Chaetotaxy of Psilotrema spiculigerum (Mühling, 1898) Odhner, 1913 (Trematoda: Psilostomatidae) cercariae.

The chaetotaxy of P. spiculigerum mature cercariae was studied. Unlike from the known in the literature up to now, the chaetotaxy of the cercariae was complemented as follows: a - the number and arrangement of the papillae on the dorsal, ventral and lateral surface of the body were first described; b - the arrangement of the papillae on the cephalic region and tail was corrected.