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 Grazing Snails: Genus Clithon.

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Deb
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PostSubject: Grazing Snails: Genus Clithon.   Wed May 01, 2013 2:10 pm

The Spiky Nerite Snail.

Family: Neritidae
Scientific name:  Clithon diadema
Range: Southeast Asia to New Guinea, the Solomon Islands, Vanuatu, Fiji, and Samoa
Common names: Spiky nerite snail, horned nerite snail, bumblebee nerite snail.


Clithon diadema

Yesterday, I dropped in to Fin & Feather on Lakeside.  To my surprise, they had some new aquatic snails which I had heard of but never seen for myself.  

Aquatic grazing snails, also known collectively as Nerites, have been popular for a while but most of us that keep them have only had the opportunity to keep Neritina.  

Now, Clithon snails are available, too, and F&F has a few color forms.   The ones I saw were only 8 mm long, at the longest diagonal measuring point.  

Using all of my ID skills, I've decided that this little guy is the Bumblebee or Spiky Nerite,
Clithon diadema.  

 

This one shows how round the shell is:
 

This one shows it in the aquarium:
 

If "Spike" does as well in this tank as his Neritina cousins, then I will be going back for more!

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gerald
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PostSubject: Re: Grazing Snails: Genus Clithon.   Wed May 01, 2013 3:34 pm

Are there any nerites that reproduce in fresh water, or do all species need brackish or marine water for their larval period? They sure are cute.
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PostSubject: Re: Grazing Snails: Genus Clithon.   Fri May 03, 2013 2:09 pm

To answer that question, I don't know.  
Most of what I know about nerites comes from an article by Maike Wilstermann-Hildebrand in the Jan/Feb 2012 issue of Amazonas magazine ("The Grazing Nerites").  This is mostly a learned article on identification and does not discuss the details of reproduction.  The rest of what I know comes from what other people tell me or from what I've observed with my own nerites.  

On-line accounts vary.  Most of it seems to be people repeating what other people say, which is that immature nerites cannot develop properly in fresh water.  These reports are only for species of nerites which have made it to the hobby.  There are many more genera and species of nerites which have not.  

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PostSubject: Re: Grazing Snails: Genus Clithon.   Mon Oct 06, 2014 11:45 am

Here is an update of my little Clithon snail.  



It's not that obvious from the photo, but he's more than doubled in size. The horns have diminished, or eroded, which happens with age as mentioned in the Amazonas article.

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PostSubject: Re: Grazing Snails: Genus Clithon.   Tue Oct 07, 2014 1:07 am

Thanks for the update Deb!!! Hello

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