. Goldfish varieties and tropical aquarium fishes; a complete guide to aquaria and related subjects. Aquariums; Goldfish. 144 FISH ENEMIES which it sucks enough blood to kill its victim and then wantonly goes after another. In this way a single individual may kill an entire hatching of fish over night. This larva can usually be recognized by its spindle-shaped body; flat, strong head; pale translucent brown color and a steady progress through the water, coming to the surface frequently to breathe a moment through the rear end. Although growing to a length of 2yi inches, at which time it attack
. Goldfish varieties and tropical aquarium fishes; a complete guide to aquaria and related subjects. Aquariums; Goldfish. 144 FISH ENEMIES which it sucks enough blood to kill its victim and then wantonly goes after another. In this way a single individual may kill an entire hatching of fish over night. This larva can usually be recognized by its spindle-shaped body; flat, strong head; pale translucent brown color and a steady progress through the water, coming to the surface frequently to breathe a moment through the rear end. Although growing to a length of 2yi inches, at which time it attacks larger fishes and any small aquatic animals, it is the smaller sizes with which we are principally concerned. From a length of ^ to 1 inch they are not so easily seen, but are capable of doing great mischief. Spearmouth. While not quite so common as the Water Tiger, its habits are similar and it grows to an even larger size, reaching 3 inches. The body is thicker and the mandibles are shorter. From. Fig. 135. Spearmouth (Life size) the aquarist's standpoint both these larvae could be classed as one. The Spearmouth is the larva of the large Water Scavenger Beetle (Hydrophilus). Dragon-Fly Larvae. Almost everyone who raises fish outdoors is familiar with these unpleasant individuals. There are two reasons why they are difficult to altogether avoid. When newly hatched they. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Innes, William T. (William Thornton), 1874-1969. Philadelphia, Innes
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