The photos on these pages were taken on nine separate trips to Bali, Indonesia: 31 October to 11 November 2012, 25 April to 8 May 2013, 7 to 17 June 2014, 1 to 12 November 2014, 1-10 November 2015, 16-25 October 2017, 26 October to 4 November 2018, 26 October to 7 November 2019 and 28 October to 14 November 2022. The trips included dives at various spots around the northern and eastern sides of Bali: at Gilimanuk ("Secret Bay"), Menjangan Island, Bayu and the Pemuteran Jetty in the northwest; closer to the middle of the north side at Puri Jati; on the northeast side in the area around Tulamben and Amed; and Padangbai (the Blue Lagoon) over on the east shore. Most time on most trips was spent around Tulamben, although in 2017 we could not get there at all due to the rumbling of the nearby Mt. Agung volcano. As the number of photos and species suggest, Bali is a rich area for opisthobranch mollusks and all other marine life. It has been interesting to observe how the populations change from one year to the next. Species common on one trip may be absent or nearly so in the same places a few months later, or vice versa.
Animals were not collected and no measuring device was used. Measurements are all eyeball estimates, usually of the largest specimen we observed.
Click a thumbnail below to see more images of that species or press the browser Back button to return to the previous page.
Korshunova et al (2017) recently split Flabellina into a number of different genera. Generic differences are often somewhat subjective: Where exactly do you draw the line? The recent book by Gosliner et al (2018) retains Flabellina for most of the species, so there clearly remains some difference of opinion about where these generic lines should be drawn.
Like the Flabellinidae, this family has undergone considerable recent revision. In particular, the species in the genus Tenellia below were recently considered Cuthona by some and Trinchesia by others. WORMS currently lists most of them as Trinchesia, but the recent book by Gosliner et al (2018) uses Tenellia for most of the species, so there is still disagreement over where exactly they belong. We are leaving them mostly as Tenellia until the situation clears up somewhat.
Arminidae
Tritoniidae
Not knowing just how variable some of these Marionia species are, we have probably been too generous in splitting them up. Several will likely turn out to be variations of others.
Scyllaeidae
Embletoniidae
Aglajidae
|
Press the browser Back button to return to the previous page.
