FIGURE 3. Pectoral girdle in ventral view. A) Microlepidogaster discus, DZSJRP 19493, paratype, 41.7 mm SL, male, pectoral girdle exposed only laterally, bearing few odontodes, and arrector fossa large; B) M. perforata, DZSJRP 16171, paratype, 30.6 mm SL, female, pectoral girdle almost completely exposed, bearing many odontodes along all ventral surface, and arrector fossa extending laterally halfway towards the base of the pectoral fin; C) M. arachas, DZSJRP 15808, paratype, 36.3 mm SL, male, pectoral girdle almost completely exposed, bearing many odontodes along all ventral surface, and arrector fossa restricted to midline of girdle; D) M. longicolla, DZSJRP 12453, paratype, 39.7 mm SL, pectoral girdle almost completely exposed, bearing many odontodes along all ventral surface, and arrector fossa restricted to midline of girdle; and E) M. negomata, DZSJRP 21003, paratype, 38.7 mm SL, female, pectoral girdle exposed only laterally, bearing few odontodes, and arrector fossa totally enclosed (right side) or almost totally enclosed (left side), opening restricted to the halfway point of the pectoral girdle. Arrows indicate the arrector fossa. Scale bars = 0.5 mm (new species) and 1 mm (others).