Favia or Acan?

[nanO352]

I was told It was a favia but I'm not to sure myself.
So what is it Favia or Acan?

 

[madamo]

Favia.

 

[vetdog]

favia

 

[pimpinitup6969]

def favia

 

[nanO352]

Thanks. How do you tell?

 

[DetectiveTofu]

o me, the flesh on Acans (Australian ones anyways) looks a bit more like a Lobophyllia, in that it is more meaty and textured. In the walls of each polyp of most Favia, the septa are more apparent. Favia tend to look more like craters in a rock to me, and Acan polyps look a little more "joined," even though they aren't.

 

[seapug]

They can look very similar when expanded but the easy way to tell is Acans have separate polyps with no tissue between them. Yours has separate polyps with a continuous "skin" between them so it's a favia....maybe even Goniastrea?

 

[ianiwane]

<a href=showthread.php?s=&postid=12381420#post12381420 target=_blank>Originally posted</a> by seapug
They can look very similar when expanded but the easy way to tell is Acans have separate polyps with no tissue between them. Yours has separate polyps with a continuous "skin" between them so it's a favia....maybe even Goniastrea?

Not true, acan echinata/subechinatas don't have seperated polyps.

But what you have is still a favia.

 

[seapug]

right....thanks for the correction. I guess I'm just going by the A. lords that are so ubiquitous nowadays.