The Scyphophori, Haplomi, and Xenomi 197 
they may be observed feeding for long periods. They are 
almost invariably found in running water well out in the stream, 
or at least where the current is strongest and where floating 
matter is most abundant, for it is upon floating matter that 
they seem chiefly to depend. They are not known to jump out 
of the water to catch insects flying in the air or resting upon 
vegetation above the water surface, nor do they seem to feed 
to any ‘extent upon all small crustaceans or other portions of 
the plankton beneath the surface. 
“When alarmed—and they are wary and very easily fright- 
ened—they escape by skipping or jumping over the water, 
Ne : e 
aes 
an PSE 
ES 
Fic. 154.—Everglade Minnow, Jordanella floride Goode & Bean. Everglades 
of Florida. 
2 or 3 feet ata skip. They rise entirely out of the water, and at 
a considerable angle, the head pointing upward. In descending 
the tail strikes the water first and apparently by a sculling 
motion new impetus is acquired for another leap. This skipping 
may continue until the school is widely scattered. When a 
school has become scattered, and after the cause of their fright 
has disappeared, the individuals soon rejoin each other. First 
two will join each other and one by one the others will join them 
until the whole school is together again. Rarely do they at- 
tempt to dive or get beneath the surface; when they do they 
have great difficulty in keeping under and soon come to the 
surface again.” : 
