Osteology of the skull of the blind snake Helminthophis flavoterminatus (Peters, 1857) (Serpentes, Anomalepididae)

Abstract

The blind snake Helminthophis flavoterminatus (Peters, 1857) is a species of Anomalepididae with distribution throughout northwestern Venezuela and western Colombia. Its osteology is poorly known, and thus this study presents information on its skull structure based on High-Resolution X-Ray Computed Tomography. The absence of the supraoccipital bone can be used for the determination of H. flavoterminatus in relation to its congeners, Helminthophis frontalis (Peters, 1860) and Helminthophis praeocularis Amaral, 1924.