Fusiaphera eva: Protoconch smooth, naticoid, of about three whorls. Postnuclear whorls about 6 in number, sculptured with axial ribs and spiral ridges. Axial ribs, which number about 15 on postnuclear whorls, are evenly spaced on early whorls, but as the shell reaches maturity the spacing is interrupted by the development of irregularly spaced varices. Spiral sculpture consists of evenly spaced ridges which cross the axials and number about 14 on body whorl, with about 6 visible on spire whorls. Suture impressed, forming a small channel which is crossed by axial ribs, which sometimes extend above the shoulder, forming tiny coronations. Aperture narrowly ovate, with a single strong spiral ridge inside anterior end, flanked by two smooth U-shaped channels. Slightly inside the smooth outer lip are 12 well-defined plications which descend into aperture. Outer lip with a barely discernible stromboid notch. Parietal shield well-developed and slightly pustulated. Columella with three descending folds, the anterior one forming the edge of the short, inclined siphonal canal. Colour brownish-cream, with spiral cords and varices sometimes much paler than rest of the shell. Inner portion of outer lip with reddish-brown stains which are most prominent on the central part of the outer Up and on the central and outer parts of the parietal callus. Dimensions: 14,9 x 6,7 mm (holotype); 14,65 x 6,5 mm (paratype).

Protoconch 2 smooth, shining depressed whorls, expanding rapidly, merging gradually into main whorls, nucleus submerged. Teleoconch 6 convex whorls, constricted at base, a little canaliculate. Sutures deeply impressed. Sculpture of 12-14 rounded, slightly oblique axial ribs, together with one varix to each whorl, crossed by fine narrow transverse striations, 14 on body-whorl, 9 on penultimate, forming fine nodules at intersections with ribs; up to 7 microscopic hair-lines in between striae, central the strongest, crossed by microscopic growth lines; ribs scaly and recurved at top of shoulders, forming a fine coronation, some being continued as a low lamellate ridge to sutures at an oblique angle. Umbilicus a very fine fissure behind inner-lip callus. Aperture widely elongate, contracted either end, forming a short narrow open siphonal canal, one strong tooth posteriorly; columella straight, 3 strong oblique plaits; inner-lip recurved as strong callus over umbilical opening; peritreme entire; outer-lip thickened but sharp-edged and crenulate, flared anteriorly. Colour off-white with broad light-brown band covering most of whorl, leaving a narrow white band above suture, and continued round centre of body-whorl; aperture white with brown deep in interior. Holotype, length 23-5 mm, breadth 10 mm, which is average.

Fusiaphera eva: This attractive small species is presently known from only two specimens. It is most closely related to Fusiaphera exquisita (Preston, 1905) but differs from that species in its more attenuate shape and finer sculpture. The spiral sculpture in F. exquisita is more prominent than the axial sculpture, while in F. eva the reverse is true. Also, F. exquisita has a faint white line around the centre of the body whorl as do F. azumai Habe, 1961 and F. macrospira (Adams & Reeve, 1850), a feature lacking on F. eva. Fusiaphera eva is named in honour of its discoverer, Mrs Eva Roscoe.

Fusiaphera eva: Known only from sandbanks west of central Bazaruto Island, southern Mozambique, sand and seaweed bottom.

Type locality. Coast of Borneo, China Sea.
Distribution in Australia. 18-27 metres E. of Great Keppel Island, Queensland (22° 53' S., 150° 54' E.). Only known Australian record. Appears to be distributed over a wide area northwards to Japan.