http://www.pictonb.freeserve.co.uk/nudibranchs/dotmac.html
http://www.scottishnudibranchs.co.uk/doto-maculata.html
http://www.seaslugforum.net/factsheet.cfm?base=dotomacu
http://www.habitas.org.uk/marinelife/species.asp?item=W12830