May 10, 2002
From: Marli Wakeling
firstname.lastname@example.orgWakeling, M., 2002 (May 10) Re: Tritonia lineata from Scotland. [Message in] Sea Slug Forum. Australian Museum, Sydney. Available from http://www.seaslugforum.net/find/6936
I had a quick flick through the literature and am surprised no one seems to have made the comparison. May be because they are oceans apart no one has thought it very relevant. They certainly have similarities in colour but in T. lineata there is no white line edging the foot, and the white marking on the mantle are restricted to the edge of the mantle and a pair of inner lines which run out to each of the gills. In T. festiva there is a white edge to the foot and the mantle, and there a many more white markings on the mantle in the form of curves, rings, streaks and spots etc.
T. lineata also differs in having only 4 tentacles on the oral veil while T. festiva has up to 10 smaller tentacles. The egg ribbon also seems different with a simple spiral in T. lineata and a folded spiral in T. festiva. As far as anatomical details go I don't think there is enough information available to make a good comparison.