It is known from a single protected town near the city of San Cristóbal de las Casas, in the mountains of Chiapas, which makes it one of the musaraches with the smallest distribution area of all America, calculated in a little more than 20 km2. It lives in the fog forest of that single town, a fragment of forest relatively well preserved within an ecological reserve, but surrounded by zones transformed by human activity.
Small-size musaraches, dark brown coat, long and mobile fox, and tiny eyes barely visible between the coat. It is confused with other musaraches from the Chiapas mountains, whose reliable separation requires cranial or genetic analysis; its exclusive presence in a single protected locality near San Cristóbal de las Casas is the most reliable reference to guide identification.
Minuscule footprint, just 1 cm, rarely visible except in very fine substratum. Minuscule, dark excrete, a few millimeters, with remains of insect cutlery, left scattered by paths under the damp leafstick of the fog forest where he lives. Build surface galleries under the leafstick and spherical nests in holes under fallen trunks.
Forest of mountain fog, with dense foliage soil, around 2700 m of altitude.Known from a single protected locality, the Huitepec Ecological Reserve, near San Cristóbal de las Casas, in the state of Chiapas, southeast of Mexico.
Insectívora, it feeds on insects and other invertebrates from the wet soil of the fog forest, captured thanks to a very accelerated metabolism.
Continuous activity distributed in short periods throughout the day and night due to its very accelerated metabolism, with a solitary and territorial behavior.
Its known distribution area, only 21 km2 and limited to a single town, places its populations in a situation of continued decline despite the fact that its only known habitat has formal protection as an ecological reserve.
Degradation of the fog forest around its only locality known for agricultural and urban pressure near San Cristóbal de las Casas, and the extreme geographical restriction of the species, which makes it vulnerable to any adverse local event.
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