A sample of images from the MZB Families Key

01. Argulidae - habitus ventral....................................................... 02. Pectinatellidae - statoblast lll ............................................... 03. Clavidae - polyp, tentacles lllllllllllllll ........................................ 04. Gammaridae - habitus lateral .......l........................................ 05. Aeshnidae (larvae) - head fronto-lateral .................................... 06. Hydrachnidae - genital field llllllllllllllllllllllllllllllllll ............................ 07. Chaoboridae (larvae) - head lateral ............................................ 08. Triopsidae - phyllopod ........lll............................................... 09. Hirudinidae - pharyngeal teeth lllllllllllllllllllll ................................ 10. Blephariceridae (larvae) - anterior body ventral............................ 11. Artemiidae - anterior body ventral llllllllllllllllllllllll .......................... 12. Nepidae (adult) - foreleg llllllllllllllllllllllllllll .................................... 13. Palingeniidae (larvae) - head dorsal......................................... 14. Limnadiidae - habitus lateral ..lllllllllllll........................................ 15. Melanopsidae - shell frontal, aperture ......................................... 16. Cambaridae - anterior body lateral ...lllllllllllllllllllllllllll...................... 17. Hydryphantidae - anterior body frontal ..........lllll...................... 18. Lestidae (larvae) - labial palp .............lllll............................... 19. Tubificidae - palmate chaetae ................................................ 20. Prosopistomatidae - habitus ventral