Trematods Fauna of the Freshwater Mollusc Melanopsis Praemorsa (L., 1758) from Water Bodies of Azerbaijan. Morphology of Virgules Cercaria - Cercaria Agstaphensis 32 (Trematoda: Lecithodendroidea)

The pictures, descriptions of morphology including drawings and differential diagnosis of closely related species of virgules cercaria - Cercaria agstaphensis 32 from water bodies of Azerbaijan are provided. Attention is paid to peculiarities of armature, glandular apparatus, excretory and digestive systems, inclusions of parenchyma and other systems of cercaria, belonging to larvae of the super family Lecithodendroidea