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dc.contributor.authorCastejón, Diego-
dc.contributor.authorRibes, Enric-
dc.contributor.authorDurfort, Mercè-
dc.contributor.authorRotllant, Guiomar-
dc.contributor.authorGuerao, Guillermo-
dc.identifierdoi: 10.1016/j.asd.2014.09.005-
dc.identifierissn: 1467-8039-
dc.identifiere-issn: 1873-5495-
dc.identifier.citationArthropod Structure and Development 44(1): 33-41 (2015)-
dc.description9 pages, 4 figures, 1 table-
dc.description.abstractThe morphology of the foregut of the Say's mud crab Dyspanopeus sayi was described in adults and larvae. The ossicle system was illustrated based on a staining method with Alizarin-Red. The gastric teeth and cardio-pyloric valve were dissected and examined using optical and scanning electron microscopy. In the adults, the morphology of ossicles and gastric teeth of D.sayi is very similar to the related species Rhithropanopeus harrisii. The foregut of first zoea (ZI) presented a functional cardio-pyloric valve while the filter press was lacking. The filter press was observed in the pyloric chamber from ZII. The most significant changes in morphology take place after metamorphosis from ZIV to megalopa, including the occurrence of the gastric mill. The organization and morphology of many megalopal foregut ossicles are recognizable in the adult phase, although the morphology of the gastric teeth differs from the morphology of adults. A correlation of gastric mill structures with food preferences and their contribution to the phylogeny are briefly discussed. © 2014 Elsevier Ltd.-
dc.description.sponsorshipBench fees were funded by INIA (RTA2011-00004-00-00) to G.G. Funding to D.C. (FPI-INIA fellowship, RTA2011-00004-00-00) was provided by the Spanish Ministry of Economy and Competitiveness-
dc.subjectAlizarin Red-
dc.subjectForegut ossicles-
dc.subjectDyspanopeus sayi-
dc.titleForegut morphology and ontogeny of the mud crab Dyspanopeus sayi (Smith, 1869) (Decapoda, Brachyura, Panopeidae)-
dc.description.versionPeer Reviewed-
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