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Nudibranch ID

Posted: Sat Mar 26, 2016 9:53 pm
by Magoi
My wife & I did a dive this afternoon at Redondo and found a nudi that is new to us. I think I identified it from Behren's book as a Ridge-tailed Dorid (diaphorodoris lirulatocauda). Can anyone confirm?
Ridge-tailed Dorid 1.jpg
Ridge-tailed Dorid 2.jpg
I also want to confirm the ID of this guy, who I think is a Pearly Nudibranch (Flabellina japonica)
Pearly Nudibranch.jpg

Re: Nudibranch ID

Posted: Sun Mar 27, 2016 1:49 am
by mpenders
My initial guesses** put the first one as a small/young Barnacle Eating Dorid, Onchidoris bilamellata, and the second one as a Shaggy Mouse, Aeolidia papillosa.



** meaning I'm too lazy to do much research, and these are the critters I'm familiar with

Re: Nudibranch ID

Posted: Sun Mar 27, 2016 10:05 am
by Magoi
I agree with the shaggy mouse . The photos in my books do not show two rows, which is what led me astray. Behrens describes the ridge tail as having unusually long antennae and distinct white spots which matches this photo.

Re: Nudibranch ID

Posted: Mon Mar 28, 2016 9:18 am
by dwashbur
Agreed about the first one, Onchidoris bilamellata.

Re: Nudibranch ID

Posted: Mon Mar 28, 2016 10:26 am
by Jan K
Consider another possibility for the first one :
Image

Re: Nudibranch ID

Posted: Mon Mar 28, 2016 2:53 pm
by Grateful Diver
I think Jan might have it.

Definitely not a barnacle-eating nudi ... they have more rounded papillae ...

Image

... Bob (Grateful Diver)

Re: Nudibranch ID

Posted: Mon Mar 28, 2016 3:55 pm
by mpenders
Grateful Diver wrote:I think Jan might have it.
Agreed.

Nice find!

Re: Nudibranch ID

Posted: Mon Mar 28, 2016 10:10 pm
by Magoi
Thanks Jan. That looks right.