Moussonia vitiana (Mousson, 1870) 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 : 23-24

publication ID

https://dx.doi.org/10.3897/zookeys.487.8463

publication LSID

lsid:zoobank.org:pub:4DA2B44E-6351-4E61-B9F2-58D33CBCE817

persistent identifier

https://treatment.plazi.org/id/17627260-7373-AFBF-40DC-41B8376A6AA4

treatment provided by

ZooKeys by Pensoft

scientific name

Moussonia vitiana (Mousson, 1870)
status

comb. n.

Taxon classification Animalia Mesogastropoda Diplommatinidae

Moussonia vitiana (Mousson, 1870) View in CoL comb. n. Figs 50-52

Diplommatina fuscula var. vitiana Mousson 1870, Journal de Conchyliologie, 18: 188. Type locality: Viti Levu, Ovalau.

Diplommatina (Moussonia) vitiana , - Kobelt 1902, Cyclophoridae : 479.

Type material.

Lectotype, here designated, ZMZ 526756/a, Fiji, Ovalau, coll. Mousson ex Graeffe 1868. - Paralectotypes ZMZ 526756/20; ZMZ 526755/6, Viti Levu, coll. Mousson ex Graeffe 1868.

Material.

Limestone outcrop SE of Nambukulevu, 230 m, rainforest, -18.1366 177.8149, leg. Bouchet, Warén & Dayrat, 20.02.1999, MNHN/95, NMBE 516890/15; Nakorosule limestone outcrop, 30 m, degraded forest, -17.7734 178.2517, leg. Bouchet & Dayrat, 16.02.1999, MNHN/432, NMBE 516891/40. Lau Islands: Aiwa, stunt forest on limestone, 5-20 m, -18.3316 -178.6825, leg. Bouchet, 07.03.1999, MNHN/124; Lau Islands: Evuevu Island, NW Vanua Balavu, forest on limestone, 5-50 m, -17.0591 -179.0209, leg P. Bouchet, 01.03.1999, MNHN/2.

Diagnosis.

Shell dextral, medium sized, yellowish to red-brown, bluntly keeled teleoconch whorls, palatalis an elongate undulate lamella.

Description.

Shell dextral, medium sized, last whorl slightly constricted, yellowish to red-brown; protoconch of 2 whorls, smooth; teleoconch of> 5 bluntly keeled whorls; sculpture of fine, densely spaced ribs; suture deep; last whorl not or only slightly ascending before aperture; umbilicus almost closed; aperture attached to last whorl, subrectangular, peristomial rim doubled, reinforced by a labial callus, columella with a strong columellaris; internal lamellar system with one columellaris, two parietal lamellae and one palatalis; columellaris a thin lamella, slightly undulating at its end above the aperture, where it is reinforced by a callus; inner parietalis a long lamella, outer parietalis spatulate and oblique; palatalis in a central position above aperture, formed like an undulate lamella and ending in a knob-like tooth visible as a red-brown callus from the outside.

Operculum unknown.

Measurements.

Lectotype (Fig. 50): H = 2.02; D = 1.14; PH = 0.63; PD = 0.65; W = 7.

Distribution

(Fig. 170). Eastern part of Viti Levu and the neighbouring island of Ovalau.

Remarks.

For a differential diagnosis, refer to Moussonia vitianoides sp. n.