Mitochondrial genome map of P. pearsei. Transfer RNA genes are depicted by their one letter amino acid code (L1: trnL(CUN), L2: trnL(UUR), S1: trnS(AGN), S2: trnS(UCN)). Numbers indicate non-coding nucleotide spacers between genes (positive values) or gene overlap (negative values). Arrows indicate orientation on (+)strand (clockwise) or (-)strand (counterclockwise). Grey shaded parts represent larger non-coding regions (>50 bp). Line drawing of P. pearsei by Peter Adam. Body lengths of the animal is 4.6 mm.