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[Annelida] Lysaretidae family doubts

Geoff Read via annelida%40net.bio.net (by g.read from niwa.co.nz)
Tue Apr 6 16:02:43 EST 2010


Hello Roberto,

A quick answer is Lysaretidae is not recognised anymore, and Lysarete
is now in Lumbrineridae.

See: Carrera Parra, L.F. (2006). Phylogenetic analysis of Lumbrineridae
Schmarda, 1861 (Annelida: Polychaeta). Zootaxa 1332: 1–36. 
See also: http://www.marinespecies.org/aphia.php?p=taxdetails&id=967

Geoff

Diagnosis of Lysarete (fide Carrera Parra)

Diagnosis. Prostomium with three antennae, with two pairs of eyes;
notopodia well
developed; without any kind of hooded hooks; without branchiae;
pygidium with anal
cirri; maxillary apparatus with six pairs of maxillae, carriers longer
than MI, joined to
entire base of MI; MI forceps-like with internal accessory teeth, with
attachment lamella;
MII as long as MI, with ligament, wide attachment lamella along 2/3 of
posterior lateral
edge; without connecting plates; MIII completely pigmented, wide
attachment lamella 
along entire lateral edge; MIV completely pigmented, wide attachment
lamella; MV posterior to MIV; 
MVI displaced outward to the other maxillae. Mandible fused up to 3/4
of its length


>>> On 7/04/2010 at 4:43 a.m., "ROBERTO CARLOS DOMINGUES MARTINS"
<roberto from ua.pt>
wrote:
> Hi!
> 
> I'm doing a PhD on characterization of soft benthic 
> habitats from Portuguese Continental Shelf.
> I'm with a lot of doubts in Lysaretidae specimens's 
> identification.
> I have many books (Fauchald, Campoy, Fauvel, ...) but 
> unfortunately they haven't specific diagnosis for Lysarete 
> genus.
> One of my samples has 5 individuals with two distinct 
> peristomial segments, three antennae, branchiae pectinate 
> in the anterior region (8th -14th setiger) and multiple 
> setae types (pectinate, aciculae, limbate simple and 
> compound, compound bidentate hooded setae). As far as the 
> maxilla 1 is concerned I can't explain you, because the 
> individuals are so small I can't open them! Sorry. :(
> I'm very confused between the genus Halla or Lysarete!
> So, I hope somebody can help me as soon as possible, with 
> tips or articles!!! Please!!!!!
> 
> Sincerely yours,
> Roberto Martins
> 
> 
> ********************************************************
> Roberto Carlos Domingues Martins
> PhD student
> Dep. of Biology/CESAM
> Campus de Santiago - Aveiro
> 3810-193 Aveiro
> PORTUGAL
> 
> e-mail: roberto from ua.pt 
> site: www.cesam.ua.pt/roberto 
> 
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