Abstract
A second discovery of the cockscomb oyster associated shrimp species Lacertopontonia chadi is recorded from Sabah (Malaysia). The material is compared with the type description and paratypic material. The systematic position of the genus is reevaluated on the basis of morphological and molecular data focusing on the genera Conchodytes and Chernocaris. It is concluded that Lacertopontonia and Chernocaris fall within the present definition of Conchodytes and should be regarded as synonyms of the latter.
References
Bouchet, P., Le Guyader, H. & Pascal, O. (eds) (2011) The Natural History of Santo. Patrimoines Naturels, 70, 1–572.
Bruce, A.J. (1996) Crustacea Decapoda: Palaemonoid shrimps from the Indo-West Pacific region mainly from New Caledonia. In: A. Crosnier (ed.), Résultats des Campagnes MUSORSTOM, vol. 15. Mémoires du Muséum national d’Histoire naturelle, 168, 197–267.
Folmer, O., Black, M., Hoeh,W., Lutz, R. & Vrijenhoek, R. (1994) DNA primers for amplification of mitochondrial cytochrome c oxidase subunit I from diverse metazoan invertebrates. Molecular Marine Biology and Biotechnology, 3(5), 294–299.
Fransen, C.H.J.M. (1994) Marine palaemonoid shrimps of the Netherlands Seychelles Expedition 1992-1993. Zoologische Verhandelingen, 197, 85–152.
Fransen, C.H.J.M. (2002) Taxonomy, phylogeny, historical biogeography, and historical ecology of the genus Pontonia Latreille (Crustacea: Decapoda: Caridea: Palaemonidae). Zoologische Verhandelingen, 336, 1–433.
Guindon, S. & Gascuel, O. (2003) A simple, fast and accurate method to estimate large phylogenies by maximum-likelihood. Systematic Biology, 52, 696–704.
Hall, T.A. (2001) Bioedit: A User-Friendly Biological Sequence Alignment Editor and Analysis, version 5.09. Department of Microbiology, North Carolina State University, North Carolina.
Johnson, D.S. (1967) On some commensal decapod crustaceans from Singapore (Palaemonidae and Porcellanidae). Journal of Zoology, London, 153, 499–526.
Kassem, K., Hoeksema, B.W. & Affendi, Y.A. (eds) (2012) Semporna Marine Ecological Expedition. WWF-Malaysia, NCB Naturalis, Universiti Malaysia Sabah, Kota Kinabalu Malaysia, v + 262 pp.
Marin, I. (2011) Lacertopontonia chadi gen. et sp. nov., a new oyster-associated Pontonia-like pontoniine shrimp (Crustacea, Decapoda, Palaemonidae) from the Great Barrier Reef of Australia. Zootaxa, 2968, 57–68.
Posada, D. (2008) jModelTest: Phylogenetic Model Averaging. Molecular Biology and Evolution, 25(7), 1253–1256.
Tamura, K., Peterson D., Peterson N., Stecher G., Nei M. & Kumar S. (2011) MEGA5: Molecular Evolutionary Genetics Analysis using Maximum Likelihood, Evolutionary Distance, and Maximum Parsimony Methods. Molecular Biology and Evolution, 28, 2731–2739.
Thompson, J.D., Higgins, D.G. & Gibson, T.J. (1994) CLUSTAL W: improving the sensitivity of progressive multiple sequence alignment through sequence weighting, position-specific gap penalties and weight matrix choice. Nucleic Acids Research, 22, 4673–4680.