Chaetotaxy of Psilotrema spiculigerum

Abstract

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 com plemented as follows : a-the number and arrangement of the papillae on the dorsal, ventral and lateral sur face of the body were first described ; b-the arrangement of the papillae on the cephalic region and tail was corrected. Chaétotaxie des cercaires de Psilolrema spiculigerum (Mühling, 1898) Odhner, 1913 (Trematoda, Psilostomatidae).