Bythinella righaensis, Glöer & Reuselaars, 2020

Glöer, Peter & Reuselaars, Robert, 2020, The Bythinella spp. of Greece (Gastropoda: Hydrobioidea: Bythinelliidae), Ecologica Montenegrina 29 (2020), pp. 20-33 : 27

Bythinella righaensis n. sp. [fig. 2.5]

Material examined: Holotype ( RMNH.MOL.340502) and 2 paratypes ( RMNH.MOL.340503) from type locality.

Holotype: 3.1 mm high, 1.8 mm broad from type locality.

Paratypes: 2 paratypes from type locality, 2 adult and 10 subadult ex. in coll. Robert Reuselaars (no. 1270).

Locus typicus: Spring in Righani , north of Nafpaktos, Aetolia, Greece at 565 meters altitude ( Figure 7 ), 38° 28' 56.07778” N 21° 46' 05.08430'' E, 13.06.2019 Robert Reuselaars leg.

Habitat: On small stones of the bottom of the springbasin. This species occupies an area of about 2 m 2.

Etymology: Named after Righani town.

Description: The shell is elongated ovate with 4.5-5 convex whorls which are separated by a deep suture. The aperture is ovate. The peristome is somewhat broadened at the columella. The umbilicus is closed. The body whorl takes 0.7 of shell height. The body whorl takes 0.7 of shell height. The aperture is 1.0 mm high and 0.8 mm broad. The ratio of shell height to shell width is 1.6. The shell is 3.1 mm high and 1.8 mm broad.

Differentiating characters: See B. pesici n. sp.

Distribution: Only known from type locality.

Figures

Figures 4-9: Sampling sites. 4. Kapina monastry (type locality of Bythinella kyriaki n. sp.), 5. Aghios Dimitros (type locality of Bythinella dimitrosensis n. sp.), 6. Klima (type locality of Bythinella klimaensis n. sp.), 7. Righani (type locality of Bythinella righaensis n. sp.), 8. Liandina (type locality of Bythinella liandianensis n. sp.), 9. Planitero (type locality of Bythinella kwanti n. sp.).