1906.] 



AUSTRALIAN LUNG-FISH. 



175 



less active and sinks to the bottom, a movement wliicli suggests 

 very closely one often observed in Nectnrus. The paired fins extend 



Text-fi^. 54. 



Ceratodus forsteri in various positions of rest and movement. 



straight out at the sides of the body, the pectorals moving lazily, 

 as thoua;h to balance the fish during its descent. A somewhat 



