General Description

Body very slender, about 10 times as long as wide, dorsoventrally flattened, dorsal surface smooth. Head as long as wide, rostrum poorly defined, not projecting as far as anterolateral lobes. First body segment (pereonite 1) fused to head; mouthparts asymmetrical; pleon without sutures visible dorsally, apex sharply tapering. Pleotelson elongate and acute. Up to 5 cm long.


Crabyzos longicaudatus is commonly encountered in samples from seagrass beds and is as brilliant green as the plants with which it lives. The species belongs to one of the few families of herbivorous isopods.


Southern Australia.


Seagrass beds, to depth of 20 m.

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