ID Please - Aquarium Advice

dhouck · 04-06-2008, 05:45 PM

Got this on a mushroom rock today. Didn't notice it until the shroom retracted. It's about 1 inch and it opens in the miidle of the pointed end.
When open, it raises slightly from the rock.

Thanks

**roka64** · 04-07-2008, 12:43 AM

Wow, that's a new one. So it only opens at the very front, where the lines come together?
Can you get a better pic?
Does it move slow?

dhouck · 04-07-2008, 01:33 AM

Yes, it opens where the lines come together. It moves like a clam: slowly opening then snapping shut when startled. I can't see a definitive hinge, though. The mushroom has since covered it, at least for today. Working on a better pic.

dhouck · 04-09-2008, 11:59 PM

These are the best I could do. In the closer one, you can see that it is open slightly. That's about the extent that I 've seen it open.

**roka64** · 04-10-2008, 12:14 AM

It looks like a clam that has attached its self to a horse shoe crab. I am really stumped at this point. Does the back end have a tail? Can you pick it up and take a pic of it;s underside?

dhouck · 04-10-2008, 02:06 AM

No, there isn't a tail and no horseshoe crab.

I found this pic online. It's called a heart cockle. It looks similar, but from other pics it seems cockles (though not specifically the heart cockle) are shaped like a regular bivalve clam. So that would mean that the creature in my tank is buried lip-down in the rock. And what I'm looking at is the hinge. Don't know if all cockles are shaped this way

**roka64** · 04-10-2008, 10:24 AM

You might have something there.

04-07-2008, 12:43 AM	#2
roka64 Aquarium Advice Addict Community Moderator Join Date: Mar 2006 Posts: 10,985 Images: 12	Wow, that's a new one. So it only opens at the very front, where the lines come together? Can you get a better pic? Does it move slow? __________________ Age is relative, you are only as old as you act....of course, this works in reverse.... Questions loved, heeded advice greatly appreciated! Vote for AA Good reading about: Nitrogen Cycle Fishless Cycling Need more help? Articles Acronym List --Scott

04-10-2008, 12:14 AM	#5
roka64 Aquarium Advice Addict Community Moderator Join Date: Mar 2006 Posts: 10,985 Images: 12	It looks like a clam that has attached its self to a horse shoe crab. I am really stumped at this point. Does the back end have a tail? Can you pick it up and take a pic of it;s underside? __________________ Age is relative, you are only as old as you act....of course, this works in reverse.... Questions loved, heeded advice greatly appreciated! Vote for AA Good reading about: Nitrogen Cycle Fishless Cycling Need more help? Articles Acronym List --Scott

04-10-2008, 10:24 AM	#7
roka64 Aquarium Advice Addict Community Moderator Join Date: Mar 2006 Posts: 10,985 Images: 12	You might have something there. __________________ Age is relative, you are only as old as you act....of course, this works in reverse.... Questions loved, heeded advice greatly appreciated! Vote for AA Good reading about: Nitrogen Cycle Fishless Cycling Need more help? Articles Acronym List --Scott

Thread Tools	Search this Thread
Show Printable Version Email this Page	Search this Thread: Advanced Search
Display Modes
Linear Mode Switch to Hybrid Mode Switch to Threaded Mode

04-07-2008, 01:33 AM	#3
dhouck Aquarium Advice Apprentice Join Date: Jan 2008 Posts: 13	Yes, it opens where the lines come together. It moves like a clam: slowly opening then snapping shut when startled. I can't see a definitive hinge, though. The mushroom has since covered it, at least for today. Working on a better pic.