Marine organisms ID help!

[arturoag75]

hi guyes,
can you help me for ID of this marine microoganisms?
i know only Foraminifera.
shot objec. 16x DIC flash
many thanks
arturo


http://www.youtube.com/watch?v=-jpJhDHSWow
http://www.youtube.com/watch?v=amEXS4bDLhw

[Franz Neidl]

Interesting picture Arturo. I think this is a larva from a Polychaeta.

Franz

[RogelioMoreno]

Very interesting!

Rogelio

[BJ]

Arturo,

Franz is of course correct. I think it would be difficult to identify the genus as it is an early "nectochaete" stage. It still retains a ring of cilia behind the head which represents the ring of cilia found on the earlier "trochophore" stage. As the larva develops, these cilia will disappear, more segments will be added and it will take on more mature appearance which would make it easier to identify.

You might find this illustrated key useful:

https://scholarsbank.uoregon.edu/xmlui/ ... equence=16

...it is for the northern Pacific, but the families and genera of polychaetes are widespread.

a nice picture of a stage not often photographed- thank you !

boa sorte
Brian

[Jacek]

Beautiful photo and interesting object

[arturoag75]

many thanks to all for help!
i left you another shot...25x 0bjc. Flash
arturo

[RogelioMoreno]

Arturo,

Very nice!

The background and contrast on this one is very good, I like this DIC setting.

Rogelio

[curt0909]

Interesting animal. I've never seen anything like it. Excellent photography as usual

[arturoag75]

Rogelio, Curt
many thanks
arturo

[Charles Krebs]

Arturo,

Excellent photographs. I really like your videos as well. What magnification was used on the veliger video?

[arturoag75]

Hi charlie,
many thanks for comment
i used a 16x and 25x objectives and T3 canon!
best
arturo