...there are barely 7,000 echinoderms.
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There Are Easily Over 100,000 Extant Mollusk Species...
Category: Bringin' It
Posted on: March 29, 2008 7:05 PM, by CR McClain
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hmm... conservative estimates of arthropod species numbers start at 5 million...
Posted by: kevin z | March 30, 2008 4:59 AM
That's 100,000 described buddy. Arthropod lovers always report the estimated "potential" number based on some beatle count in the tropics. How many assumptions does that model have anyway? Seriously, how many arthropods have been described?
Posted by: CR McClain | March 30, 2008 10:58 AM
I commented below, but they say here in several sources that 83% of described species are arthropods.
Crustacea alone have ~52,000 species described.
Don't let it bug you - mollusks are cool. Crabs think so too.
Posted by: Melusine | March 30, 2008 12:18 PM