11. The parastomal bars are long, thin structures, fused to the tentoropharyngeal sclerite . 12. Scleritomes of Early Cambrian halkieriids have many more palmate and cultrate than siculate sclerites . 13. In insects, the sterna are usually single, large sclerites , and external. 14. There are no visible growth lines of conchiolin in cross-sections of sclerites . 15. Hardened plates in the exoskeleton are called sclerites . 16. With this reversal, the female is able to discriminate between males gentalic sclerite . 17. Kritsky, Bakenhaster & Adams, 2015 in the comparative morphology of their vaginal sclerites . 18. The expansion of the haematochodae then causes the various sclerites to brace with one another. 19. The first axillary sclerite ( lAx ) is the anterior hinge plate of the wing base. 20. Inserting directly behind this sclerite , on the head shield proper, are two stout antennae.
