Cirratulid Worms Dodecaceria Spp. Annelida: Polychaeta: Cirratulidae Status Native to Australia
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PaDIL - Fact Sheet Page 1 of 5 Cirratulid worms Dodecaceria spp. Annelida: Polychaeta: Cirratulidae Status Native to Australia Other Common Names None Listed Scientific Synonyms None Listed Host Types Marine Distribution - Regions Australasian - Oceanian Distribution - Notes Dodecaceria berkeleyi Knox, 1971 is known from the type location, New Zealand. Dodecaceria joubini Gravier, 1906 (type locality: Red Sea) is recorded from Western Australia by Augener (1913). At least one Dodecaceria species occurs widely in southeastern Australia (boring in mollusc shells and in corraline algae) and records have been identified as D.berkeleyi by Hartmann-Schroder (1981, 1990, 1991) but the genus has never been subject to critical taxonomic study in Australia and Australian records require re-evaluation. http://www.padil.gov.au/viewPest.aspx?id=1176 13/06/2008 PaDIL - Fact Sheet Page 2 of 5 Diagnostic Characters: Prostomium shape bluntly hoodlike, anterior margin blunt or slightly rounded. Eyes present, or absent. Eye spots single. Eye red. Usually without eyes. Peristomium with grooved tentacles arising laterally, one pair. Grooved tentacles arising from peristomium. First branchiae arising at same level as first tentacles. Branchiae on anterior chaetigers adjacent to notopodia or displaced by at most diameter of branchia. Position of branchiae relative to notopodia similar throughout. Number of branchiae per parapodium one. Branchiae limited to only a portion of the body. Comments on branchiae the distribution of branchiae is closely correlated with size; between 2-8 pairs present. Acicular chaetae present, first appear anteriorly, with at least some modified types (hooks). Distally spooned or spatulate acicular chaetae present, at least on some chaetigers. Dentate acicular chaetae absent. Knobby-tipped acicular chaetae absent. Acicular chaetae of posterior neuropodia alternating regularly with capillaries, or separate from capillaries (or capillaries absent). Acicular chaetae of posterior chaetigers lateral, not forming almost complete arcs. Smooth capillary chaetae absent. Serrated capillary chaetae present. Broad Sweep Marine Commodity Marine Specifics Specimen Contact Point [email protected] Name Robin Wilson Web links None Listed Padil links Spionid worm Spionid worm Mudworm http://www.padil.gov.au/viewPest.aspx?id=1176 13/06/2008 PaDIL - Fact Sheet Page 3 of 5 References Knox, G. A. (1971) Dodecaceria berkeleyi, n.sp., a polychaete (Family Cirratulidae) from New Zealand. Journal of the Fisheries Research Board of Canada, 28, 1437-1443. Acknowledgements Citation Wilson, R. & Dane, E. (2008) Cirratulid worms (Dodecaceria spp.) Pest and Diseases Image Library. Updated on 13/06/2008 2:45:12 PM. Available online: http://www.padil.gov.au Last Updated 13/06/2008 2:45:12 PM Diagnostic Images Anterior (thoracic) chaetae Caption: Dodecaceria species do not have modified chaetae Source: A. Murray (modified), ABRS Overview Images http://www.padil.gov.au/viewPest.aspx?id=1176 13/06/2008 PaDIL - Fact Sheet Page 4 of 5 Anterior end Caption: Drawing of anterior end of Dodecaceria spp. Source: A. Murray, ABRS Body form Caption: Photo showing general body form of Dodecaceria spp. Source: Dr G. Read, NIWA Wellington, NZ http://www.padil.gov.au/viewPest.aspx?id=1176 13/06/2008 PaDIL - Fact Sheet Page 5 of 5 Full size images available at http://www.padil.gov.au. http://www.padil.gov.au/viewPest.aspx?id=1176 13/06/2008.