Liralucina vaubani, Glover & Taylor, 2007

Glover, Emily A. & Taylor, John D., 2007, Diversity of chemosymbiotic bivalves on coral reefs: Lucinidae (Mollusca, Bivalvia) of New Caledonia and Lifou, Zoosystema 29 (1), pp. 109-181 : 152

Liralucina vaubani n. sp.

( Figs 26D; 29)

TYPE MATERIAL. — Holotype: 1 sh, L 3.2 mm, H 3.1 mm, T 1.5 mm ( MNHN).

Paratypes: from type locality, 3 sh and 1 v ( BMNH 20050575 ). —Figured paratypes: from type locality, 2 v, L 2.5 mm, H 2.2 mm ; L 2.6 mm, H 2.3 mm ( MNHN).

TYPE LOCALITY. — New Caledonia, MUSORSTOM 4, stn DW 149, 19°08’S, 163°23’E, 155 m.

ETYMOLOGY. — After NO Vauban, name of the ship that collected the material.

DISTRIBUTION. — Known only from New Caledonia.

DESCRIPTION

Shell small, white, H to 3.1 mm, L to 3.2 mm, subcircular (H/L 0.97), inflated. Umbones prominent. Sculpture of 22-24 radial ribs. Ribs rounded in profile, occasionally dividing, crossed by regularly spaced, fine commarginal lamellae, ribs are less prominent to posterior. Juvenile shell to c. 500 µm with commarginal lamellae only. Protoconch large (160 µm), rounded, PI 90 µm, smooth, PII with fine growth increments. Lunule long, wide and slightly asymmetric,right part larger.Ligament short, slightly inset. Hinge: LV with two cardinal teeth and large anterior lateral and posterior lateral teeth and sockets. RV with one cardinal tooth and prominent anterior and posterior lateral teeth. Anterior adductor scar short, rounded, slightly detached from pallial line; posterior scar oval. Pallial line continuous. Inner shell margin coarsely crenulate.

REMARKS

See comparison with L. sperabilis n. comb. above.