Table 2 in New species of the genus Inversidens Haas, 1911 (Unionoida, Unionidae, Gonideinae) from Jiangxi Province, China

Table 2. Conchological characters of Inversidens rentianensis sp. nov., Inversidens brandtii, Inversidens pantoensis. Characteristic descriptions of I. brandtii and I. pantoensis are referenced from Kondo (1982, 2008) and He and Zhuang (2013).
I. rentianensis sp. nov.I. brandtiiI. pantoensisShell shapeIrregularly subtriangularOvateInequilateral, quadrateUmbo position1/2 of shell length1/4 of shell length1/3 of shell lengthUmbo sculptureFeebly wavy wrinklesRippledAngularly wrinkledSurface sculptureConcentric ridgesConcentric ridgesIrregular growth linesNacre colourReddishMilk-whiteBluishPosterior slopeSharpBluntBluntVentral marginNearly straightArc-shapedLong and straight