"Cylindroconic, costate, costae not extending into shell, margin thick, 0.03 or more; not lobed; lower tooth, thin, not very long; color white, brown within, lower tooth double] Smaller, 1.08 by .45 [inches; 30.5 by 11.4 mm]; frontal bar well developed: costae thin, 22, about as wide as interspaces. Hog Key near Morgan's Bluff. Not common on palms and bushes. 60 [specimens examined].. Plate 30, figs. 3, 4." (Maynard and Clapp in Maynard, 1921a:132-133).