Bythinella kyriaki, Glöer & Reuselaars, 2020

Glöer, Peter & Reuselaars, Robert, 2020, The Bythinella spp. of Greece (Gastropoda: Hydrobioidea: Bythinelliidae), Ecologica Montenegrina 29 (2020), pp. 20-33 : 21-23

Bythinella kyriaki n. sp. [fig. 2.1]

Material examined: Holotype ( RMNH.MOL.340494) and 2 paratypes ( RMNH.MOL.340495) from type locality.

Holotype: 2.2 mm high, 1.5 mm broad from type locality.

Paratypes: 2 paratypes from type locality, 1 adult and 11 subadult ex. in coll. Robert Reuselaars (no. 1264).

Locus typicus: spring 2 km of monastry Kapina , Epirus, Greece at 620 meters altitude ( Figure 4 ), 39° 34' 01.13475'' N 21° 07' 19.90862'' E, 11.09.2019 Robert Reuselaars leg.

Habitat: strong running spring, the specimen were sparsly found on the small stones (1 per 5-6 stones) beneath the outflow of the spring. This species occupies an area of only 1 m 2.

Etymology: Named after Kyriakos Papavasileiou who accompanied Robert Reuselaars at several trips in Greece and as to thank him for his help and support.

Description: The shell is ovate with 4-4.5 slightly convex whorls which are separated by a deep suture. The aperture is broad ovate to circular, angled at the top. The peristome is slightly reflexed at the columella. The umbilicus is closed. The body whorl takes 0.7 of shell height. The aperture is 0.8 mm high and 0.8 mm broad. The ratio of shell height to shell width is 1.6. The shell is 2.2-2.3 mm high and 1.4-1.5 mm broad.

Differentiating characters: The aperture is more circular than in B. gregoi , the umbilicus is closed and not slit-like.

Distribution: only known from type locality.

2 Bythinella gregoi

3 Bythinella pesici

Spring southwest of Anthousa, Greece

Spring north of Klima, Aetolia, Greece

4 Bythinella klimaensis Spring in Klima, Aetolia, south of lake Trichonida, Greece

5 Bythinella righanesis Spring in Righani, north of Nafpaktos, Aetolia, Greece

6 Bythinella radomani

7 Bythinella kwanti Spring between Kokinochori & Perivoli, Fokidha, Greece

Spring in Planitero, south of Kalavrita, northwest Peleponnesos,

Greece

Spring 5-6 km southeast of Aghios Petros , Parnon mountains ,

8 Bythinella petrosensis Peleponnesos , Greece

9 Bythinella liandinaensis Spring between Liandina and Vasiliki, Peleponnesos, Greece

Monia Konstadinou en Elenis, 2 km east of Kosmadei, Samos island,

10 Bythinella konstadinensis Greece

Spring at Olymbos mountain, aproximately 3 km before the top, south

11 Bythinella olymbosensis Lesvos island, Greece

12 Bythinella dimitrosensis Spring of Aghios Dimotros, Evia, Greece

Bythinella charpentieri

13 cabirius Spring at the road below Palaiopolis, Samothraki, Greece

14 Bythinella charpentieri Attika

Spring in Mari, south of Leonidion , Nomos Argolida, Peloponnese ,

15 Bythinella beckmanni Greece

16 Bythinella atypicos

17 Bythinella walensae

18 Bythinella kosensis

Spring in Faskomilia east of Nea Figalia, north of Neda, Nomos Ilia,

Peloponnes, Greece

Aria spring (Aria Pygi), Naxos island, Greece

Kos island, spring above Agios Dimitrios, Greece

Argiroúpoli, 14 km southwest of Réthymnon , Crete island, Nómos

19 Bythinella rethymnonensis Réthymnon , Greece

20 Bythinella cretensis Exo Potami , Crete island, Greece

Fountain in Zou, 6 km south of Sitía , Nómos Lasíthi, Crete island ,

21 Bythinella sitiensis Greece

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.).