Galathowenia Kirkegaard 1959

• Main Authors: Capa, Maria, Parapar, Julio, Hutchings, Pat
• Format: Text
• Language: unknown
• Published: Zenodo 2012
• Subjects: Biodiversity; Taxonomy; Animalia; Annelida; Polychaeta; Sabellida; Oweniidae; Galathowenia; Antarctic; The Antarctic; Antarc*
• Online Access: https://dx.doi.org/10.5281/zenodo.5480015; https://zenodo.org/record/5480015

GENUS GALATHOWENIA KIRKEGAARD, 1959, EMENDED Galathowenia Kirkegaard, 1959; Fauchald, 1977; Blake, 1984, 2000. Clymenia Ørsted, 1844 [not Münster (Ammonoidea)]. Psammocollus Grube, 1866. Emended diagnosis: Head cylindrical, anteriorly truncated, terminal mouth extending midventrally as an elongated slit and with ventral pharyngeal organ. Breakage groove between first and second chaetiger. Oesophageal commissure Y-shaped. First three segments generally uniramous, with capillaries on notopodia. Following segments biramous, notopodia with capillary chaetae only and neuropodial uncini with two teeth generally obliquely arranged. Type species: Galathowenia africana Kirkegaard, 1959, by original designation. Remarks: The presence of a breakage groove between the first and second chaetiger has been identified in several species of the genus (Blake, 1984; Parapar, 2001, 2003a), including the type material of the type species (as drawn by Kirkegaard, 1959 and studied by J. P.), as a line of autotomy. Although it has not been described in several other Galathowenia species it could have been overlooked and represents a potential synapomorphy for the genus (Fig. 1B). Other main features characterizing Galathowenia are the presence of a cylindrical head with a truncated anterior end, an attribute shared with Owenia but differing from this genus in lacking a tentacular crown, and the presence of a ventral slit with prominent lateral lips. An exception to this head shape, with the ventral slit not well developed, is G. australis (Grube, 1866), which has been shown here not to belong to this group (Fig. 1C, D), contrary to earlier studies (Parapar, 2003b). : Published as part of Capa, Maria, Parapar, Julio & Hutchings, Pat, 2012, Phylogeny of Oweniidae (Polychaeta) based on morphological data and taxonomic revision of Australian fauna, pp. 236-278 in Zoological Journal of the Linnean Society 166 (2) on pages 240-241, DOI: 10.1111/j.1096-3642.2012.00850.x, http://zenodo.org/record/5408795 : {"references": ["Kirkegaard J. 1959. The Polychaeta of West Africa. Part I. Sedentary species. Atlantide Reports 5: 10 - 117.", "Fauchald K. 1977. The polychaete worms. Definitions and keys to the orders, families and genera. Natural History Museum of Los Angeles County, Science Series 28: 1 - 188.", "Blake JA. 1984. Polychaeta Oweniidae from Antarctic seas collected by the United States Antarctic Research Program. In: Hutchings PA, ed. Proceedings of the First International Polychaete Conference. Sydney: The Linnean Society of New South Wales, 112 - 117.", "Blake JA. 2000. Chapter 5. Family Oweniidae Rioja, 1917. In: Blake JA, Hilbig B, Scott PV, eds. Taxonomic atlas of the benthic fauna of the Santa Maria Basin and the Western Santa Barbara Channel. Vol. 7. The Annelida. Part 4: Polychaeta: Flabelligeridae to Sternaspidae. Santa Barbara, CA: Santa Barbara Museum Natural History, 97 - 127.", "Orsted AS. 1844. Zur classification der Annulaten mit Beschreibung einiger neuer oder unzulanglichbekannter Gattungen und Arten. Archiv Fur Naturgeschichte. Berlin 10: 99 - 112.", "Grube AE. 1866. Beschreibungen neuer von der Novara- Expedition mitgebrachter Anneliden und einer neuen Landplanarie. Verhandlungen Der Kaiserlich-Koniglichen Zoologisch-Botanischen Gesellschaft in Wien 16: 173 - 184.", "Parapar J. 2001. Revision of five species referred to Myriochele and Galathowenia (Polychaeta: Oweniidae) from the Antarctic Seas based upon type material. Proceedings of the Biological Society of Washington 114: 403 - 413.", "Parapar J. 2003 a. Oweniidae (Annelida, Polychaeta) from Icelandic waters, collected by the BIOICE project, with the description of Myrioglobula islandica n. sp. Sarsia 88: 274 - 290.", "Parapar J. 2003 b. Resurrection of Galathowenia australis (Polychaeta, Oweniidae) based upon type material. Cahiers De Biologie Marine 44: 249 - 255."]}