Unraveling the Phylogenetic Relationships and Taxonomic Status of a Puzzling Freshwater Mussel Genus Inversidens (Bivalvia, Unionidae) through Multilocus Phylogeny and Mitochondrial Phylogenomics

Figure 3

Anatomical features of Inversidens rentianensis with left valve remove. (a) Overall anatomical diagram of Inversidens rentianensis; (b–e) close-up of apertures, anal opening, and labial palps. Abbreviations: aam: anterior adductor muscle; pam: posterior adductor muscle; exa: excurrent aperture; ia: incurrent aperture; f: foot; ig: inner gill; og: outer gill; ao: anal opening; lp: labial palps; m: mantle; p ia: papillae in incurrent aperture; pg exa: pigmentation of excurrent aperture. Scale of (a) is 5 mm, and scale of (b–e) is 1 mm.

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