Kaliella kinabaluensis (Tillier & Bouchet, 1988)

Vermeulen, Jaap J., Liew, Thor-Seng & Schilthuizen, Menno, 2015, Additions to the knowledge of the land snails of Sabah (Malaysia, Borneo), including 48 new species, ZooKeys 531, pp. 1-139 : 68-69

Taxon classification Animalia Stylommatophora Euconulidae

Kaliella kinabaluensis (Tillier & Bouchet, 1988) Figure 57

Kionghutania kinabaluensis Tillier & Bouchet, 1988: 271. Kaliella kinabaluensis (Tillier & Bouchet) Liew et al., 2010: Appendix S1 in online Supporting Information. Type from Malaysia, Sabah, Kinabalu N.P.

Examined material from Sabah.

West Coast Province. Kinabalu N.P., Gunting Lagadan (leg. Tachaini Narainan, V 13478).

Description.

Shell small, very thin, somewhat translucent, slightly greenish brown, conical with flat or slightly concave sides; apex rounded. Surface shiny. Whorls moderately convex and not shouldered, last whorl angular at the periphery, moderately convex below the periphery. Protoconch whorls somewhat convex, with spiral sculpture predominant but inconspicuous, very fine, well-spaced, thin threads; radial sculpture inconspicuous. Teleoconch: subordinate spiral striation, first whorls with traces of very inconspicuous, moderately-spaced striation, outer whorls above the periphery with a very fine, very densely placed, somewhat wavy striation (more than 100 striae on the last whorl); below the periphery almost smooth, with faint traces of an even finer spiral striation only towards the periphery. Radial sculpture teleoconch: Above the periphery with coarse, distinctly raised growth lines at irregular intervals; below the periphery these are slightly less distinct. Umbilicus closed. Dimensions: Height up to 5.6 mm; width up to 6.2 mm; diameters of the first four whorls 0.8-0.85 mm, 1.2-1.3 mm, 1.80-1.95 mm, c. 2.7 mm respectively; number of whorls up to 6 1/8; height aperture up to 2.4 mm; width aperture up to 3.2 mm. Radula: central 3-cuspid; laterals 3-cuspid; marginals serrate with 2 large cones at the tip.

Habitat in Sabah and distribution.

Subalpine forest on granodiorite soil, at 3300-3400 m alt. Sabah: Mount Kinabalu (summit trail area). Endemic to Sabah.

Cross diagnosis.

Very similar to Kaliella nephelophila ; see note under the latter.