The nearly complete mitochondrial genome of the door snail <i>Euphaedusa aculus</i> (Stylommatophora: Clausiliidae) and phylogenetic analysis

The family Clausiliidae was proposed as a model for studying the diversity of breeding biology in land snails. This study assembled a nearly complete mitogenome (15,417 bp) for the clausiliid snail <i>Euphaedusa aculus</i>. The mitogenome includes 13 protein-coding genes (PCGs), two ribosomal RNAs, and 22 transfer RNAs, with a gene order consistent with other clausiliids. Most PCGs use ATN start codons and complete stop codons, except for <i>atp6, nad4</i>, and <i>nad5</i>, which start with TTG, and <i>atp6, cox3</i>, and <i>nad3</i>, which have incomplete stop codons. Phylogenetic analyses revealed that <i>E. aculus</i> is closely related to <i>E. planostriata</i>. This mitogenome provides a valuable molecular resource for future evolutionary research on land snails.