Abstract
In this study Chone americana Day, 1973 from off the coast of North Carolina is redescribed and five new species are described from the Grand Caribbean region, as part of a revision of the genus. Chone americana is easily distinguishable from the other species by the presence of a pygidial cirrus, a radiolar membrane extending beyond half of the branchial crown length and long-sized radiolar tips. The unique distinguishing features for each new species are as follows: Chone diazi sp. nov. has completely exposed branchial lobes beyond the collar segment. In Chone farringtonae sp. nov. the main fang of posterior abdominal uncini extends beyond breast, and posterior peristomial ring collar length is twice as long as chaetiger 1. In Chone johnstonae sp. nov. the middorsal collar margin forms a broad gap. Chone perkinsi sp. nov. has a glandular ridge on chaetiger 2 broadest dorsally. Chone uebelackerae sp. nov. has a triangular pygidium and long radiolar tips. A taxonomic key for Chone species from the Grand Caribbean is included.References
Banse, K. (1972) Redescription of some species of Chone Kröyer and Euchone Malmgren, and three new species (Sabellidae, Polychaeta). Fishery Bulletin. Fish and Wildlife Service, United States, Department of Interior, 70(2), 459–495.
Cochrane, S.J. (2000) Taxonomy and systematics of selected marine soft-bottom fan worms (Polychaeta: Sabellidae: Sabellinae). PhD thesis, University of Saint Andrews, Scotland, 296 pp.
Day, J.H. (1973) New Polychaeta from Beaufort, with a key to all species recorded from North Carolina. NOAA Technical Reports, 375, 1–140.
Fitzhugh, K. (1989) A systematic revision of the Sabellidae-Caobangiidae-Sabellongidae complex (Annelida: Polychaeta). Bulletin of the American Museum of Natural History, 192, 104.
Fitzhugh, K. (2002) Fan worm polychaetes (Sabellidae: Sabellinae) collected during the Thai-Danish Bioshelf Project. Phuket Marine Biological Center Special Publication, 24, 353–424.
Giangrande, A. (1992) The genus Chone (Polychaeta, Sabellidae) in the Mediterranean Sea with description of C. longiseta n. sp. Bolletino di Zoologia, 59, 517–529.
Hofsommer, A. (1913) Die Sabelliden-Ausbeute der ’Poseidon’-Fahrten und die Sabelliden der Kieler Bucht. Wissenschaftliche Meeresuntersuchungen, Kiel, 15, 305–364.
Kinberg, J.G.H. (1867) Annulata nova. Öfversigt af Königlich Vetenskapsakademiens förhandlingar, Stockholm, 23, 9, 337–357.
Johnson, H.P. (1901). The Polychaeta of the Puget Sound region. Proceedings of the Boston Society of Natural History 29, 18, 381–437.
Knight-Jones, P., Knight-Jones, W. & Ergen, Z. (1991) Sabelliform polychaetes, mostly from Turkey´s Aegean coast. Journal of Natural History, 25, 837–858.
Krøyer, H. (1856) Bidrag til Kundskab af Sabellerne. Kongelige Danske Videnskabernes Selskabs Forhandlinger, 1–36.
Langerhans, P. (1880) Die wurmfauna Madeiras, 2. Zeitschrift für wissenschaftliche Zoologie, 33, 1, 2, 271–316.
Malmgren, A.J. (1867) Annulata Polychaeta Spetsbergiae, Groenlandiae, Islandiae et Scandinaviae hactenus cognita. Öfversigt af Königlich Vetenskapsakademiens förhandlingar, Stockholm, 24, 4, 127-235.
McIntosh, W.C. (1916) Notes from the Gatty Marine Laboratory, St. Andrews, 38. 1. On the British Sabellidae. 2. On the Sabellidae dredged by H.M.S. ’Porcupine’ in 1869 and 1870, and by H.M.S. ’Knight Errant’ in 1882. 3. On the Terebellidae and Sabellidae dredged in the Gulf of St. Lawrence, Canada by Dr. Whiteaves in 1871-73. 4. On the Sabellidae dredged by Canon A.M. Norman in Norway and Finmark. Annals and Magazine of Natural History, 17, 1–66.
Moore, J.P. (1923) The polychaetous annelids dredged by the U.S.S. ’Albatross’ off the coast of southern California in 1904, 4. Spionidae to Sabellariidae. Proceedings of the Academy of Natural Sciences, Philadelphia, 75, 179–259.
Reish, D. (1968) The polychaetous annelids of the Marshall Islands. Pacific Science, 22, 2, 208–231.
Rouse, G. (1994) New species of Oriopsis Caullery and Mesnil from Florida, Belize and Aldabra Atoll (Seychelles), and a new species of Amphiglena Claparède from Seychelles (Polychaeta: Sabellidae: Sabellinae). Bulletin of Marine Science, 54, 1, 180–202.
Southern, R. (1914) Clare Island Survey: Archiannelida and Polychaeta. Proceedings of the Royal Irish Academy, 31, 47, 1–160.
Tovar-Hernández, M.A. & Salazar-Vallejo, S.I. (2006) Sabellids (Polychaeta: Sabellidae) from the Grand Caribbean. Zoological Studies, 45 (in press).
Uebelacker, J.M. (1984) Sabellidae Malmgren 1867, Vol. IV. In: Uebelacker, J.M. & Johnson, P.G (Eds.), Taxonomic Guide to the Polychaetes of the Northern Gulf of Mexico, Final Report to the Minerals Management Service, Contract 14–12–001–29091. Barry A. Vittor and Assoc., Inc., Mobile, Alabama, 54.1–54.43.