[1][3] It is endemic to Batu Linanit in Mount Murud in Sarawak, Borneo.

[1][4][3] Pelophryne linanitensis is a mid-sized species within its genus: adult males measure 18–19 mm (0.7–0.7 in) in snout–vent length;[2] females are unknown.

The fingers are extremely short and stout, and with extensively webbed.

[4] The type series was collected from rhododendron forest at the wind-swept summit of Batu Linanit at 2,250 m (7,380 ft) above sea level.

[1][2][4] The larval habitat is unknown but could be Nepenthes pitchers, near which the males were found.