Mesalina arnoldi is a species of sand-dwelling lizard in the family Lacertidae. The species is endemic to Yemen.
Etymology The specific name, arnoldi, is in honor of British herpetologist E. Nicholas "Nick" Arnold.
Habitat The preferred habitat of M. arnoldi is sparsely-vegetated rocky plateaus at elevations of .
References
Further reading Sindaco R, Simó-Riudalbas M, Sacchi R, Carranza S (2018). "Systematics of the Mesalina guttulata species complex (Squamata: Lacertidae) from Arabia with the description of two new species". Zootaxa 4429 (3): 513–547. (Mesalina arnoldi, new species).