Finding Hallaxa

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MaxBottomtime

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Scuba Instructor
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Location
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We went back to the Redondo Barge in search of the tiny blob Merry found yesterday. We looked in the same area and after a minute of close scrutiny, Merry pointed at a discoloration on a rock. I took a closer look and could almost make out its shape. My macro lens got a better look at it.
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Hallaxa chani on bugula. That's my fingertip on the left.

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The visibility was down to ten feet, so while Merry worked on the Hallaxa I hovered nearby. I found a Pyrosoma atlanticum being devoured by corynactis anemones and thousands of orange cup corals.
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We saw a single sea lion and a batray as we began our ascent. While hanging at twenty feet we had a school of sardines circle us for several minutes. Once we were back at the surface, the fun really began.
A brown pelican kicked over to us, hoping we were fishing. He didn't get any bait from us, but he was very patient.
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I grabbed my camera out of the housing and before I could take the first shot, a Mola Mola had surfaced near the pelican. Two beggers and no food to give them.
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Wow that Hallaxa is super tiny. Its a wonder you and Merry even spotted him. Great Mola encounter! I've still yet to see one.
 
Oh cool, you had a mola mola sighting.

I dove off of Vet's on Sunday. I sighted a big sheep crap where the body was the size of a football not including it's legs.
 
Merry received this email from Dr. Jeff Goddard today;

Hi Merry,

Great image of a great find! Jeff Hamann in the Opisthobranch Newsletter (1981, 13(6):21) reported finding a specimen in 1980 intertidally in La Jolla, but his record never made it into the books and apparently wasn't backed by a photo or specimen - although Jeff does know his nudibranchs. In any case, I think we can safely say that yours is the most southerly documented record for this species. Two years ago I found a small specimen intertidally near Santa Barbara, and a few years ago Bruce Wight reported a specimen subtidally from San Miguel Island <http://www.seaslugforum.net/find/12709>.

Hallaxa chani specializes on the tan-colored slime sponge, Halisarca sp., small amounts of which appear to be present in the interstices of the underlying bryozoan substrate to the right of your specimen. The slug had probably grazed the sponge down as far as possible, leaving behind trace amounts.

Keep up the great work, and thanks for keeping me posted,
Jeff
 

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