Shell small, stout, blunt-tipped, yellowish white, of four and a half whorls ; nucleus large, white, shining, smooth, and naticoid, of one and a half whorls ; transverse sculpture of numerous (on the last whorl twenty-one) straight sub-equal plications with about equal interspaces, beginning at the suture, passing clear over the whorl, and fading out only when near the canal ; also faint lines of growth ; spiral sculpture of numerous equal fine rounded threads (twenty-one on the last turn) with slightly wider interspaces, covering the whole shell except the nucleus ; pillar short, stout, a little concave, with a slight callus ; outer lip somewhat thickened, smooth ; canal wide, short, but distinct; sutures distinct. Lon. of shell, 4.0 ; of last whorl, 3.0 ; of aperture, 2.0. Max. lat. of shell, 2.0; of aperture, 1.0 mm.
Yucatan Strait, 640 fms.
This stout and prettily reticulated little shell has almost the form of amphissa versicolor Dall, from California, though of course on a very diminutive scale ; the character of the sculpture is also not dissimilar. The nearest West Indian species to it is Columbella hotessieriana D'Orbigny, which has a toothed aperture, one more whorl, an acute spire, and different color. It is not unlike C. costulata Cantraine as figured by Sars, but has a proportionately shorter spire, fewer whorls, more numerous plications, and is of about one ninth the size. By some authors this species would be referred to Anachis.

Shell minute, thin, white, with an inflated smooth nucleus of one and three subsequent whorls; suture distinct, not deep, whorls well rounded; spiral sculpture variable, obsolete on some specimens and quite evident on others, composed of very fine equal spiral striae; axial sculpture also variable in strength, when best developed (as in the specimen selected as type), there are on the last whorl about 24 fine sharp slightly flexous riblets, obsolete beyond the periphery, with narrower interspaces; aperture subovate, outer lip slightly thickened, simple; body with a coat of enamel; pillar short, canal short but sharply recurved. Length of shell, 4.5; of aperture, 2.5; diameter, 2 mm. U. S. Nat. Mus. Cat. No. 108323.
Off Georgia, abundant.

Yucatan Strait