Redescription of Apostolepis ambiniger (Peters, 1869) (Serpentes: Dipsadidae: Elapomorphini)

Apostolepis is a diverse genus of dipsadid snakes, currently comprising 34 species occurring in most cis-Andean South America. The taxonomy of the group is highly unstable. Upon discovering its type series, we redescribe the rare species A. ambiniger (Peters, 1869) and provide an account of its geographic distribution and morphological variation in pholidosis, osteology, and hemipenial characters. We also discuss some aspects of the taxonomy of Apostolepis.

Automated summary

Apostolepis is a diverse genus of snakes in South America, with a highly unstable taxonomy. Researchers have redescribed the rare species A. ambiniger, providing information on its geographic distribution and morphological variation, while also discussing taxonomy within the genus.