Myriapoda

Myriapoda is a subphylum of arthropods containing over 13,000 species, most of which are millipedes and centipedes. They are characterized by having many legs, although the exact number varies between species. Myriapods are found in almost all types of terrestrial habitats, and are most abundant in moist forests.

Characteristics

Myriapods are known for their multiple pairs of legs, with most species having anywhere from 30 to 400 individual legs. They have a single pair of antennae and simple eyes. The body is divided into a head, thorax, and abdomen. The head contains the mouthparts and sensory organs, while the thorax and abdomen contain the legs and reproductive organs, respectively.

Classification

The Myriapoda is divided into four classes: Chilopoda (centipedes), Diplopoda (millipedes), Pauropoda, and Symphyla. Each class has its own unique characteristics and number of species.

Chilopoda

The Chilopoda, or centipedes, are fast, carnivorous myriapods that have one pair of legs per body segment. They have a venomous bite which they use to kill their prey.

Diplopoda

The Diplopoda, or millipedes, are slower and feed on decaying plant matter. They have two pairs of legs per body segment and are known for their ability to produce noxious chemicals as a defense mechanism.

Pauropoda

The Pauropoda are small, soil-dwelling myriapods that feed on decaying plant matter. They have 9-11 pairs of legs and are less well-known than the other classes.

Symphyla

The Symphyla are also small, soil-dwelling myriapods, but they have 12 pairs of legs and are more closely related to the centipedes.

Ecology and behavior

Myriapods are found in almost all terrestrial habitats, but are most abundant in moist forests. They play important roles in the ecosystem by helping to break down decaying plant matter and serving as prey for a variety of animals.

See also

• Arthropod
• Centipede
• Millipede

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