Tachymenoides affinis, also known commonly as Boulenger's slender snake, is a species of snake in the subfamily Dipsadinae of the family Colubridae. The species is endemic to Peru.

Taxonomy and etymology The species was first described in 1896, as Tachymenis affinis, by Belgian-British zoologist George Albert Boulenger, who is commemorated in the common name. (Tachymenis affinis, p. 54).

Habitat The natural habitats of Tachymenoides affinis are forest, shrubland, and grassland, at elevations of .

Description Tachymenoides affinis may attain a snout-to-vent length (SVL) of .

Reproduction Tachymenoides affinis is ovoviviparous.

References

Further reading

xii + 727 pp. + Plates I–XXV. (Tachymenis affinis, new species, p. 119 + Plate VII, figure 1, three views). 208 pp. (Tachymenis affinis, p. 96). ( in German). (Tachymenoides affinis, new combination).