Fig. 3. Series of lungfish midlines for one cycle from the same individual with viscosities and swimming speeds of (A) 1 cSt, 0.20 L s^–1, (B) 10 cSt, 0.23 L s^–1, (C) 100 cSt, 0.14 L s^–1 and (D) 1000 cSt, 0.15 L s^–1, respectively. Note that lateral displacement and lateral bending increased most conspicuously anteriorly with increased viscosity.