Scientific name: 
Pachycerianthus fimbriatus
Distinctive features: 
Long, slender outer tentacles surround short inner tentacles, always found in soft sediment.
Size: 
max. 14 in. high
Two sets of banded tentacles are white, brown, black or orange. The anemone secretes a tube that can extend 1m (3ft) in the mud. Favorite food item of the giant nudibranch.