Icosapods (Phylum Lithoderma)
The icosapods are a Subphylum of lithoderms. They are distinguished by their ten pairs of legs. They are found in almost all habitats, and range in size from 5 mm to 50 cm. There are an estimated 95,000 to 125,000 named species.
Icosapods have three tagmata. An unsegmented "head" which supports from four to eight compound eyes and several specialized appendages for feeding, sensory reception, defense, and locomotion. The thorax conisists of five jointed segments, with two legs per segment. The abdomen consists of a single large segment with four pairs of legs.
Many icosapods are noted as being well suited for human consumption and aquaculture.
A typical icosapod: