Shell small, robust, formed by about 3,5 whorls of rapid growth, with a moderately depressed spire, with two thick carinae angling the shell; umbilicus broad and deep.
The protoconch is at a higher level than the rest of the shell, measuring between 280-310 µm having 1,25 whorls and two distinct phases, the first totally smooth and the second with some thick tubercles that are concentrated closer to the suture; it ends with a clear change of sculpture. The teleoconch has about 2,25 whorls, and two carinae, one peripheral and the other basal, which angle the shell which is completely covered by spiral cords, with thick axial ribs on the periphery and thick axial folds at the base. In the 1,25 first whorls there are 5 not very prominent spiral cords that develop in a zigzag pattern forming rhomboid cells in their interspaces; later the cords are multiplied, and at each point of intersection with the axial striae a small nodule is formed. In the spaces between cords microtubercles are not to be observed; instead there is a network of lines that criss-cross. On the adapical part, the spiral cords predominate, and appear as granular from the first whorl of the teleoconch due to the interference with axial striae. More than 25-30 may be observed on the last whorl. In the area close to the peripheral carina there are fine axial ribs that predominate on the spiral cords.
The space between the peripheral and the basal carinae is slightly concave and presents 7-10 fine spiral cords intersected by marked axial ribs. Base slightly convex, totally covered with fine spiral cordlets. There are 20-21 thick axial folds and a cord that limits and marks an angle with the umbilicus. Aperture triangular; parietal area covered by a thick callus; columella angled, very thick and reflected towards the umbilicus; outer lip thick, margin unchanged by the spiral cords, but modified by the peripheral carina expanding it laterally, forming two internal angles at the point of contact with the carina. Umbilicus wide and deep, delimited by 2 thick spiral cords; the cord located inside is definitely thickened near the inner lip and marks the beginning of the columella; the more external cord, located on the base, circumscribes the umbilicus, marks the end of the columella and is formed by the angulation of the axial folds. The umbilical wall is slightly concave and on it, a completely smooth area in the space between the cords is observed. Dimensions: the holotype is 2.24 mm in diameter; the other shell studied is 1.93 mm.

Anticlimax fecunda spec. nov. may be differentiated from A. robusta spec. nov. by the larger size of the protoconch and by lacking ornamentation on phase 1 of the protoconch.
From Anticlimax infaceta spec, nov., it is differentiated by the different orna-mentation of phase 2 of the protoconch and by the lack of spirally aligned cells in the teleoconch.

Only known from the type locality in New Caledonia, and from NW Tutuba Island, Vanuatu. Between 25 and 100 m. The holotype was collected in the infralittoral, living between 20-25 m, on a bottom of rounded corals (called "patates") close to an area of sediment. Conversely, the shell from Vanuatu was collected deeper, in the circalittoral, dredged at 100 m depth.