Table 4 in A review of primary freshwater crab mandible morphology: terminology and systematic importance (Crustacea: Decapoda: Brachyura)

Table 4. Comparisons of the number of segments on the mandibular palps of families of marine brachyruans (Heterotremata and Thoracotremata), plus three species of South American freshwater crabs (Trichodactylidae), based on reports from the literature and from the present study.
GroupFamilySpeciesNumber of ‘segments’ of mandibular palpReferenceHeterotremataAethridaeHepatus pudibundus2Hebling and Rieger (2003)HeterotremataAtelecyclidae3Davie et al. (2015a)HeterotremataCancridae3Davie et al. (2015a)HeterotremataCheiragonidae3Davie et al. (2015a)HeterotremataCorystidae2Davie et al. (2015a)HeterotremataCryptocheiridae0Davie et al. (2015a)HeterotremataEpialtidaeDoclea ovis3This studyHeterotremataInachidaeStenorhynchus seticornis2Yang (1976)HeterotremataInachoididaePyromaia tuberculata2Luppi and Spivak (2003)HeterotremataMithracidaeMithraculus sculptus2Rhyne et al. (2006)HeterotremataPanopeidaeEriphia gonagra2Fransozo and Negreiros-Fransozo (1987)HeterotremataPanopeidaeEurypanopeus abbreviatus3Fransozo and Negreiros-Fransozo (1987)HeterotremataPanopeidaeEurytium limosum2Guimaraes and Negreiros-Fransozo (2005)HeterotremataPanopeidaeMenippe nodifrons2Fransozo et al. (1988)HeterotremataPanopeidaePanopeus herbstii2Hebling et al. (1982)HeterotremataParthenopidaeParthenope serrata2Yang (1971)HeterotremataPirimelidae2Davie et al. (2015a)HeterotremataPortunidaeCallinectes ornatus3Bolla Junior et al. (2008)HeterotremataPortunidaeCallinectes sapidus3This studyHeterotremataPortunidaeCallinectes sapidus3Barutot et al. (2001)HeterotremataTrichodactylidaeDilocarcinus pagei2Vieira et al. (2013)HeterotremataTrichodactylidaeDilocarcinus pagei3This studyHeterotremataTrichodactylidaeDilocarcinus septemdentatus3Santos and Vieira (2017)HeterotremataTrichodactylidaeTrichodactylus sp.3Muller (1892)ThoracotremataGecarcinidaeDiscoplax gracilipes3This studyThoracotremataGecarcinidaeCardisoma armatum3This studyThoracotremataGrapsidaeGoniopsis pelii3This studyThoracotremataGrapsidaePachygrapsus transversus3Flores et al. (1998)ThoracotremataOcypodidaeUca burgersi3Vieira et al. (2010)ThoracotremataSesarmidaeArmases rubripes2Diaz and Ewald (1968)ThoracotremataSesarmidaeLabuanium politum3This studyThoracotremataSesarmidaeMetopaulias depressus2Gonzalez-Gordillo et al. (2010)ThoracotremataSesarmidaeSesarma rectum2Fransozo (1986 /87)ThoracotremataVarunidaeCyrtograpsus angulatus3Rieger and Beltrao (2000)ThoracotremataVarunidaeEriocheir sinensis3This studyThoracotremataVarunidaeNeohelice granulata2Rieger and Nakagawa (1995)