Shane Siers Sorry, I thought the original post text would be shared, too...this was filmed in Apra Harbor, Guam, at ~20m, found on a beer can on the sandy bottom. This one was ~25mm long.
Chad Ordelheide Was I there Shane, Was I there :) Loooking Good!!
Shane Siers Not for this one, I don't think... You getting wet at all, Chad?
Kristin AndersonHypselodoris infucata nom nom nom | Lembeh
Daniel Messom Wow! Nice!
Roy Arthur David Lontoh The one on the left, is it not Hyp. kanga?
Erwin Koehler according to the author of it, Bill Rudman (at the SSF) is the left one a variant of H. kanga, it is in IPN as H. sp. 2 at page 264
Gary Cobb H. kanga has a series of whitish to yellow marking on the outer axis of the gills just like the animal on the left has.
Kristin Anderson So much for my memory! I'll change it when I can edit :) thanks for the catch.
Gary Cobb Glad to help! This species is easily confused with similar looking species.
Kristin Anderson I knew there were a couple similar but it was the only name I could remember and I was too relaxed to look it up! Sorry, everyone, I'll be more careful in future!
Gary Cobb Ahh throw caution to the wind! Be brave!
Gary Cobb By the way this is an excellent shot showing the extended buccal mass!
Kristin Anderson turns out I can't edit the info on this pic for some reason. We all know it's H. kanga so ignore the name in my original post LOL
Sonja OomsHypselodoris infucata trying to get higher up in life
Canon PowerShot S90 - 1 x Sea & Sea YS-110a strobe - f/3.5 - 1/60 - ISO 100
Epoque DML-2 Conversion lens, 2X magnification factor
Chandy de Wit Came across these three on a dive today, wondering if there is any possible explanation?
Rahul Meh-unpronouncableHypselodoris infucata and what are the other two?
Chandy de Wit More interested in the behaviour? The others are Mexichromis macropus...
Rahul Meh-unpronouncable Initial guess would be communal feeding, though a simple explanation, there are so many nudis with such specific food sources that this behaviour would be interesting to see food preferance choicing over interspecies behavioural patterns.
Chandy de Wit Perfect explanation, though not sure the contact would be necessary since there was quite a large patch of the substance they were on?
Rahul Meh-unpronouncable Perhaps slime trails would answer that bit as nudi that prey on other nudis use slime trails to lead them to their prey, so perhaps though it isnt a predator prey interaction, the hypselodoris is still gaining some information from the slime trail of the others. That this is just a guess, it may explain the close proximity.
Chandy de Wit Makes sense :) so many questions with Nudibranchs :)
Gary Cobb Groupings happen with the same food source. The Hypselodoris is to be questioned! If the animal is fm Australian waters it won't be H. Infucata it would be H. obscura. And if the gills are triangular it would be H. kanga
Chris Cunnold Hi all, what 's the chance that the Hypselodoris is H.saintvincentius? As this is from West Australia.
Chandy de Wit Sorry it's from SW Western Australia, have been calling it Hypselodoris Saintvincentius ??? Though apparently that is questionable?
Chris Cunnold Really? I'm interested in this development, do you know where to point me for the info? I found this http://web.archive.org/web/20130123090304/http://www.seaslugforum.net/find/hypssain
Chandy de Wit I've been calling it Hyp. saintvincentius forever but it's in "Nudibranchs of the World"....
Chandy de Wit And the pic in Neville Coleman's Encyclopaedia doesn't look like it has any yellow spots, so I'm confused......
Sue Myburgh Good to see they are all coming back.
Gary Cobb Yes after a little closer look you may be right the left animal is Hypselodoris saintvincentius the body and rhinophores match, it would be mic to see the gills. Good catch Chris!
Chandy de Wit
Chandy de WitHypselodoris saintvincentius, funny, wasn't woundering this at all at the beginning of this post but when Rahul said infucata I found that I have three publications that are saying the same......
Rahul Meh-unpronouncable The degree of difference is often so minute, its hard to see where one species stops and another begins
Gary Cobb For one thing Hypselodoris saintvincentius has red gills with white specks.
Gary Cobb Here are the gill differences between 3 species that look very similar. Hypselodoris infucata has gills with an outer edge has that has one red line, H. kanga has gills are triangular in cross-section (the outer edge has two red lines) and H. saintvincentius has gills similar to H. infucata but with white specks.
Chris Cunnold That's great Gary , a definitive way to ID them, I'm going to have to go back over my images to check.
Gary CobbHypselodoris obscura has the single outer red line too BUT is only found on the east coast of Australia (endemic)
Chandy de Wit Thanks Gary Cobb, pretty sure I've only ever seen saintvincentius, the markings and colours of the others also seem quite distinctively different.
Shane Siers Reading order: Chromodoris fidelis, Chromodoris hintuanensis, Nembrotha lineolata, Glossodoris atromarginata, Chromodoris cf lochi, Flabellina rubrolineata, Hypselodoris infucata, Gymnodoris aurita and Ceratosoma tenue! All beauties, Louis! I'll be back in Anilao in June, can't wait.
Louis Pang so informative. Shane Siers Thanks.
Louis Pang This photo is published on Asia Geographic Magaine No 98. Issue 5/2013 ^_^ http://shop.asiangeographic.org/magazine-single-issues/160-asian-geographic-no-98-issue-52013.html