Solariella plicatula: Shell small, orbicular, widely umbilicate, thin and fragile, whitish with radiate purplish streaks, longitudinally plicate above, and spirally ribbed. Sculpture: There are rather distant oblique radiate plications extending on the body-whorl to the periphery only ; these, as well as the interspaces, arc very finely longitudinally striate. On approaching the umbilicus equidistant straight broad and flat riblets are formed, slightly beading the revolving cords. The penultimate whorl has 2 spiral ridges close together, flatly beaded by the radiate plications, and 2 some distance down toward the suture. On the last whorl are 2 spiral cords, somewhat removed from the suture, followed by a smooth interstice and 3 spiral ridges with grooves of their own width between them ; 5 narrower cords follow from the periphery to the umbilicus, the grooves between which are first narrow, then getting broader ; there is a double beaded ridge margining the umbilicus. Colour whitish, with irregular radiate zigzag bands of purple. Spire low, with a blunt apex. Protoconch smooth, rather large, depressed globular, yellowish, of 1 whorl. Whorls 3,5, shouldered, convex at the periphery ; base flatly convex. Suture subcanaliculate. Aperture subcircular, very little excavated above, the margins approaching and nearly meeting, slightly nacreous within. Outer lip sharp, convex. Inner lip forming a very thin layer over the penultimate whorl. Columella regularly arched, slightly reflexed, produced at the base on joining the carina of the umbilicus. The latter is wide, carinate, perspective, with spiral ridges and longitudinal plications on the last whorl. Diameter: Maj., 4,5 mm. ; min., 3,8 mm. : height, 3 mm.

Shell small, orbicular, widely umbilicate, thin and fragile, whitish with radiate purplish streaks, longitudinally plicate above, and spirally ribbed. Sculpture: There are rather distant oblique radiate plications extending on the body-whorl to the periphery only ; these, as well as the interspaces, are very finely longitudinally striate. On approaching the umbilicus equidistant straight broad and flat riblets are formed, slightly beading the revolving cords. The penultimate whorl has 2 spiral ridges close together, flatly beaded by the radiate plications, and 2 some distance down toward the suture. On the last whorl are 2 spiral cords, somewhat removed from the suture, followed by a smooth interstice and 3 spiral ridges with grooves of their own width between them ; 5 narrower cords follow from the periphery to the umbilicus, the grooves between which are first narrow, then getting broader ; there is a double beaded ridge margining the umbilicus. Colour whitish, with irregular radiate zigzag bands of purple. Spire low, with a blunt apex. Protoconch: smooth, rather large, depressed globular, yellowish, of 1 whorl. Whorls 3,5 , shouldered, convex at the periphery ; base flatly convex. Suture subcanaliculate. Aperture subcircular, very little excavated above, the margins approaching and nearly meeting, slightly nacreous within. Outer lip sharp, convex. Inner lip forming a very thin layer over the penultimate whorl. Columella regularly arched, slightly reflexed, produced at the base on joining the carina of the umbilicus. The latter is wide, carinate, perspective, with spiral ridges and longitudinal plications on the last whorl. Diameter: Maj., 4,5 mm. ; min., 3,8 mm. : height, 3 mm. Type in the Dominion Museum, Wellington.
Hab: New Zealand. Off Cuvier Island, in 37 fathoms, type (Captain Bollons) ; off Great Barrier Island, in 110 fathoms.

Solariella plicatula: New Zealand. Habitat: —Off Cuvier Island, in 37 fathoms, type ; off Great Barrier Island, in 110 fathoms.