Top ten Re: [Annelida] Swima the swimmer
(by g.read from niwa.co.nz)
Mon May 24 01:34:46 EST 2010
And now it's in the top ten bizarre species.
Top 10 New Species - 2010 http://species.asu.edu/Top10
Congratulations to the authors!
Note also the little 'killer sponge' from NZ waters which was discovered during a NIWA survey.
>>> On 22/08/2009 at 7:54 p.m., "Geoff Read" <g.read from niwa.co.nz> wrote:
> Osborn KJ, Haddock SHD, Pleijel F, Madin LP, Rouse GW 2009. Deep-Sea,
> Swimming Worms with Luminescent "Bombs". Science 325: 964 (and online
> Swima bombiviridis named (new genus, new species of acrocirrid)
> Abstract: "By using remotely operated vehicles, we found seven previously
> unknown species of swimming annelid worms below 1800 meters. Specimens were
> large and bore a variety of elaborate head appendages. In addition, five
> species have pairs of ellipsoidal organs homologous to branchiae that produce
> brilliant green bioluminescence when autotomized. Five genes were used to
> determine the evolutionary relationships of these worms within
> Cirratuliformia. These species form a clade within Acrocirridae and were not
> closely related to either of the two known pelagic cirratuliforms. Thus, this
> clade represents a third invasion of the pelagic realm from Cirratuliformia.
> This finding emphasizes the wealth of discoveries to be made in pelagic and
> deep demersal habitats."
> Nice discovery. I want to know what they feed on, and how.
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