PLATE 2 



EXPLANATION OF FIGURES 



55 Necturus maculosus. 'Nest' of eggs of Nectunis. The stone to which the 

 eggs are attached has been removed from the water and set on edge on the wharf ; 

 it is about IG inches in diameter. The embryos are in an advanced stage of devel- 

 opment. 



56 Necturus maculosus. Eggs and envelopes shown in their natural position 

 in the water, attached to a piece of board; natural size. Kroni a drawing by 

 Professor Bashford Dean. 



15G 



