Shell solid, broadly fusiform with a moderate high spire. Protoconch with 1,5 whorls, sharply pointed and about 0.5 mm in maximum diameter, apparently smooth but with spiral micro striae and usually coloured with brown and whitish bands. Teleoconch of 4,5 slightly convex whorls, with a distinct suture and a very small subsutural shelf. Sculpture formed by axial ribs, badly defined subsuturally, a little irregular, with variable interspaces, about 20 in the two first whorls; in the last whorl, about 15-19 can be observed, but on the last quarter of the whorls, they are almost entirely faded. There are no clear spiral threads, but under high magnification numerous micro striae can be seen: about 10 on first whorl, 13-15 on the second and about 24-28 on the third. Towards the base about 12-13 well marked striae form evident cords. Aperture narrow and axially elongate, usually with 6 teeth on the inner part of the external lip, the upper ones being larger. Columella curved, S-shaped, with 2 denticles usually almost unnoticeable. Shell colour brownish with a pattern of numerous ocellae which are a little larger below the suture, mainly on the last quarter of the shell. Soft parts, operculum and radula unknown. The holotype is 5.0 mm; the largest paratype reaches 6.0 mm.

The differences with previously known species are as follows:
* Anachis crispidata (Marrat, 1877) has a larger (about 7-8 mm) shell, the coloura-tion is very variable, the ocellated pattern very uncommon. Known from Senegal.
* Anachis avaroides Nordsieck, 1975 has a larger and wider shell, variable in colouration but usually lacking an ocel-lated pattern; the axial ribs are not numerous, and it lacks spiral sculpture. It is known from the Azores, Madeira, Selvagem Islands and Canaries.
* Anachis valledori Rolan & Luque, 2002 has a smaller and narrower shell, narrow and elongate axial ribs, variable but not ocellated colouration. Endemic to Cape Verde Islands.
* Anachis ryalli Rolan, 2005 has a larger and narrower shell, of uniform tan color, the protoconch is more elevated, spiral threads only noticeable in the intervals. Collected in Ghana.
* Anachis delamarrei Rolan & Boyer, 2006 has a smaller shell, protoconch with more whorls, fewer axial ribs and it lacks spiral sculpture. Colour uniformly dark brown. Known from Gabon.
* Anachis delineata Rolan & de Oliveira, 2008 has a larger shell, with few axial ribs; the colouration comprises bands with an ocellated pattern alternating with others with white blotches. Known from the Cape Verde Islands.
* Anachis juani Horro & Rolan, 2010 has a shell with strong axial sculpture but fewer ribs; the spiral cords are strong, about 20 on the last whorl; it lacks an ocellated pattern and has a light band on the last whorl. It is from Angola.
Mitrella annobonensis Rolan, 2005 is rather similar, having less axial sculpture, less white spots, 1/4 shorter protoconch with different microsculpture (see ROLAN, 2005: fig. 138-139). Perhaps this species, due to its axial ribs, could be placed in Anachis better than in Mitrella.

Only known from Principe Island.