ANGLER FISHES GILL. 



613 



the male. But how the eggs are fertilized remains to be made known. 

 For further detailed description of nest and eggs the memoir of 

 Mobius (1894) may be consulted. 



Only the early stages of development within the egg have been 

 observed. The later history with known means of observing and 

 rearing the embr3^os and the history of the transformations the }■ oung 

 into the familiar adult will doubtless be as remarkable as that of the 

 anffler. 



Fiu. 47. — Part of supposed nest of Pteropbryne magnified twice. After Mobius. 



Mobius, like his predecessors, assumed that the eggs were those of 

 Pterophr'yiie and, finding that those in the ovary of one he ex- 

 amined were without filaments and smaller than those in the nest, 

 postulated that probably they became provided with the polar fila- 

 ments during passage through the oviducts." 



Sir John Murray, in the Narrative of the Voyage of H. M. S. 

 Challenger (Vol. I, p. 13G), also assuming that the maker was the 

 Antennariid, declared that the nest " is composed of branches of the 

 gulf weed bound together by means of long sticky gelatinous strings 

 formed by the fish for this purpose, and is filled with eggs." 



''Beide Ovarien munden in einen gemeinschaftlichen kurzen geriiumiiren 

 Eileiter, in welchem wahrscheinlich die Substanz der Nestfiiden seceruirt 

 wird. Op. cit,, p. 8. 



