Is this some type of pod ?

[BrendanH]

I really don't know much about pods but I just saw this little guy moving around - it's about 2-3 mm diameter. Boy was it hard to get these photos !! What do you think ? One of the good guys ?

thanks.....

 

[kribbz]

dude that some wierd looking stuff. i don't know what that is

 

[reefrunner69]

hmmm, sand skate maybe.

 

[Bang Guy]

Those are great pictures but I'll be darned if I know what it is. It resembles a baby Strombus maculatus but not 100%.

 

[BrendanH]

To add a little more info - which I should have done in my first post - this dude was swimming around, not on the glass. If a strombus - do they have a free-swimming phase ? In the final picture I posted you can see 2 protrusions which were used for propulsion - they moved very quickly, almost like a propeller !

Thanks for the suggestions so far !

 

[BrendanH]

Update - I wonder if it is an Ostracod ??

http://www.museum.vic.gov.au/crust/ostragal.html

That site is very useful but concentrates on Australian waters - anyone know any similar sites for different parts of the world ? Better yet, one that covers everything would be nice