[Annelida] Polychaete detective work

Geoff Read via annelida%40net.bio.net (by g.read from niwa.co.nz)
Mon May 12 16:01:31 EST 2008


>>> On 13/05/2008 at 6:05 a.m., "Scott Jones" <msjoneser from gmail.com> wrote:
>   Is there another polychaete family whose neuroseta is a rostrate uncinus
> with subrostral hairs below the main fang beside the Maldanids?

Scott, Polikey, by  Chris Glasby & Kristian Fauchald, suggests only Arenicolidae juveniles might also have only bearded neurochaetal hooks (ie long handled forms). 

http://www.environment.gov.au/biodiversity/abrs/online-resources/polikey/index.html 

Maldanid neurochaeta are not regarded as uncini, which is a term more used for chaetae typically squat and plate-like in form. If uncini have a handle, the head is usually still squat and substantially beak-like. However so-called 'acicular uncini' in sabellids would be similar to maldanid neurochaetae - minus the beard as far as I know, except damaged forms may possibly appear to have a beard. (Sabellid experts may wish to correct me on the nuances or possibly the gross errors of the above).

Geoff





-- 

 Geoff Read <g.read from niwa.co.nz>
   http://www.annelida.net/
  http://www.niwascience.co.nz/ncabb/





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