It is the most common sea cucumber in New Zealand. They appear mottled grey-brown to black in colour and have small soft spikes along its length. They ingest sediment from which food is extracted and faecal coils (piles of sand) are deposited. Areas of the otago harbour such as Wellers rock have great numbers of sea cucumbers and their faecal coils can be seen covering great areas.
Grow up to 150-200mm in length.
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