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Pseudamnicola Mitataensis N Ecologica Montenegrina 38: 8-11 (2020) This journal is available online at: www.biotaxa.org/em http://dx.doi.org/10.37828/em.2020.38.2 https://zoobank.org/urn:lsid:zoobank.org:pub:F0A0B89B-3055-45DD-8223-B22209818F05 New species of the genus Pseudamnicola from Kythira Island (Mollusca: Gastropoda: Hydrobiidae) PETER GLÖER1 & ANASTASIOS PORFYRIS2 1 Schulstraße 3, D-25491 Hetlingen, Germany. E-mail: [email protected] 2 Blessa str. 33, 15669 Athens, Greece. E-mail: [email protected] Received: 2 October 2020│ Accepted by V. Pešić: 23 November 2020 │ Published online: 26 November 2020. Schütt (1980) stated that the southern part of the Peleponnese and Kythira Island was inhabited only by Pseudamnicola exilis (Frauenfeld, 1863). The same author designated the lectotype of the latter species on the basis of a specimen from the collection of Frauenfeld, stored in the Natural History Museum Vienna (NHMW). As the type locality of Pseudamnicola exilis Frauenfeld (1863) wrote "aus Macedonien und Griechenland und 2 Exemplare aus Griechenland durch Dunker.", thus this species could be found elsewhere in Greece. However, Schütt (1980) selected the spring 7 km SWS of Skala (Peloponnese, Laconia) as the type locality of the latter species. It is unknown why Schütt (1980) was convinced that his species from the spring near Skala in Peleponnese is conspecific with P. exilis as his species from Skala has more globular and larger shell with a relatively higher spire. Later on, Szarowska & Falniowski (2011) studied 5 samples of Pseuadamnicola from S-Peloponnese and Kythira and found that these populations belong to 4 distinct species. According to the later authors, their population no. 1 was assigned to P. exilis, although it comes from the locality which lies far away from Skala, the type locality selected by Schütt (1980). Szarowska et al. (2015) studied the Pseudamnicola spp. of Greece and found on Kythira two distinct clades of the latter genus, but leaving the both species unnamed. The same authors stated that the morphological differences between species are very low and they stated that “Pseudamnicola seems to be a further example of morphostatic radiation” (Szarowska et al. 2015: p. 134). Later on, one of these species from Karavás (N-Kythira) was described by Falniowski (2016) as Pseudamnicola magdalenae. Recent investigations of hydrobiids from Kythira Island (Greece) revealed two Pseudamnicola species, P. magdalenae Falniowski 2016, already sequenced by Szarowska et al. (2015), and an unnamed species of the latter genus. The aim of this paper is to describe the new species of the genus Pseudamnicola from Kythira Island and enlarge our knowledge on the freshwater gastropods of Greece, especially hydrobid snails which have been intensively studied in recent years (e.g., Glöer and Hirschfelder 2019; Glöer and Hirschfelder 2020; Glöer and Reuselaars 2020a,b; Georgiev and Glöer 2020; Glöer and Pešić 2020). The shells were collected by hand by the second author on August, 25, 2020. Unfortunately we had only a few specimens, so we could not study the anatomy. The measurements of the shells were carried out using a stereo microscope (ZEISS) with an eye-piece micrometer; the photographs were made with a digital camera system (Leica R8). Ecologica Montenegrina, 38, 2020, 8-11 GLÖER & PORFYRIS The type material is stored in the Zoological Museum Hamburg (ZMH). Figure 1. The sampling site of Pseudamnicola mitataensis n. sp. (red dot). In Karavás (black dot) a second Pseudamnicola sp. has been found by Szarowska et al. 2015 which has been described later as P. magdalenae Falkniowski, 2016. Systematics Pseudamnicola mitataensis n. sp. Fig 1 https://zoobank.org/urn:lsid:zoobank.org:act:4D312097-3520-44CB-B713-DDFC324B7700 Material examined: Holotype: shell 3.1 mm high and 2.2 mm broad (ZMH 140797). Paratypes: 2 specimens from type locality (in isopropanol, ZMH 140798), 2 specimens in coll. Glöer, 1 specimen in coll. Porfyris. Figures 2-5. 2: Pseudamnicola exilis (lectotype, NHMW), 3: P. “exilis” sensu Schütt from Skala (Laconia), 4: P. mitataensis n. sp. (holotype), 5: P. mitataensis n. sp. paratype (photographed under ethanol). (2, 3 after Schütt 1980). Ecologica Montenegrina, 38, 2020, 8-11 9 NEW SPECIES OF THE GENUS PSEUDAMNICOLA FROM KYTHIRA ISLAND Type locality: Mitáta, Kythira Island, Greece (36.2450°N, 22.9963°E, spring very close to Mitáta village). Etymology: Named after the type locality. Description: The corneous conical shell has 5-5.5 convex, slightly stepped whorls, separated by a deep suture. The body whorl is prominent and takes 0.75-0.77 of shell height. The aperture is ovate with a sharp peristome. The umbilicus is slit-like to closed. The shell is 2.6-3.1 mm high and 2.1-2.2 mm broad. Juveniles are more globular. Differentiating characters: The new species differs from the lectotype of Pseudamnicola exilis, in shell height and relative height of the spire. This relation of height of body whorl to shell height is in P. magdalenae 0.83-0.86 vs. 0.75-0.81 in P. mitataensis n. sp. Distribution: Greece; only known from the type locality. Figure 6. Mitáta spring, the type locality of Pseudamnicola mitataensis n. sp. References Falniowski, A. (2016) A new species of Pseudamnicola Paulucci, 1878 from Kythira Island, Greece. Folia Malacologica, 24(2), 69–74S. Georgiev, D. & Glöer, P. (2020) Three new hydrobiid species from Thassos Island (Greece) with a redescription of Amnicola charpentieri Roth, 1855. Ecologica Montenegrina, 35, 129–137. https://doi.org/10.37828/em.2020.35.10 Glöer, P. & Hirschfelder, H.-J. (2019) New Freshwater molluscs from Crete, Greece (Gastropoda: Hydrobiidae, Bythinellidae, Valvatidae). Ecologica Montenegrina, 20, 10–23. https://doi.org/10.37828/em.2019.20.2 Glöer, P. & Hirschfelder, H.-J. (2020) Some new Bythinella spp. from southern Greece (Gastropoda: Bythinellidae). Ecologica Montenegrina, 30, 60–67. https://doi.org/10.37828/em.2020.30.5 Glöer, P. & Pešić, V. (2020) Two new species of the genus Bythinella Moquin-Tandona, 1856 from the Greek island of Evia (Gastropoda: Bythinellidae). Ecologica Montenegrina, 36, 1–5. https://doi.org/10.37828/em.2020.36.1 Glöer, P. & Reuselaars, R. (2020) The Bythinella spp. of Greece (Gastropoda: Hydrobioidea: Bythinelliidae). Ecologica Montenegrina, 29, 20–33. https://doi.org/10.37828/em.2020.29.3 Schütt, H. (1980) Zur Kenntnis Griechischer Hydrobiiden. Archiv für Molluskenkunde, 110, 115–149. 10 GLÖER & PORFYRIS Szarowska, M. & Falniowski, A. (2011) Pseudamnicola exilis (Frauenfeld, 1863) in southern Greece: A remnant of a flock of species (Rissooidea: Hydrobiidae)? Folia Malacologica, 19(3), 117–129. Szarowska, M., Osikowski, A., Hofman, S. & Falniowski, A. (2015) Pseudamnicola Paulucci, 1878 (Caenogastropoda: Truncatelloidea) from the Aegean Islands: a long or short story? Organisms, Diversity & Evolution, 16, 121–139. https://doi.org/10.1007/s13127-015-0235-5 Ecologica Montenegrina, 38, 2020, 8-11 11 .
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