A new tapeworm from the Amazon, Amazotaenia yvettae gen. n., sp. n., (Eucestoda: Proteocephalidea) from the siluriform fishes Brachyplatystoma filamentosum and B. vaillanti (Pimelodidae)

Abstract

A new tapeworm from the Amazon, Amazotaenia yvettae gen. n., sp. n., (Eucestoda: Proteocephalidea) from the siluriform fishes Brachyplaty stoma filamentosum and B. vaillanti (Pimelodidae). -Amazotaenia yvettae gen. n. and sp. n. (Proteocephalidea, Monticelliidae, Peltidocotylinae) is described from the intestine of the black-backed filhote, Brachyplatystoma filamentosum and from the piramutaba, B. vaillanti (Siluriformes: Pimelodidae) from Itacoatiara, Amazonia State, Brazil. The new genus differs from all other members of Peltidocotylinae in the morphology of the scolex, position of the vitelline follicles grouped in two elongated patches in the equatorial part of the proglottis, a smaller size of the strobila (less than 3 mm), smaller number of proglottides and smaller number of testes.