Family Mangeliidae

Shell size to 12 mm; shell fusiform, somewhat similar to Stellatoma stellata (Stearns, 1872), but with body whorl comprising about half of shell length and whorls not strongly shouldered. Sculpture of about 15 axial ribs crossed by fine spiral threads, and the shell surface has a frosty aspect. Color white to, very rarely, light-tan.

Shell size to 10 mm; shell turreted, with distinctly shouldered whorls. Spire high, occupying about 2/3 of shell length. Sculpture of about 11 axial ribs per whorl, with fine spiral striations between ribs. Color yellow to brown.

Shell size to 10 mm; shell biconical. Periphery angled. Sculpture of 7-10 axial ribs crossed by numerous fine spiral striations. Aperture comprising 1/2 of shell length. Color white with reddish-brown spiral band. Similar to K. rubella (Kurtz & Stimpson, 1851) from eastern Florida, from which it differs by being a stouter shell, with a shorter spire.

Shell size to 6 mm; shell ovate-fusiform. Spire about half shell length. Sculpture of 11-12 strong axial ribs crossed by about 5-6 spiral cords. Aperture with strong indentation on inner side of outer lip. Color light-brown to reddish-brown.

Shell size to 10 mm; shell ovate-fusiform, spire about half shell length. Sculpture of about 8-12 rounded axial ribs. Ribs convex above periphery but straighter below it. Aperture elongate, with strong indentation on inner part of outer lip. Anterior canal short. Color brown to grayish-brown with light gray periostracum showing mostly between ribs. The shell illustrated was collected by William C. Brumbach in 1996, on Sanibel.

Size to 7 The elongate shell has a sculpture of about 10-12 axial ribs that span the entire whorl, each rib abutting the ones in previous whorls. The ribs are crossed by finer spiral cordlets. The shell color in this species is very distinctive, with each half-whorl divided into an anterior brown part and posterior cream-colored one. This worn shell was found by Lois Dunnam on Gulfside City Park Beach ("Algiers" Beach), Sanibel, in 1996.

Shell size to 9.5 The shell sculpture in this species comprises about 8-9 ribs on early whorls that increase in number to 14-15 on the last whorl of adult individuals. The microsculpture consists of fine spiral cords crossed by axial grooves; the intersections form little beads that impart a frosty appearance to the shell surface. The shell may be cream-colored, often with a combination of spiral light-orange spiral bands. The shell in the image was collected by Lois Dunnam on Gulfside City Park Beach, on Sanibel, in 1996.

Shell size to 9 mm; shell with about 7-8 whorls, keeled at shoulder, with ten or eight smooth axial ribs and fine spiral striations, protoconch paucispiral. Aperture and short anterior canal oblique. Shell white, with columella, suture, and sometimes outer lip, dark-brown or reddish-brown. Operculum absent.

Shell size to 5 mm; shell fusiform, spire about half shell length. Sculpture of about 6-9 narrow but strong axial ribs. Rib interspaces twice as wide as ribs. Ribs form angles at periphery, angles stronger on earlier whorls. Aperture elongate. Anterior canal short. Color whitish with one broad reddish-brown band on anterior part of each whorl, two bands on last whorl.

Shell to 12 The slender shell has a sculpture consisting of 6-8 well-marked axial ribs. Rib may form a "peak" in the middle of each whorl, where the whorl is wider. The shell is relatively abundant off the East Coast of Florida, but is also present in the Gulf of Mexico. The shell is usually white, but may present reddish-brown hues, mostly at the anterior end. The shells in the illustrations were both collected by Herb Chapin on Sanibel Island. The supplementary illustration shows a juvenile shell.