Boaedon olivaceus

Eli Greenbaum and colleagues described the taxonomy of this species as being "relatively stable for over a century".[5] Auguste Duméril described this species in 1856, making it the type species of his newly-circumscribed genus Holuropholis. Charles Eugène Aubry-Lecomte collected the holotype.[2] The junior synonym Boodon poensis was described by Albert Günther in 1888,.[3] George Albert Boulenger synonymized the two species, classifying it in the genus Boodon.[4][5] Arthur Loveridge classified it in the genus Boaedon in 1957.[6]

In 1974, M. C. Stucki-Stirn described a subspecies B. olivaceus stirnensis, but it was synonymized with the species itself in 2014.[5]

The type locality of this species is Gabon,[2] and the type locality of its junior synonym B. poensis is Bioko.[3]

It is found in Central and West and East Africa.[5] Countries it has been recorded in include: the Democratic Republic of the Congo,[7] Central African Republic,[8] Gabon,[9] Guinea,[10] and Togo.[11]

It is found in and near rainforests.[5]

Its total length is 850 mm (33 in). It has small eyes,[12] which can be orange, red, or reddish-brown. Its dorsum is glossy and colored dark gray or a dark, greyish-brown.[5]