Nudibranch ID

Fish & Invertebrate sightings and descriptions, hosted by resident NWDC ID expert Janna Nichols (nwscubamom).
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Magoi
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Nudibranch ID

Post 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
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mpenders
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Re: Nudibranch ID

Post 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
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Magoi
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Re: Nudibranch ID

Post 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.
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dwashbur
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Re: Nudibranch ID

Post by dwashbur »

Agreed about the first one, Onchidoris bilamellata.
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Jan K
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Re: Nudibranch ID

Post by Jan K »

Consider another possibility for the first one :
Image
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Grateful Diver
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Re: Nudibranch ID

Post by Grateful Diver »

I think Jan might have it.

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

Image

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mpenders
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Re: Nudibranch ID

Post by mpenders »

Grateful Diver wrote:I think Jan might have it.
Agreed.

Nice find!
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Magoi
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Re: Nudibranch ID

Post by Magoi »

Thanks Jan. That looks right.
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