Examined material.

Taxon classification

Animalia

Myoida

Verticordiidae

Suárez-Mozo

Nancy Yolimar

Gracia

Adriana

Valentich-Scott

Paul

A new species of

Malletia

(

Bivalvia

Malletiidae

) and new records of deep-water bivalves from Pacific Southern Colombia

Zookeys305201820187621331

10.3897/zookeys.762.20335

Lyonsiella

cf.

magnifica

Dall, 1913

Fig. 12

Examined material.

1 live specimen EA345 (2.5557°N, 79.0476°W) at 668 m (INV MOL9804).

New location.

Off Nariño, Colombian Pacific.

Distribution.

Mexico to Panama (Coan and Valentich-Scott 2012).

Remarks.

Colombian material resembles the type material of Lyonsiellamagnifica. However, our specimens have more prominent umbones, a more truncate anterior end, and a more obliquely truncate posterior end when compared to the type material. Many additional specimens would be necessary to determine if our single specimen falls within the range of intraspecific variation for Lyonsiellamagnifica or it represents a new species.

Figure 2–12.

2 Exterior and interior views of Ennuculapanamina3Jupiterialobula (total length = 4.2 mm) 4Neilonellacf.atossa (total length = 5 mm) 5Malletiagoniura6Limatulacf.saturna7Lucinomaheroica8Calyptogenacf.gallardoi9Carycorbula sp. 10Cuspidariapanamensis11Dallicordiaalaskana12Lyonsiellacf.magnifica. Scale bars: 2, 5, 6, 9, 11 5 mm. 7, 8, 10, 12 10 mm.

Coan

Valentich-Scott

(2012) Bivalve Seashells of Tropical West America. Marine bivalve mollusks from Baja California to northern Peru. Santa Barbara Museum of Natural History. Santa Barbara, 1258 pp.