418 
BASHFORD DEAN. 
weedy nest which at the moment they happen to touch (e.g. 
Potamogeton or bulrush rootlets, Fig. 1). The writer has seen 
a nest in which—judging from the wide difference in the 
cleavage stages—the oviposition must have taken place during 
Fic. 1.—Eggs of Amia. 
a period of about twelve hours. 
Shown as collected, attached to root of bulrush. 
x about 2. 
Another nest, on a somewhat 
warmer day, appeared to have been filled with eggs within 
about half an hour, since all cell stages were notably uniform. 
The number of eggs the writer roughly estimates as in the 
neighbourhood of a million. 
Shortly after oviposition a single male takes his position on 
the nest—whether by driving the others away or not the 
writer has been unable to determine. 
Here he remains until 
the eggs are hatched, sometimes in the nest, circling slowly 
about, sometimes in the adjoining “ runway,” as in Fig, 2, his 
