Photo by A. S. Rudland & Sons.
SWORD-FISH.
The huge back-fin is said to be often used as a sail when the fish is floating near the surface of the water.
CHAPTER IV.
HAIR-TAILS, HORSE-MACKERELS, SEA-BATS, DORIES, MACKERELS, SUCKING-FISHES, WEAVERS, FROG-FISHES, ANGLER-FISHES, BULL-HEADS, AND GURNARDS.
BY W. P. PYCRAFT, A.L.S., F.Z.S.
Photo by Percy Ashenden.] [Cape Town.
SNOEK.