Palaina godeffroyana (Mousson, 1870)

Neubert, Eike & Bouchet, Philippe, 2015, The Diplommatinidae of Fiji - a hotspot of Pacific land snail biodiversity (Caenogastropoda, Cyclophoroidea), ZooKeys 487, pp. 1-85 : 38

Taxon classification Animalia Mesogastropoda Diplommatinidae

Palaina godeffroyana (Mousson, 1870) Figs 74-78

Diplommatina godeffroyana Mousson 1870, Journal de Conchyliologie, 18: 182, pl. VIII, fig. 4. Type locality: Nagara, southern Viti Levu, and Ovalau.

Diplommatina godeffroyana var. fracta Mousson 1870, Journal de Conchyliologie, 18: 183. Type locality: Viti Levu.

Palaina (Palaina) godeffroyana , - Kobelt 1902, Cyclophoridae : 399.

Type material.

godeffroyana lectotype, here designated, ZMZ 526678/a, Fiji, Viti Levu, Island of Nagara [probably now Naqara; also spelled Nanggara, south-east of Viti Levu], Graeffe 1868; paralectotypes ZMZ 526678/4; probable paralectotypes SMF 105089/4, Fiji, Viti Levu, coll. Möllendorff ex Mousson. - fracta syntypes: ZMZ 526681/4, Fiji, Viti Levu.

Material.

SMF 105091/1, Viti Levu, coll. O. Boettger ex Schlüter 1887; ZMZ 526686a/9, Viti Levu, “Tatatan” [a place name we could not identify], Graeffe 1872; ZMZ 526684/15, Viti Levu, Graeffe 1872; ZMZ 526688/1, Viti Levu, Vaini Loba, Graeffe 1872; ZMZ 526682a, Viti Levu, Graeffe 1872; Viti Levu, Waivisa karst, 50-80 m, rainforest, -17.6879 178.4033, leg. Bouchet, 27.08.1998, MNHN/24, NMBE 516894/5; Viti Levu, Saweni karst, 50-60 m, dry forest, -17.9032 177.7983, leg. Bouchet, 22.08.1998, MNHN/1; Viti Levu, Wailotua karst, 50-80 m, rainforest, -17.7582 178.4166, leg. Bouchet, 25-27.08.1998, MNHN/1.

Diagnosis.

Shell sinistral, elongate oval, white, bulb reduced, last whorl ascending, lamellar system reduced.

Description.

Shell sinistral, elongate oval, white to light yellowish; protoconch acute, granulated, consisting of 2 whorls; last whorl not constricted, bulb reduced, inconspicuous; teleoconch sculpture of widely spaced ribs, ribbing pattern slightly wider on the last two whorls; last whorl strongly ascending; aperture circular, in a central position, broadly adhered to the last whorl, peristomial rims connected; umbilicus closed, periomphalum narrow; lamellar system completely reduced; bulb lamella very weak.

Operculum.

Outer surface with concentric rings of lamellae, internal surface concave and smooth inside, OD = 0.52.

Measurements.

Lectotype godeffroyana (Fig. 74): H = 3.4; D = 1.84; PH = 1.36; PD = 1.29; W = 5.5.

Distribution

(Fig. 170). Many sites on Viti Levu.

Remarks.

Palaina godeffroyana resembles Palaina pomatiaeformis , which, however, differs by its larger and elongate shell, denser ribbing pattern, and the presence of a basal columellar denticle.