http://www.seaslugforum.net/showall/dondparg
http://slugsite.us/bow/nudwk201.htm
http://slugsite.us/bow/dc_2.htm
https://www.inaturalist.org/taxa/1186473-Dondice-parguerensis
http://www.medslugs.de/E/Atl-W/Dondice_parguerensis/Selection.htm