Map of the mitochondrial genome of Cylindrus obtusus (GenBank accession nr. JN107636). Genes on the outer circle are transcribed clockwise; genes on the inner circle are transcribed counterclockwise. TRNAs are denoted by their one-letter abbreviations. Regions I, II and III are regions that could not be assigned to any mitochondrial gene; Region III could be the most likely location for the mitochondrial control region (see Discussion).