Amphidromus furcillatus is a species of medium-sized air-breathing tree snail, an arboreal gastropod mollusk in the family Camaenidae.
The length of the shell attains 35 mm, its diameter 18.2 mm.
The sinistral shell is long-conic, subperforate, smooth, and glossy. It exhibits a buff-white base color with grayish-brown flames. Comprising seven a little convex and regularly increasing whorls, the shell features a black tip at the apex. The body whorl measures two-fifths of the total length and appears uniform or spirally two-banded below, while being flammulated above with flames that bifurcate or trifurcate before disappearing at the suture. The aperture is ovate and white, showing the bands through it; the parietal wall is yellowish. The peristome is thin, reflexed, and white, joining the straight and slender columella at an angle, nearly covering the perforation.
This species lives in trees.
The type locality of this species is Java, Indonesia.