FishProfiles.com Message Forums

what clam is this?i bought it from the market..8 of them..



http://aquaticpredators.com/forums/uploads/post-2122-1143544159.jpg

and what is this?it expands/opens in the day and closes like that in the evening. is it a pest?thx in advance again.

http://aquaticpredators.com/forums/uploads/post-2122-1143544424.jpg

http://aquaticpredators.com/forums/uploads/post-2122-1143544476.jpg

I'm going to share my uncomparable knowledge and tell you that they are invertebrates. If you need any more help, I'm here a lot.

________________________________________________
I like Led Zeppelin.

that is the most stupid answer i could ever imagine.

Well you got it!

________________________________________________
I like Led Zeppelin.

Your first invert looks like a cockle of some kind. Shell looks JUST like the cockles that can be found on beaches here in the UK, and it wouldn't surprise me to learn that there are masses of similar shells on tropical beaches.

As for which SPECIES of cockle you have, then I can safely tell you that you're going to have a LOT of fun determining that, because cockles have precious few species determining features available to the amaetur observer. That's a job for a professional invertebrate zoologist specialising in the field. Look up "Family Arcidae" and track down how many species you'll have to wade through to stand even a remote chance of identifying your specimens to species level. I'm tempted to suggest here that you'll be lucky to get down to Genus level, let alone species, unless you happen to know a specialist in the field who will devote his time to you pro bono.

Your other organism on your live rock, on the other hand, puzzles me at the moment as much as it puzzles you. However, it might be worth checking out whether or not you have a Sea Squirt. Check this page and find out more about these extremely curious animals that have a larval form that looks as if the adult animal is going to be a fish, and NOT the weird sessile creature it eventually ends up as! Sea Squirts are Tunicates - members of a group that is a sort of evolutionary side shoot from the evolution of the true vertebrates, and so, if you DO have a Sea Squirt, what you have is an animal that is, for want of a better phrase, a 'part time vertebrate'!


Panda Catfish fan and keeper/breeder since Christmas 2002