[3] The specific name, boylei, is in honor of "A. M. Boyle, Esq.
[2] Indigenous to southern Africa, R. boylei is found from Damaraland in Namibia to western Botswana.
[3] Dorsally, R. boylei is olive-brown, the scales light-edged.
Adults may attain a snout-vent length (SVL) of 22 cm (8+1⁄2 in).
[3] The preferred natural habitat of R. boylei is sandveld,[3] at altitudes of 1,000–1,400 m (3,300–4,600 ft).