Diagnosis: Shell conical. Protoconch with levels I and II, with four nodulous spiral keels on the lower half, first protoconch whorl smooth. Teleoconch with strong spiral keel on the lower half and spiral cord below this keel, spire with whorls straight. Distinctive microsculpture of the grooves found in all teleconch whorls. Axial sculpture lacking. Base with five spiral cords. Aperture ovoid, outer lip thickened. Inner lip thin.

Shell: Conical, moderately solid, and about 1.64 mm long. Protoconch with 200pm height and 260pm width, protoconch I with 1.5 whorls and protoconch II with 2.0 whorls, with four nodulous spiral keels on the lower half, first protoconch whorl smooth, changing ornamentation pattern to 4-5 spiral cordlets. From the upper keel about 34 irregular riblets rise toward the bottom keel, not touching it or blending with the very weak riblets that issue from it. The same sculpture occurs between the bottom keel and the suture. The protoconch profile is pagoda-shaped. Teleoconch with about 4.5 whorls, spire with whorls straight, strong spiral keel on the lower half, and a spiral cord below this keel. Microsculpture of the grooves in all teleconch whorls. Axial sculpture lacking. Base with five spiral cords rounded with same expression in the same way. Aperture ovoid, strongly opisthocline, outer lip thickened. Inner lip thin. A small chink-like umbilicus is present. Operculum, radula, and soft parts unknown.
Measurements: Holotype - Length 1.88 mm, width 0.82 mm.

The genus Chrystella was established in 1956 by Laseron, to describe Chrystella islandica from the Indian Ocean. In the western Atlantic Ocean, this genus is only represented by Chrystella katyae Rolan, Espinosa & Fernandez-Garces, 1990 from Cuba. It resembles Chrystella multistriata n. sp. in some aspects of the sculpture of the shell. C. multistriata n. sp. is a species found in a region rarely studied in the northeast of Brazil. It differs from C. katyae in the dimensions of its protoconch, with about 179pm in second whorl and 246 µm in the final whorl of the protoconch. The species described from Cuba (C. katyae) is about 230 µm in the second whorl and 365 µm in the final whorl of the protoconch, C. multistriata n. sp. also differs by the presence of 1/4 more of whorl in total, in teleoconch sculpture (the central spiral keel is more distant from half of whorl), and the ovoid shape of the aperture, while in C. katyae it is circular. The microsculpture of C. multistriata is also stronger. Chrystella multistriata is placed in the genus by having spiral rib sculpture, a strong peripheral keel, an ovoid aperture, and a thick reflected lip. These features are observed only in genus Chrystella within the Pickworthiidae.
Currently, in the southeast Atlantic the genus Chrystella is restricted to the continental slope of the Brazilian coast. This genus may also occur in shallow waters in the southern Atlantic because C. katyae occurs in shallow water in the northwest Atlantic.