The head of E. bibronii is somewhat flattened. The lower eyelid has a transparent disk. The scales on the dorsum and flanks are sharp, numbering 5–7. The scale rows at midbody number 28–30. There are 14–20 lamellae under the fourth toe. The dorsum is olive brown, with a light vertebral stripe which is dark-edged. A dark dorso-lateral stripe runs from the eye to the base of the tail.