Amalda danilai Kilburn, 1996

"Shell oblong-ovate-fusiform with moderately broad base, breadth/length 0.43-0.45, body whorl more or less evenly convex on both sides, greatest width of shell more or less median, aperture moderately large, aperture length/total length 0.48-0.52; spire cyrtoconoid with somewhat mamillate apex, spire angle about 44°, apical angle about 58°. Primary callus thick and enveloping entire spire except for protoconch, deeply impressed at final suture, surface of callus glossy, not microshagreened, but with 6 strong spiral ridges; secondary callus forms a pad covering entire right side of spire, with a narrow anterior extension reaching the false umbilicus. Aperture lanceolate, very bluntly rounded posteriorly, widest at about middle; outer lip in side view straight, very slightly prosocline, with a very blunt basal denticle; siphonal notch moderately deep, narrowly and asymmetrically U-shaped. Columellar pillar strongly twisted, its termination acute, with a very deep, inverted L-shaped basal notch; pleats 2-4, the innermost only slightly weaker than others, outermost separated by a slightly wider groove; microshagreen sculpture not visible. Anterior fasciolar groove fairly wide and deep for genus, continuing posteriorly to form a shallow false umbilicus posterior to midline of inner lip; inner lip evenly concave anteriorly, in parietal region becoming convex with 5 weak transverse pleats. Anterior fasciolar band convex, posterior fasciolar band flattened and slightly declivous, its posterior margin raised prominently above ancillid band and delimited by a deep furrow; ancillid groove moderately deep, its band very slightly rounded and declivous; median zone with fine growth lines only. Number of teleoconch whorls indeterminate. Protoconch conically-domed, of about 2,5 whorls (limit not clear), protoconch 1 small and depressed; breadth about 1.7 mm. Median zone greyish-white; callus deposits pure white, except for a deep brownish-orange blotch encircling apex (but not colouring protoconch), and a pale buff zone below suture of body whorl dorsally and a faint buff tinge on adjacent spire callus. Dimensions: 34.4 x 15.1 mm, aperture 17.3 mm (holotype); largest paratype 44.6 x 22.7 mm.". Recent. Saya de Malha Bank.