New Zealand Seashore
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DSC_2122 Cat worm (Aglaophamus macroura) a very active burrowing worm, throwing its body into regular waves as it swims, or moves through muddy sand in search of prey. A member of the family Nephtyidae, which all move in this characteristic 'rippling' way. It is probably the most widespread sand burrower of the intertidal zone. Up to 60mm long. Warrington *