Fig. 3 in Dermal lip protuberances associated with aquatic surface respiration in juveniles of the piscivorous characid Salminus brasiliensis (Actinopterygii: Characidae)

Fig. 3. An individual of S. brasiliensis exhibiting the lip extension (left), and another individual showing typical lip morphology (rigth). Both fishes show a similar mouth opening. Protuberances can be seen in both jaws covering the tooth rows, which are evident in the individual with typical lip morphology. Scale bar = 1 cm.