Cercaria of trematodes of freshwater mollusc Melanopsis praemorsa from Azerbaijan. 2. Morphology and chaetotaxy of two new virgulid cercaria (Plagiorchiida, Lecithodendroidea)

Pictures, descriptions of the morphology (including chaetotaxies), and a differential diagnosis of two new species of lecithodendroid cercaria, Cercaria agstaphensis 20 and C. agstaphensis 28 are presented. Special attention is paid to the structure of glandular apparatus, excretory system, armament of the tegument, and other individual features of stylet cercaria.