Barron who collected the first three specimens including the holotype.

[3] O. barroni is found in Cambodia, Laos, Thailand, and Vietnam.

[1] The preferred natural habitat of O. barroni is forest, at altitudes of 300–1,000 m (980–3,280 ft).

[1] O. barroni may attain a total length (including tail) of about 40 cm (16 in).

[2] O. barroni feeds predominantly on eggs of small skinks and of other reptiles.