BDeed's picture

Marine worm

Observed: 14th March 2011 By: BDeed
Merseyside BioBankThe Wildlife Trust for Lancashire, Manchester and
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Worm01
Description:

Unknown marine worm, colourful and on the upper shoreline.

Identifications

No identification made yet.

Species interactions

No interactions present.

Comments

Mike Kendall's picture

Without the head its not possible to ID

It would be great to name this specimen BUT to do this you need to see the head and ideally details of the legs (parapodia); the tail as shown in the image doesn't really help. All I can tell for certain is that the specimen is likely to be mobile. How long was it ?

Mike Kendall

BDeed's picture

Never mind! It was about 3cm

Never mind! It was about 3cm long, though its length would vary a lot? I have no idea even what kind of age this is! Do they go through stages?

Mike Kendall's picture

3cm ?

That narrows it down a bit; but not much. Oddly, it looked bigger in the picture. Its probably a ragworm of some sort (Nereidae) but there are a couple of Hesionid species that might look a bit like this. Sorry I can't do better
Mike

Mike Kendall

BDeed's picture

Thanks

The picture is pretty zoomed in. No worries about not getting it down further, i didn't have a clue to start with so it's an improvement!

Mike Kendall's picture

size and age

Just noticed I forgot to comment on ages/size. They usually settle from the plankton at 0.2mm to 0.3mm. How much they grow depends on the species. I have seen museum specimens of Nereis virens > 60cm. There are more than 8000 species of polychete worm so its difficult to make broad generalisations.

Mike Kendall