Echiodon drummondii, sometimes called Drummond's echiodon or Drummond's pearlfish,[3] and in Ireland simply called the pearlfish,[4] is a species of fish in the family Carapidae (pearlfish).[5][6]
Echiodon drummondii is reddish in colour with a silvery abdomen, operculum and iris and dark markings on the head.[8] It has an eel-like body, up to 30 cm (1 ft) in length, making it among the largest of the family.[9] Its eyes are large, and lateral line is very faint.
Echiodon drummondii can be free-living and feeds on small invertebrates, fish and bottom-dwellers.[8] It is also known to live inside sea cucumbers; the cucumber opens its anus to breathe in, and the pearlfish swims in.[11][4]Eggs have been discovered in the seabed off County Kerry.[12]
^Nelson, Joseph S.; Grande, Terry C.; Wilson, Mark V. H. (March 16, 2016). Fishes of the World. John Wiley & Sons. ISBN9781119220817 – via Google Books.