Christinus guentheri is a species of lizard in the family Gekkonidae (geckos). The species is endemic to two Australian islands, Norfolk Island and Lord Howe Island.

Common names

C. guentheri has the common names Günther's island gecko, Lord Howe Island gecko, and Lord Howe Island southern gecko.

Taxonomy

The first description of C. guentheri was by Belgian-born British herpetologist George Albert Boulenger, in 1885, as Phyllodactylus guentheri.

Etymology

The specific epithet, guentheri, commemorates German-born British zoologist Albert Günther.

Habitat

The preferred natural habitats of C. guentheri are forest and rocky areas.

Behavior

C. guentheri is terrestrial, arboreal, and saxicolous (rock-dwelling).

Reproduction

C. guentheri is oviparous. Each adult female lays a single egg, in a communal oviposition site, which may be in a root system, a rock crevice, or a cave.

Conservation status

C. guentheri is listed as vulnerable by the IUCN, and by the Australian government's EPBC act.