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A new tube anemone species

By Leonard Ho - Posted Jul 15, 2014 10:10 AM
Pachycerianthus schlenzae is a new ceriantharid from Brazil. The timing of the paper documenting this new species of tube anemones couldn't have been more perfect (and no, we aren't talking about the World Cup). Tomorrow, Advanced Aquarist publishes a new magazine article about tube anemones.
A new tube anemone species

Beautiful but deadly (to fish)


A new species of Pachycerianthus(Cnidaria: Ceriantharia) is described from the Brazilian coast of the southwestern Atlantic Ocean. Pachycerianthus schlenzae sp. nov. is found in fine sand or mud in shallow waters of Abrolhos and Royal Charlotte Bank. The new species is only known from this area and is most notably different from other species of the genus Pachycerianthus in mesentery arrangement and cnidome. In addition to the description, we provide some biological data collected from individuals cultivated under laboratory conditions.

The full open-access paper can be read here.


A close-up of the unique mesenteries and cnidome (array of nematocysts) that define this new species.  This is the stuff that makes fish disappear at night and make you say ouch.

Author: Leonard Ho
Location: Southern California

I'm a passionate aquarist of over 30 years, a coral reef lover, and the blog editor for Advanced Aquarist. While aquarium gadgets interest me, it's really livestock (especially fish), artistry of aquariums, and "method behind the madness" processes that captivate my attention.


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