Figure 15 in Litthabitellidae: a new family of the Truncatelloidea (Mollusca: Caenogastropoda)

Figure 15. Principal component analysis of the measured shells of Litthabitella. The shell measurements are also shown. Abbreviations: a, shell height; b, body whorl breadth; c, aperture height; d, spire height; e, aperture breadth; α, apex angle measured between the lines tangential to the spire; β, angle between the body whorl suture and the line perpendicular to the columella.