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Old 01/14/2012, 03:57 PM   #1
GerritM
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Snail ID (Pollia undosa?)

Hi Don!
Do you know this snail?
My guess is, that this snail is a Pollia undosa. Iīm not really sure.
Is it right, or do you think itīs an another snail?
I donīt know where this snail came from.
I think the snail came as hitchhiker with live rocks from Bali/Indonesia.
Size is now 4 cm.



regards
Gerrit


Attached Images
File Type: jpg Pollia undosa (1).jpg (86.5 KB, 9 views)
File Type: jpg Pollia undosa (2).jpg (97.1 KB, 8 views)
File Type: jpg Pollia undosa (3).jpg (99.4 KB, 8 views)
File Type: jpg Pollia undosa (4).jpg (91.4 KB, 6 views)
File Type: jpg Pollia undosa (5).jpg (98.8 KB, 7 views)
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ps: sorry for my english. I hope you understand, what i mean. ;-)
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Old 01/15/2012, 08:51 PM   #2
JennaLynn
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Looks like you're correct, and It prehaps is a Pollia Undosa, which is indeed a cool snail with a very beautiful shell!

A lot of people want this snail in their tanks due to the fact of it's beauty and goofiness with its long face. You could find a long face like that on the narcissus snail also, but the pollia undosa's shell is indeed one of a kind.

It was probably a hitchhiker clinging on to the rock, considering these snails are mainly distributed in the Red Sea, in the Indian Ocean along Aldabra, Chagos and Tanzania and in the Western Pacific Ocean.


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Old 01/17/2012, 01:12 PM   #3
pagojoe
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Yes, I'd call that Pollia undosa. There are several different variants that are being called by that name, and there is a Pollia from the Line Islands & Marquesas that appears to be intermediate between P. undosa and P. subcostata (shape of P. undosa, but with lighter-colored ribs and orange background). Yours is more typical of the west-central Pacific.

Cheers,



Don


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Old 01/18/2012, 06:23 AM   #4
GerritM
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Hi JennaLynn and Don!
Thanks a lot for the confirmation.
Does anyone of you both know, what P. undosa feeds? Even active hunting other snails, so as my P. fumosa and my Thais sp., or preferred they another food (worms, carrion, algae, detritus.....), so as my Pyrene punctata respectively my Pyrene tankervillei?

best regards
Gerrit


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Old 01/18/2012, 12:30 PM   #5
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Hi Gerrit,

This species is really widespread in a variety of different habitats, which usually indicates that it is a generalist feeder, able to survive on a variety of prey. Some of their relatives are even known to scavenge bits of dead animals, so this species may also be able to do that. However, all that I can find on the diet of these animals indicates that they have a "very broad diet" that may include polychaetes and other molluscs. I have seen them kill and eat other snails, and a closely related species is known to feed on barnacles. They aren't equipped to eat algae or detritus, although carrion might be an option.

Hope that helps!

Cheers,



Don


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Old 01/18/2012, 03:07 PM   #6
GerritM
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Yes, that helps me. Thank you Don. I'll be watching, what they will eat.
Thanks Don.


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