Systematics and distribution of Cristaria plicata (Bivalvia, Unionidae) from the Russian Far East.

ABSTRACT: The number of anodontine bivalve species placed in the genus Cristaria (Bivalvia, Unionidae) from the Russian Far East is still not stable among authors. Some recognize only one valid species Cristaria plicata (Leach, 1815) while others accept two additional species, Cristaria tuberculata Schumacher, 1817 and Cristaria herculea (Middendorff, 1847). In the present study, these taxonomic doubts are addressed using analyses of mitochondrial DNA sequences and shell morphometry. No significant differences have been revealed by the COI DNA sequences or the main statistical morphometric indices from the three Cristaria forms. In the specimens analysed, changes in shell morphometry with age suggest that original descriptions of the different forms may be attributed solely to differences in age and

SUBMITTER: Klishko OK 

PROVIDER: S-EPMC4829948 | biostudies-literature | 2016

REPOSITORIES: biostudies-literature