Tacitidae

Tacitidae is a small family of nocturnal, arboreal mammals native to the Tacite Archipelago and nearby mainland forests. The family comprises three extant genera—Tacita, Silvatia, and Murata—with six described species. They inhabit the forest understory and are most active after dusk, foraging a mixed diet that includes fruits, seeds, invertebrates, and occasionally small vertebrates.

Morphology is characterized by a compact body, medium-length limbs, and a dense, soft pelage. Most species measure 12–28 cm in body length, with tails of similar length; in some species the tail is prehensile. Claws are curved for climbing, and facial whiskers are highly developed. The dentition is adapted to an omnivorous diet, with grinding molars suited for plant material and sharper teeth for animal prey.

Ecology and behavior: Tacitidae individuals are typically solitary or occur in pair-bonded social arrangements during breeding. They communicate with soft vocalizations and scent marking. Reproduction is seasonal; gestation lasts about 40–45 days, yielding one or two altricial young. Juveniles remain with parents for several months before dispersing and achieving independence. Territoriality and foraging ranges vary by genus and habitat density.

Taxonomy and evolution: Tacitidae was first described in 1987 by field biologist P. R. Navas. It is placed within the order Tacitiformes, but phylogenetic relationships to other placental mammal groups remain unresolved, with molecular data limited and subject to revision.

Etymology and conservation: The name Tacitidae derives from tacitus, Latin for silent, in reference to the nocturnal habits of its members. Several species face habitat loss from logging and wildfires; conservation efforts emphasize forest protection and habitat restoration.