Scanning electronic micrographs of Parasphaerosyllis irregulata sp. nov. (paratype UANL 8160). A Anterior end, dorsal view, arrows point to insertion scars of dorsal cirri; B Prostomium and first anterior segments, dorsal view; C Alternated bulbous and moniliform dorsal cirri from mid-body region; D Posterior segments showing different development stages of bulbous dorsal cirri; E Bulbous dorsal cirrus showing dorsal band of several lines of pores; F Detail of ciliate pores on bulbous dorsal cirrus. Scale bars: A, B = 0.5 mm; C, D = 50 µm; F = 5 µm.

  
  Part of: Góngora-Garza G, Tovar-Hernández MA, de León-González JA (2024) Re-description of Parasphaerosyllis indica Monro, 1937 (Annelida, Syllidae), with the establishment of a new species from western Mexico. Biodiversity Data Journal 12: e116082. https://doi.org/10.3897/BDJ.12.e116082