Identify This

Tell or show us what marine life fascinates you underwater and why. What's your favourite marine critter?

Identify This

Postby tara » Mon Apr 26, 2010 9:05 am

help please?
can anyone please help me with the names of these creatures?
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Re: Identify This

Postby justsimon » Mon Apr 26, 2010 1:37 pm

Butterfly chiton (Cryptoconchus porosus)
Eleven armed starfish (Coscinasterias muricata)
An ascidian, probably Asterocarpa coerulea.

Mathesons?
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Re: Identify This

Postby tara » Mon Apr 26, 2010 1:39 pm

... i was waiting for you to reply :)

yes, from Mathesons. Some photographs that my student took but i wasnt 100% sure of the last one and thought i had better check the rest!
thank you Simon.
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Re: Identify This

Postby justsimon » Mon Apr 26, 2010 1:40 pm

:D
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Re: Identify This

Postby binklebonk » Mon Apr 26, 2010 1:44 pm

justsimon wrote:Eleven armed starfish (Coscinasterias muricata)


I only count 9 maybe 10 arms, difficult to see if any are hiding under others.... Should it have 11 or was it discovered by someone of questionable numerical ability?
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Re: Identify This

Postby justsimon » Mon Apr 26, 2010 4:25 pm

They can regrow from a single arm as long as they have a bit of the central bit so the number of arms can be a bit variable. One can quite often see stars with a few big arms and a heap of tiny new ones.

Or it's not C. muricata at all. :D But I think I'm correct.
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Re: Identify This

Postby tara » Sun May 30, 2010 9:28 pm

okay - next one guys .... Ti Point today

woolly sea hare??

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Re: Identify This

Postby justsimon » Sun May 30, 2010 10:15 pm

Awww. I've been looking for those. Bursatella leachii.
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Re: Identify This

Postby tara » Sun May 30, 2010 10:17 pm

look no further my friend! head out of ti point to the rocks on the left.
the sand is covered in them and they are reasonably large.
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Re: Identify This

Postby Ali Perkins » Mon May 31, 2010 9:47 am

I had this comment from Dr Richard Willan about this species recently:

"This is a very well camouflaged sea hare. At this time of year they are doing the salmon thing – that is reproducing and dying en masse."

Want to go for a dive this week to find them Simon? I'd be dead keen to see them and get some pics.
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Re: Identify This

Postby justsimon » Mon May 31, 2010 5:13 pm

Want to go for a dive this week to find them Simon? I'd be dead keen to see them and get some pics.


I could prob get there Sat but I'm wrangling small beasties during the week.

Tara: did you go from the wharf or are you talking about actual Ti point in a boat? It's a bit of a hike with a tank and 10kg of camera gear to the point. :D
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Re: Identify This

Postby tara » Mon May 31, 2010 5:31 pm

we did take a boat around there.

you know where the track/trail leads to around the corner?
the site is along that stretch of rocks that heads out from there .... mainly in the bay on the right if omaha is also on your right.
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Re: Identify This

Postby Ali Perkins » Tue Jun 01, 2010 9:11 pm

justsimon wrote:I could prob get there Sat but I'm wrangling small beasties during the week.


I'm at the Cowshed this weekend. And my week just went to custard... had to spend today cleaning up my flooded house. Damn rain!

But soon, before they all die off!
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Re: Identify This

Postby justsimon » Wed Jun 02, 2010 11:51 am

And my week just went to custard... had to spend today cleaning up my flooded house. Damn rain!


Ah, what bad luck. At least you'll have got your kayak floating. :D
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