Figure 3. Sea floor photograph showing large unidentified fish (5 to 6 feet 
long). Note the large dorsal fin. Some luminescent organisms 
are present. (Courtesy of Carl Shipek of the U. S. Navy Electronics Laboratory.) 
Figure 4, Photomicrograph of colonial (encrusting) bryozoa, deep-sea glass 
sponge, Foraminifera, and worm tubes on a rock surface (magnified). 
