Bythinella kwanti, Glöer & Reuselaars, 2020

Glöer, Peter & Reuselaars, Robert, 2020, The Bythinella spp. of Greece (Gastropoda: Hydrobioidea: Bythinelliidae), Ecologica Montenegrina 29 (2020), pp. 20-33 : 27-28

Bythinella kwanti n. sp. [fig. 2.7]

Material examined: Holotype ( RMNH.MOL.340506) and 2 paratypes ( RMNH.MOL.340507) from type locality.

Holotype: 2.9 mm high, 1.8 mm broad from type locality.

Paratypes: 2 paratypes from type locality, 2.6 mm high and 1.7 mm broad, + 1 juv, 2 adult and 10 subadult ex. in coll. Robert Reuselaars (no. 1273).

Locus typicus: Planitero , south of Kalavrita, NW Peleponnesos, Greece at 495 meters altitude ( Figure 9 ), 37° 55' 59.61717''' N 22° 09' 45.61220'' E, 09.06.2019 Robert Reuselaars leg.

Habitat: stong running spring with medium sized stones with algae cover.

Etymology: Named after Henkdrikjan Kwant who joined Robert Reuselaars on many trips in the last 20 years.

Description: The shell is ovate with 4.5-5 slightly convex whorls which are separated by a deep suture. The aperture is ovate, slightly angled at the top. The peristome is broadened at the columella. The umbilicus is slit-like. The body whorl takes 0.76 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 2.6-2.9 mm high and 1.7-1.8 mm broad.

Differentiating characters: This species is much higher and broader than B. beckmanni .

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.).