Acanthochromis polyacanthus and what other 2 species ???

Acanthochromis polyacanthus and what other 2 species ???

Postby John Sampson » Thu May 20, 2010 1:36 am

Please see the bottom of this article about Acanthochromis polyacanthus:
http://australianmuseum.net.au/Spiny-Puller-Acanthochromis-polyacanthus-Bleeker-1855

It says:

"The species is unusual because it is one of only three Damselfishes in which the larvae are not planktonic but instead stay with the parents after hatching."

What are the other 2 species of Damsels which do not have planktonic larvae ????

Thanks!
JS
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Re: Acanthochromis polyacanthus and what other 2 species ???

Postby Luis A M » Thu May 20, 2010 2:45 pm

Good question,I always heard that was the only one :?
Let´s see if you get some answer there.
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Re: Acanthochromis polyacanthus and what other 2 species ???

Postby Midnight Angel » Thu May 20, 2010 5:01 pm

I have only heard of one as well.

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Re: Acanthochromis polyacanthus and what other 2 species ???

Postby John Sampson » Thu May 20, 2010 6:00 pm

One of these journal articles might shed light on the subject:

http://www.jstor.org/pss/1445439

http://www.springerlink.com/content/m6055421jmq98268/

However, I am not planning to purchase either journal article.

Speaking of Dr. R.E. Thresher (co-author of the first article listed above); I am currently reading a book I've had on my shelf for over 20 years; Reproduction in Reef Fishes http://www.amazon.com/Reproduction-Reef-Fishes-Ronald-Thresher/dp/0876668082/ref=sr_1_1?ie=UTF8&s=books&qid=1274392621&sr=1-1. While dated, it is very interesting reading and has some relevant information. It gives good overviews for each family of reef fish.

Anyhow, still hope to hear a definitive answer to my original question.

I love this forum--Thank you!
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Re: Acanthochromis polyacanthus and what other 2 species ???

Postby gpsmart » Fri May 21, 2010 12:46 am

Hi,

Further down the article it says:

The species is unusual because it is one of only three pomacentrid species that do not have planktonic larvae. The larvae of all three species stay with the parents after hatching. The other two species are the Azure Damsel, Altrichthys azurelineatus and Altrichthys curatus (no common name), a species described in 1999 by Dr Gerald R. Allen (see References).


I can't comment on the accuracy but there is at least one other fish with the common name of Azure Damsel and pictures of the two species mentioned above seem to be scarce.

Hope this helps and doesn't just add more unanswered questions.

Graham
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Re: Acanthochromis polyacanthus and what other 2 species ???

Postby aomont » Fri May 21, 2010 12:55 am

It has just been updated. It wasn't there before, look at the bottom of the page. ;)

EDIT to add link to homepage on one species with photo
http://marinelives.wordpress.com/2008/1 ... ed-damsel/

Another edit for the second
http://marinelives.wordpress.com/2008/1 ... an-damsel/
Anderson

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Re: Acanthochromis polyacanthus and what other 2 species ???

Postby John Sampson » Fri May 21, 2010 1:17 am

Cool, the Collection Manager of Ichthyology answered my question.

Thanks for finding the pictures of these 2 species!
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Re: Acanthochromis polyacanthus and what other 2 species ???

Postby Luis A M » Fri May 21, 2010 1:50 pm

Thanks for this info,something new to many of us 8)
These two spp has the same body profile of Amblyglyphidodon,genus where one of them belonged.Interestingly A.aureus has proven to produce large larvae,easy to raise in captivity. :wink:
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Re: Acanthochromis polyacanthus and what other 2 species ???

Postby John Sampson » Sat May 22, 2010 12:55 am

Luis A M wrote:Thanks for this info,something new to many of us 8)
These two spp has the same body profile of Amblyglyphidodon,genus where one of them belonged.Interestingly A.aureus has proven to produce large larvae,easy to raise in captivity. :wink:


I looked up Amblyglyphidodon aureus. That is a very attractive fish. It is a large damsel, and very interesting about how the lavae are large. Thanks for sharing that.

What did you mean by "where one of them belonged?"
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Re: Acanthochromis polyacanthus and what other 2 species ???

Postby Luis A M » Sun May 23, 2010 5:08 pm

Have you seen Todd G report on A.aureus? 8)
Altrichtys azurelineatus was formerly (albeit provisionally)placed in the Genus Amblyglyphidodon.
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