[Structure of scolex hooks and genosystematics of Triaenophorus nodulosus (Cestoda: pseudophyllidea) from the Baikal lake].

Data on a hook morphology (in plerocercoid and mature helminths) and gene systematics of Triaenophorus nodulosus from the Baikal Lake are presented for the first time. Sequence analysis of rDNA fragments (5'-end portion of 18S rDNA) yelded 562 nucleotid positions.