ID help

RRaider · 05/05/2008, 05:08 PM

It's alive because we see it open up on the top. (The thing in the center)

cloak · 05/05/2008, 05:24 PM

Scallop?

Dingo Dog · 05/05/2008, 05:25 PM

Looks like some sort of clam maybe, but it's very difficult to tell. How far does it open and how often?

RRaider · 05/05/2008, 05:38 PM

It only opens a crack, between 1/16th and 1/8th of an inch. How often I'm not sure but it will close if it feels threatened.

Dingo Dog · 05/05/2008, 05:47 PM

I wouldn't think it's any cause for concern. If it is just some type of mussel, it will be a good filter for your tank.

pagojoe · 05/06/2008, 02:54 PM

It's an Ark Clam, family Arcidae. You can image search for that family name and may be able to ID it. There are several different ones that it could be, and they vary by the length to width ratio and whether the outline is convex, concave, angular, or rounded, so it's impossible to ID these guys without several views, and even then you might have to remove it from the rock to get a positive ID. Either way, it's harmless, as are most all filter feeders.

Cheers,

Don

05/05/2008, 05:08 PM	#1
RRaider Registered Member Join Date: Feb 2008 Location: Texas Posts: 703	ID help It's alive because we see it open up on the top. (The thing in the center)

05/05/2008, 05:24 PM	#2
cloak Moved On Join Date: Jul 2000 Location: Stockton, CA Posts: 14,854	Scallop?

05/05/2008, 05:25 PM	#3
Dingo Dog Premium Member Join Date: Mar 2004 Location: TEXAS Posts: 432	Looks like some sort of clam maybe, but it's very difficult to tell. How far does it open and how often?

05/05/2008, 05:38 PM	#4
RRaider Registered Member Join Date: Feb 2008 Location: Texas Posts: 703	It only opens a crack, between 1/16th and 1/8th of an inch. How often I'm not sure but it will close if it feels threatened.

05/05/2008, 05:47 PM	#5
Dingo Dog Premium Member Join Date: Mar 2004 Location: TEXAS Posts: 432	I wouldn't think it's any cause for concern. If it is just some type of mussel, it will be a good filter for your tank.

05/06/2008, 02:54 PM	#6
pagojoe Team RC Member Join Date: Feb 2007 Location: Conroe, TX Posts: 2,761	It's an Ark Clam, family Arcidae. You can image search for that family name and may be able to ID it. There are several different ones that it could be, and they vary by the length to width ratio and whether the outline is convex, concave, angular, or rounded, so it's impossible to ID these guys without several views, and even then you might have to remove it from the rock to get a positive ID. Either way, it's harmless, as are most all filter feeders. Cheers, Don