Karyotypic variation in the long-whiskered catfish Pimelodus blochii Valenciennes, 1840 (Siluriformes, Pimelodidae) from the lower Tapajós, Amazonas and Trombetas Rivers


	Metaphases of Pimelodus blochii showing NOR by silver staining (left) and double FISH of 18S rDNA (green) and 5S rDNA (red) (right). Specimens from the Tapajós River (A, E); from the Lower Amazonas River at Santarém (B, F), at Almeirim (D, H); and from the Trombetas River (C, G). Scale bar: 10 μm.

Part of: Fonseca IC, Maciel LAM, Ribeiro FRV, Rodrigues LRR (2018) Karyotypic variation in the long-whiskered catfish Pimelodus blochii Valenciennes, 1840 (Siluriformes, Pimelodidae) from the lower Tapajós, Amazonas and Trombetas Rivers. Comparative Cytogenetics 12(3): 285-298. https://doi.org/10.3897/CompCytogen.v12i3.22590