Bacillary band ultrastructure of the fish parasite Capillaria pterophylli (Nematoda: Capillariidae)

In Capillaria pterophylli Heinze, 1933, two lateral bacillary bands extend along the whole body in female and male worms. A ventral bacillary band is present in females only. The bacillary bands consist of glandular and non-glandular cells, in the region between the nerve ring and the end of the stichosome, ciliated sense receptors in tight connection with gland are present.