http://www.pictonb.freeserve.co.uk/nudibranchs/dotpin.html
http://www.bio.bris.ac.uk/teaching/units/b11000/nudi11.htm
http://www.medslugs.de/E/Atl-NE/Doto_pinnatifida.htm
http://www.seaslugforum.net/factsheet.cfm?base=dotopinn
http://www.scottishnudibranchs.co.uk/doto-pinnatifida.html
http://www.habitas.org.uk/marinelife/species.asp?item=W12880