Palaina labeosa, Neubert, Eike & Bouchet, Philippe, 2015
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/9230CA2E-3711-431C-8BB3-1365BB8D04FC |
taxon LSID |
lsid:zoobank.org:act:9230CA2E-3711-431C-8BB3-1365BB8D04FC |
treatment provided by |
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scientific name |
Palaina labeosa |
status |
sp. n. |
Taxon classification Animalia Mesogastropoda Diplommatinidae
Palaina labeosa View in CoL sp. n. Figs 107-109
Type material.
Holotype MNHN IM-2000-27459, paratypes MNHN/16 IM-2000-27460, NMBE 516864/2. - Viti Levu, Waivisa karst, 50-80 m, rainforest, -17.6879 178.4033, leg. Bouchet, 27.08.1998.
Material.
Viti Levu, surroundings of Laselevu village, 80 m, rainforest, -17.7532 178.1416, leg. Bouchet, Warén & Dayrat, 14.02.1999, MNHN/4.
Etymology.
Latin adjective labeosus, -a, -um = with a thick lip.
Diagnosis.
Shell sinistral, medium sized, brownish, whorls with moderately spaced ribs, ribbing pattern above the aperture much denser, aperture subquadrate, peristome reinforced by a strong labial callus, operculum with several concentric lamellae.
Description.
Shell sinistral, medium sized, broadly oval, brownish to yellowish; protoconch acute, granulated; last whorl not constricted, slightly ascending; bulb well developed; umbilicus closed, periomphalum narrow; sculpture of teleoconch whorls with moderately spaced ribs, ribbing pattern above the aperture much denser; aperture subquadrate, double lipped, adhered to the last whorl; peristome reinforced by a strong labial callus; by oblique view into the aperture columellaris invisible; internally, columella only slightly reinforced; bulb demarcated by a faint bulb lamella.
Operculum corneous, outer surface with several concentric lamellae and a single, short raised lamella; internal surface concave, smooth, OD = 0.67.
Measurements.
Holotype (Fig. 107): H = 3.45; D = 1.94; PH = 1.19; PD = 1.21; W = 5.5.
Distribution
(Fig. 170). central and northeastern part of Viti Levu.
Remarks.
For a differential diagnosis, refer to Palaina glabella sp. n. From the conchologically similar Palaina ascendens , Palaina labeosa sp. n. differs by possession of a bulb, and the columellar labrum, which is characterised by the presence of a tooth in Palaina ascendens .
No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.
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