Somatic metaphase of Phractocephalus hemioliopterus after C-banding. Arrowheads indicate the chromosome pair with interstitial heterochromatin; arrows indicate the NOR-bearing chromosome and asterisks indicate the chromosomes with heterochromatin blocks in both terminal regions.

 
 
  Part of: Swarça AC, Dias AL, Fenocchio AS (2017) Cytogenetic studies in the redtail catfish, Phractocephalus hemioliopterus (Bloch & Schneider, 1801) (Siluriformes, Pimelodidae) a giant fish from Amazon basin. Comparative Cytogenetics 11(1): 119-128. https://doi.org/10.3897/CompCytogen.v11i1.11152