Asulcate (above) and sulcate (below) views of the hemipenis of: A the holotype of Chironius dracomaris sp. nov. (MNRJ 27716) from Horto Florestal, Granja neighborhood, municipality of Pacoti, state of Ceará, Brazil; B Chironius bicarinatus (MNRJ 25558) from the municipality of Petrópolis, state of Rio de Janeiro, Brazil; C Chironius gouveai (MHNCI 12369) from the municipality of Candói, state of Paraná, Brazil. Scale bar = 5 mm.

  Part of: Sudré V, Andrade-Junior A, Folly M, Azevedo JAR, Ávila RW, Curcio FF, Nunes PMS, Passos P (2024) Revision of the Chironius bicarinatus complex (Serpentes: Colubridae): Redefined species boundaries and description of a new species. Vertebrate Zoology 74: 85-120.