Protoconch prominent, of 1.3 whorls, diameter 850 µm. Onset of teleoconch marked by a strong axial rib. Teleoconch of about 6 whorls ornamented with high narrow axial ribs barely wider than interspaces. The axial ribs, 14-16 in number, extend over the rounded shoulder and turn down to a narrow sutural ramp, but do not extend all the way to the moderately impressed suture. Spiral sculpture of narrow densely packed spiral cords that become denser and increase in height at regular intervals, forming bead-like nodes on the ribs. There are 8-10 nodes on the body whorl ribs with approximately 16 cords between centers of nodes. Spiral cords intersected by finer incremental riblets that form an intritacalx-like microsculpture. Final rib is produced as a terminal varix. Aperture elongate, narrow. Outer lip thickened with 8 lirae within that ex¬tend to the outer edge but do not descend deeply into the aperture. Posterior canal is formed under the shoulder and is further delineated by a pustule on the parietal wall. Parietal callus well-developed but not extending out as a shield. Columella with three strong folds, the anterior one weakest and bordering die siphonal fold before turning to parallel the other folds. Folds do not extend to the outer edge of the inductura. Body whorl slightly constricted behind the small but well-defined siphonal fasciole. Umbilicus absent. Shell color light brownish-yellow.

Mirandaphera maestratii is separable from M. cayrei by its closely spaced axial ribs. The spiral cords of M. maestratii are also unique, being so closely spaced that the interspaces appear as incised fines. The delicate pattern they form is especially noticeable when there is a varix on which they are visible.

Type Material: Holotype (14.0 mm height X 8.4 mm width) (dd) in MNHN.
Type Locality: Off northeast coast of New Caledonia, Passe de Hienghene, 20°33' S, 164°57' E, 533-610 m [BATHUS 4: sta. DW948].
Other Material Examined: Vanuatu: MUSORSTOM 8: sta. DW1061, 16°15' S, 167*20' E, 458-512 m, 1 dd; Fiji: MUSORSTOM 10: sta. CP1341, 16°52.5' S, 177°43.7' E, 500-614 m, 1 dd; Wallis and Futuna: MU¬SORSTOM 7: sta. DW601, 13°19' S, 176°17' W, 350 m, 1 dd .