Horchs

Horchs is a genus of small, nocturnal arboreal marsupials native to the mangrove and lowland forests of the fictional Leth Archipelago. Described in 2010 by zoologist Amara Qiu, the genus currently has two described species: Horchs nocturnus and Horchs littoralis. Adults reach 22–26 cm in body length and weigh about 180–230 g; they have dense gray-brown fur, a slender snout, and a long prehensile tail used for climbing. Diagnostic traits include a facial mask and enlarged incisors, though genetic data are used for confirmation.

They inhabit mangrove creeks, primary and secondary lowland forests, up to 400 meters elevation. They are mostly nocturnal and solitary, or seen in mother–offspring groups; they roost in tree hollows or dense foliage. Their diet is omnivorous, including nectar, fruit, and small invertebrates, and they can act as seed dispersers for several plant species.

Reproduction occurs seasonally with a single young per birth; gestation lasts about 28–34 days, with the young remaining in the pouch for several weeks. Threats include deforestation, habitat fragmentation, and invasive predators. As a result, Horchs are labeled Vulnerable in local assessments, with protected areas and monitoring programs in place. Etymology derives from a local term for night wanderer, reflecting their habits.