Molecular and cytogenetic data for Rhamphichthys Müller and Troschel, 1848 (Rhamphichthyidae - Gymnotiformes): Evidence of chromosomal differentiation in R. heleios, R. hahni, R. rostratus and R. pantherinus. - Costa MJRD; Silva PCD; Nagamachi CY; Ready WMBF; Ready JS; Pieczarka JC (Genetics and molecular biology, 2026)