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The mites form with the ticks the order Acarina, and are distinguished by the fact that the abdomen is amalgamated with the cephalothorax to form a single mass.

Mite

The mites form with the ticks the order Acarina, and are distinguished by the fact that the abdomen…

The mites form with the ticks the order Acarina, and are distinguished by the fact that the abdomen is amalgamated with the cephalothorax to form a single mass.

Mite

The mites form with the ticks the order Acarina, and are distinguished by the fact that the abdomen…

Scorpions are characterized by having a distinctly segmented abdomen, which passes into the cephalothorax, without any well-marked line of boundary.

Scorpion

Scorpions are characterized by having a distinctly segmented abdomen, which passes into the cephalothorax,…

Spiders are distinct from insects by having four pairs of legs.

Spider

Spiders are distinct from insects by having four pairs of legs.

The sea spiders are inhabitants of the sea, and they are very often referred to as crustaceans.

Sea-Spider

The sea spiders are inhabitants of the sea, and they are very often referred to as crustaceans.