Calumma gehringi: A Hidden Jewel of Northern Madagascar

Calumma gehringi is a recently described Malagasy chameleon, endemic to the Tsaratanana Massif and surrounding Bealanana District in northern Madagascar, occurring between 730–1540 m elevation. It was formally recognized in 2017 after taxonomic revision of the Calumma guibei complex. The species is oviparous, with its holotype collected at Antsahan'i Ledy (1207 m). According to the Reptile Database, it is closely allied to C. guibei and C. linotum. The IUCN currently lists C. gehringi as Data Deficient, reflecting limited field information. Coloration is typically green to turquoise with subtle patterning, shifting rapidly under stress to darker tones, aiding camouflage.

Calumma gehringi was named in honor of the distinguished herpetologist Philip Gehring, whose expertise in Madagascar's reptiles—particularly the leaf‑tailed geckos (Uroplatus)—has led to the discovery and description of numerous new species. His contributions to taxonomy, field research, and the understanding of Madagascar's unique herpetofauna are widely recognized, and the naming of this chameleon pays tribute to his lasting impact on the study of island biodiversity.