Diplopoda
Diplopoda (pronunciation: /dɪˈplɒpədə/), commonly known as Millipedes, is a class of arthropods that are characterized by their elongated bodies and numerous leg pairs. The term "Diplopoda" is derived from the Greek words "diplo-", meaning double, and "-poda", meaning feet, referring to the two pairs of legs on most of their body segments.
Anatomy
Diplopoda have a cylindrical body, with a hard exoskeleton made of chitin. They have two pairs of legs per body segment, unlike their close relatives, the centipedes, which have only one pair. The head of a millipede has a pair of antennae and simple eyes, known as ocelli.
Behavior
Millipedes are generally slow-moving detritivores, feeding on decaying leaves and other dead plant matter. Some species can secrete a variety of defensive chemicals from glands located on their bodies, which can be harmful or irritating to predators.
Classification
Diplopoda is divided into sixteen orders, including Polydesmida, Spirostreptida, and Julida, among others. These orders are further divided into families, genera, and species.
Habitat and Distribution
Millipedes are found worldwide, inhabiting a diverse range of environments from tropical rainforests to deserts. They are most abundant in moist forests, where they play a crucial role in breaking down organic matter.
Related Terms
- Arthropoda: The phylum to which millipedes belong.
- Chilopoda: The class of arthropods closely related to millipedes, commonly known as centipedes.
- Detritivore: An organism that feeds on decaying organic matter.
- Chitin: A fibrous substance consisting of polysaccharides, which is the major constituent in the exoskeleton of arthropods.
- Ocellus: A simple eye or eyespot, found in many types of invertebrates.
- Polydesmida, Spirostreptida, Julida: Orders within the class Diplopoda.
External links
- Medical encyclopedia article on Diplopoda
- Wikipedia's article - Diplopoda
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