<strong>New and little-known gnathiid isopod crustaceans (Cymothoida) from the northern Great Barrier Reef and the Coral Sea</strong>

JÖRUNDUR SVAVARSSON; NIEL L. BRUCE

doi:10.11646/zootaxa.3380.1.1

Issue: Vol. 3380 No. 1: 5 Jul. 2012

Type: Articles

Published: 2012-07-05

DOI: 10.11646/zootaxa.3380.1.1

Page range: 1–33

Abstract views: 49

PDF downloaded: 21

New and little-known gnathiid isopod crustaceans (Cymothoida) from the northern Great Barrier Reef and the Coral Sea

JÖRUNDUR SVAVARSSON⁺⁻
NIEL L. BRUCE⁺⁻

Institute of Biology, University of Iceland, Aragata 9, 101 Reykjavík, Iceland and University of Iceland's Research Centre at Suðurnes, 245 Sandgerði, Iceland

Museum of Tropical Queensland and School of Marine and Tropical Biology, James Cook University; Queensland Museum, 70–102 Flinders Street, Townsville, Queensland 4810, Australia; Senior Research Fellow, Department of Zoology, University of Johannesburg, South Africa

Crustacea Coral reefs Great Barrier Reef Coral Sea Isopoda Gnathiidae taxonomy

PDF (3MB)

Abstract

Ten species of Gnathiidae (Crustacea, Isopoda, Cymothoida) including six new species, are reported from Lizard Islandand nearby reefs, northern Great Barrier Reef and reefs of the Coral Sea (Chesterfield Reefs, Mellish Reef and MarionReef): Gnathia wistari sp. nov. (Lizard Island region and Capricorn Group, southern Great Barrier Reef), Gnathia coral-maris sp. nov. (Mellish Reef), Gnathia varanus sp. nov. (Lizard Island group), Gnathia marionis sp. nov. (Marion Reef),Gnathia hamletgast sp. nov. (Chesterfield Reefs) and Elaphognathia australis sp. nov. (Chesterfield Reefs). New locali-ties are reported for four other species: Gnathia aureamaculosa Ferreira and Smit, 2009 and Gnathia masca Farquharsonand Smit, 2012 from Lizard Island and nearby reefs; Gnathia falcipenis Holdich and Harrison, 1980 and Gnathia variobranchia Holdich and Harrison, 1980 from Lizard Island, Wistari Reef, Heron Island and Chesterfields Reefs.

References

Brandt, A. & Poore, G.C.B. (2003) Higher classification of the flabelliferan and related Isopoda based on a reappraisal of relationships. Invertebrate Systematics, 17(6), 893–923.
Bruce, N.L. (2009) The marine fauna of New Zealand: Isopoda, Aegidae (Crustacea). NIWA Biodiversity Memoir, 122, 1–252.
Coetzee, M.L., Smit, N.J., Grutter, A.S. & Davies, A.J. (2008) A new gnathiid (Crustacea, Isopoda) parasitizing two species of requiem sharks from Lizard Island, Great Barrier Reef, Australia. Journal of Parasitology Research, 94(3), 608–615.
Coetzee, M.L., Smit, N.J., Grutter, A.S. & Davies, A.J. (2009) Gnathia trimaculata n. sp. (Crustacea: Isopoda: Gnathiidae), an ectoparasite found parasitising requiem sharks from Lizard Island, Great Barrier Reef, Australia. Systematic Parasitology, 72(2), 97–112.
Cohen, B.F. & Poore, G.C.B. (1994) Phylogeny and biogeography of the Gnathiidae (Crustacea: Isopoda) with descriptions of new genera and species, most from south-eastern Australia. Memoirs of the Museum of Victoria, 54, 271–397.
Coleman, C.O., Lowry, J.K. & Macfarlane, T. (2010) DELTA for beginners. An introduction into the taxonomy software package DELTA. ZooKeys, 45, 1–75.
Dallwitz, M.J., Paine, T.A. & Zurcher, E.J. (1997) User's guide to the DELTA system. A general system for processing taxonomic descriptions. CSIRO Division of Entomology, Canberra, 1–160 pp.
Farquharson, C., Smit, N.J., Grutter, A.S. & Davies, A.J. (2012) Gnathia masca sp. nov. (Crustacea, Isopoda, Gnathiidae) from Lizard Island, Great Barrier Reef, Australia. Zootaxa, 3233, 22–36.
Ferreira, M.L., Smit, N.J., Grutter, A.S. & Davies, A.J. (2009) A new species of gnathiid (Crustacea: Isopoda) parasitizing teleosts from Lizard Island, Great Barrier Reef, Australia. Journal of Parasitology, 95(5), 1066–1075.
Ferreira, M., Smit, N.J. & Davies, A.J. 2010. Gnathia grutterae sp. nov. (Crustacea, Isopoda, Gnathiidae) parasitising representatives of the Balistidae, Labridae and Tetraodontidae from Lizard Island, Great Barrier Reef, Australia. Zootaxa, 2718, 39–50.
Grutter, A.S., Morgan, J.A.T. & Adlard, R.D. (2000) Characterising parasitie [sic] gnathiid isopod species and matching life stages with ribosomal DNA ITS2 sequences. Marine Biology, 136, 201–205.
Grutter, A.S., Pickering, J., McCallum, H. & McCormick, M.I. (2008) Impact of micropredatory gnathiid isopods on young coral reef fishes. Coral Reefs 27(3), 655–661.
Grutter, A.S. (2008) Interactions between gnathiid isopods, cleaner fish, and other fish at Lizard Island, Great Barrier Reef. Journal of Fish Biology 73, 2094–2109.
Holdich, D.M. & Harrison, K. (1980) The crustacean isopod genus Gnathia Leach from Queensland waters with description of nine new species. Australian Journal of Marine and Freshwater Research, 31, 215–240.
Keable, S.J. (2006) Taxonomic revision of Natatolana (Crustacea: Isopoda: Cirolanidae). Records of the Australian Museum, 58(2), 133–244.
Kensley, B. (1988) Preliminary observation on the isopod crustacean fauna of Aldabra Atoll. Bulletin of the Biological Society of Washington, 8, 40–44.
Kensley, B. & Schotte, M. (1989) Guide to the Marine Isopod Crustaceans of the Caribbean. Smithsonian Institution Press, Washington, D.C. & London, 1–308 pp.
Kensley, B., Schotte, M. & Poore, G.C.B. (2009) Gnathiid isopods (Crustacea: Isopoda: Gnathiidae), mostly new, from the Indian Ocean. Proceedings of the Biological Society of Washington, 122(2), 32–51.
Monod, T. (1926) Les Gnathiidæ. Essai monographique (Morphologie, Biologie, Systématique). Mémoirs de la Société de Sciences Naturelles du Maroc, 13, 1–668.
Müller, H.-G. (1988a) The genus Gnathia Leach (Isopoda) from the Santa Marta area, northern Colombia, with a review of Gnathiidea from the Caribbean Sea and Gulf of Mexico. Bijdragen tot de Dierkunde, 58(1), 88–104.
Müller, H.-G. (1988b) Redescription of Gnathia johanna Monod, 1926 (Isopoda) from St. John, Virgin Islands. Bulletin Zoölogisch Museum Universiteit van Amsterdam, 11(15), 129–135.
Müller, H.-G. (1989a) Gnathia wolffi n. sp., a coral-reef inhabiting isopod from Kenya, with a key to the Gnathia ferox complex (Cymothoidea: Gnathiidae). Bonner Zoologische Beiträge, 40, 63–67.
Müller, H.-G. (1989b) Two new species of Gnathia Leach from coral reefs at Mooréa, Society Islands, with redescription of Gnathia margaritarum Monod, 1926 from Panama Pacific (Isopoda: Cymothoidea: Gnathiidae). Bulletin Zoölogisch Museum, Universiteit van Amsterdam, 12(3), 65–78.
Nagel, L., Montgomerie, R. & Lougheed, S.C. (2008) Evolutionary divergence in common marine ectoparasites Gnathia spp. (Isopoda: Gnathiidae) on the Great Barrier Reef: phylogeography, morphology, and behaviour. Biological Journal of the Linnean Society, 94, 569–587.
Nagel, L. & Grutter, A.S. (2007) Host preference and specialization in Gnathia sp., a common parasitic isopod of coral reef fishes. Journal of Fish Biology, 70, 497–508.
Poore, G.C.B. & Lew Ton, H. (2002) Gnathiidae Leach, 1814. In: Poore, G.C.B. (Ed.) Crustacea: Malacostraca: Syncarida and Peracarida: Isopoda, Tanaidacea, Mictacea, Thermosbaenacea, Spelaeogriphacea. Zoological Catalogue of Australia. CSIRO Publishing, Melbourne, 19.2A, 184–191.
Smit, N.J. & Davies, A.J. (2004) The curious life-style of the parasitic stages of gnathiid isopods. Advances in Parasitology, 58, 289–391.
Watling, L. (1989) A classification concept for crustacean setae based on the homology concept. In: Felgenhauer, B.E., Watling, L. & Thistle, A.B. (Eds.) Functional morphology of feeding and grooming in Crustacea. A.A. Balkema, Rotterdam, 6, 15–26.
Wilson, G.D.F., Sims, C.A. & Grutter, A.S. (2011) Toward a taxonomy of the Gnathiidae (Isopoda) using juveniles: the external anatomy of Gnathia aureamaculosa zuphea stages using scanning electron microscopy. Journal of Crustacean Biology, 31, 509–522.