3,022 research outputs found
EEG_SpeechCue
No full textData and scripts for: Ivanova, M., Neubert, C. R., Schmied, J., & Bendixen, A. (2023). ERP evidence for Slavic and German word stress cue sensitivity in English. Frontiers in Psychology, 14, 1193822. https://doi.org/10.3389/fpsyg.2023.1193822
Preprint: Ivanova, M., Neubert, C.R., Schmied, J., and Bendixen, A. (2023). ERP evidence for Slavic and German word stress cue sensitivity in English. PsyArXiv [Preprint]. https://doi.org/10.31234/osf.io/hqr34
Contributors to this project are Marina Ivanova, Christiane R. Neubert, Josef Schmied, and Alexandra Bendixen. Due to a technical error, Alexandra Bendixen was not part of the contributor list from 2023-03-24 to 2023-04-03
EEG_SpeechCue
No full textData and scripts for: Ivanova, M., Neubert, C. R., Schmied, J., & Bendixen, A. (2023). ERP evidence for Slavic and German word stress cue sensitivity in English. Frontiers in Psychology, 14, 1193822. https://doi.org/10.3389/fpsyg.2023.1193822
Preprint: Ivanova, M., Neubert, C.R., Schmied, J., and Bendixen, A. (2023). ERP evidence for Slavic and German word stress cue sensitivity in English. PsyArXiv [Preprint]. https://doi.org/10.31234/osf.io/hqr34
Contributors to this project are Marina Ivanova, Christiane R. Neubert, Josef Schmied, and Alexandra Bendixen. Due to a technical error, Alexandra Bendixen was not part of the contributor list from 2023-03-24 to 2023-04-03
Bending Angle and Temperature Climatologies from Global Positioning System Radio Occultations
No full textThe Global Positioning System (GPS) Radio Occultation (OR) technique provides estimates of atmospheric density, temperature, and water vapour content with high vertical resolution, global coverage, and high accuracy. We have used data acquired using this technique in the period 1995–2009 to create a reference climatology of radio occultation bending angle and atmospheric temperature which are used for meteorological studies. The bending angle is interesting because it is a direct measurement and independent of models. It is given with one-degree spatial resolution and 50-meter vertical sampling. In addition, we give the temperature climatology with one-degree spatial resolution and 100-meter vertical sampling. This dataset can be used for several applications including weather forecast, physics of atmosphere, and climate changes. Since the GPS signal is not affected by clouds and the acquisitions are evenly distributed in the globe, the dataset is well suited for studying extreme events (such as convective systems and tropical cyclones) and remote areas
Helix borealis sensu Neubert 2014
No full textAPPENDIX 2. SYSTEMATICS, DISTRIBUTION, VARIABILITY AND ECOLOGY OF HELIX BOREALIS Helix borealis is generally poorly known, including conchological variability and its potential taxonomic significance. Most of the published accounts are in taxonomic compilations, often repeating earlier information, supplemented by faunistic data (see below for an overview of the literature). The biology and ecology of this taxon has been mostly neglected. Notable exceptions to this pattern are Hesse (1920), providing information on soft body morphology, and Welter-Schultes (1998a), who discussed its phenology and past distribution in Crete and on nearby islands. Kobelt (1895) distinguished, besides typical H. borealis, two more Greek taxa currently considered its synonyms. According to his description, Helix thiesseana Kobelt, 1878, described from Evvia, should have a more globular shell with darker palatal callus than the nominotypical form and almost missing spiral sculpture. The name H. thiesseana has been sometimes used not only for populations from Evvia, but also for individuals with darker apertures from the Peloponnese peninsula. Helix aetolica Kobelt, 1892 from Aetolia, western Greece (name invalid due to primary homonymy), should be larger with broader shell, darker coloration and less developed spiral sculpture than the nominotypical subspecies. The Turkish populations were never formally described. SYNONYMY OF HELIX BOREALIS Helix cincta – d’Audebard de Férussac AEJPJF, 1821– 1822: 29 (quarto edition) [partim: La Gréce, l’Archipel; l’ile de Zante] Helix cincta – Deshayes, 1835: 160 [partim: de Morée] Helix ambigua Mousson, 1859: 15, non Helix ambigua Linnaeus, 1758 (presently Fossarus ambiguus) [de la Grèce et de la Thessalie …de Corfou et de Céfalonie se retrouve avec toutes ses particularités sur toute la côte de l’Epire, tant à Sayades qua’à Prevesa] Helix ambigua var. borealis Mousson, 1859: 16 [Ile de Corfou…das les broussailles des rochers de la citadelle] Helix cyrtolena Bourguignat, 1860: 165 [nom. nov. for Helix ambigua Mousson, 1859] Helix (Pomatia) Thiesseana Kobelt, 1878: 320 [bei Chalcis auf Euböa] Helix Thiesseana – Kobelt W, 1879–80: 1, pl. 179, figs 1805–1806 [bei Chalcis auf Euböa] Helix cincta – Westerlund & Blanc, 1879: 79 [Pylos à Navarin, Pyrgos en Elide et dans l’Arcadie] Helix cincta Var. ambigua – Westerlund & Blanc, 1879: 79 [Iles de Céfalonie et d’Ithaque] Helix thiesseana – Westerlund & Blanc, 1879: 80 [Ile d’Eubée partie boréale] Helix Thiesseana – Godet, 1880: 25 [Chalcis (Euboea)] Helix ambigua – Hesse, 1882: 322 [auf Corfu an der strasse nach Castrades, und auf Zante an der Citadelle] Helix (Helicogena) ambigua – Boettger, 1883: 317 [Corfu] Helix (Helicogena) ambigua var. Thiesseae – Boettger, 1883: 329 [Patras; incorrect subsequent spelling of Helix thiesseana Kobelt, 1878] Helix (Helicogena) ambigua var. Thiesseae – Boettger, 1885: 118 [Achaia, Santameri] Helix [Pomatia] ambigua – Tryon & Pilsbry, 1888: 244, pl. 69, fig. 30 [Corfu, Cephalonia] H e l i x [Po m a t i a] a m b i g u a Va r. t h i e s s e a n a – Tryon & Pilsbry, 1888: 244, pl. 69, fig. 31 [Achaia; Chalcis, Euboea] Helix ambigua – Westerlund, 1889: 458 [Griechenland auf Corfu, Cephalonia, Zante, Ithaka]. Helix ambigua Forma clathrata Westerlund, 1889: 459 [Corfu u. Epirus] Helix thiesseana – Westerlund, 1889: 459 [Griechenland bei Chalkis auf Euboea]. Helix (Pomatia) ambigua – Kobelt W, 1891–92: 24, pl. 127, fig. 766 [in Griechenland und Epirus, sowie auf den jonischen Inseln] Helix (Pomatia) ambigua var. aetolica Kobelt W, 1891 –92: 106, pl. 146, figs. 936–937, non Helix (Macularia) Codringtoni var. Aetolica O. Boettger, 1888 (currently Codringtonia parnassia Roth, 1855) [Vrachori in Aetolien; on the plate erroneously labelled as Helix ambigua var. acarnanica] Helix ambigua – Schuberth, 1892: 51, pl. 5, fig. 18 [Corfu] Helix (Pomatia) ambigua – Kobelt W, 1893–97: 778, pl. 215, figs 1–2 [auf der jonischen Inseln, in Epirus und Nordgriechenland] Helix (Pomatia) ambigua var. aetolica – Kobelt W, 1893–97: 778, pl. 215, figs 2 [Vrachori] Helix (Pomatia) thiesseana – Kobelt W, 1893–97: 779, pl. 215, figs 3–4 [bei Chalkis auf Euböa] Helix (Pomatia) thiesseana – Sturany, 1902: 405 [Kalavryta, 800 m Höhe] Helix (Helicogena) ambigua – Kobelt W, 1902–06: 117, pl. 323, figs 1–4 Helix (Helicogena) ambigua thiesseana – Kobelt W, 1902–06: 118, pl. 215, figs 3–4 Helix (Pomatia) ambigua – Sangiorgi, 1903: 94 [Cefalonia, comune] Helix (Helicogena) ambigua thiesseana – Hesse, 1920: 183, pl. 654, figs 6–7 [Patras, Cerigo] Helix (Helicogena) ambigua – Hesse 1915-1920: 251 [Griechenland, Jon. Inseln, Kreta] Helicogena cincta subsp. ambigua – Käufel, 1930: 185 [Korfu, Levkas, Kephalonia] Helix cincta Rasse ambigua – Knipper, 1939: 369 Helix (Helicogena) cincta ambigua – Käufel & Fuchs, 1941: 201 [Zante: Maries, Keri, Skopos] Helix cincta ambigua – Zilch, 1952: 150 Helix (cincta thiesseana) – Zilch, 1952: 150 Helix cincta ambigua – Klemm, 1962: 255 [Levkas: Frini, Olivenhain] Helix (Helix) cincta ambigua – Rähle, 1980: 218 [Kephallinia, Zakynthos] Helix (Helix) cincta ambigua – Liebegott, 1986: 22 [Skopelos, Kira Panagia, Giura, Piperi] Helix cincta ambigua – Rähle, 1986: 6 [Ithaki] Helix (Helix) cincta borealis – Hausdorf, 1993: 45 Helx (Helix) cincta ambigua – Frank, 1997: 141 Helix cincta – Facorellis et al., 1998: 965 [mesolithic: Gioura] Helix (Helix) cincta – Welter-Schultes, 1998a: 100 [Crete: Anopoli, Alikampos; Gavdos, Gavdopoula] Helix cincta borealis – Neubert et al., 2000: 113 [Turkey: between Kaş and Demre] Helix cincta – Triantis et al., 2008: 475 [island group of Skyros] Helix cincta – Welter-Schultes, 2012: 611 [partim] Helix cincta cincta – Psonis et al., 2015: 383 [partim: Crete: Anopoli, Alikampos; Skyros; Peloponnese: Skollis mountain; Kerkyra: Pantokratoras mountain] Helix borealis – Neubert, 2014: 98 Helix borealis – Korábek et al., 2015 Helix borealis – Neubert & Korábek, 2015 DISTRIBUTION OF HELIX BOREALIS Helix borealis has a fragmented distribution. Its main range lies in the Peloponnese, south-western Pindus and the Ionian coast and Islands. On Evvia it is restricted to the north of the island (Neubert, 2014), unless it also lives near Chalkis, as stated in the original description (Kobelt, 1878). It was collected live on Skopelos and Skyros in the northern Sporades. Liebegott (1986) reports it only subfossil from Kyra Panagia, Gioura and Piperi in the northern Sporades; also Facorellis et al. (1998) refers to old shells (older than 7700 BC) from Gioura. On Crete, the species is apparently rare; only two confirmed localities and one probable were reported (Welter-Schultes, 1998a; Psonis et al., 2015). On the islands of Gavdos and Gavdopoula, south of Crete, it is most likely extinct. Shells dated to c. 6000–25 000 BC by radiocarbon analysis demonstrate the autochthonous origin of the species on these islands. However, they also indicate that the species may have been extinct for a long time already (Welter-Schultes, 1998a). In Anatolia, the distribution is broader than indicated by Neubert (2014). The species has been found in the province of Antalya between Kaş, Finike and Kemer (Neubert et al., 2000; own data); the known sites are listed in Table 2. PHENOTYPIC DIVERSITY OF H. BOREALIS The variation in conchological characters exhibits some geographic structure, which can be partly identified with the taxa distinguished by Kobelt (1895), partly the varieties have not been formally described. On Corfu and in the vicinity of Igoumenitsa lives a form identifiable with typical H. borealis (Supporting Information, Fig. S1D). Usually, the three upper bands are separated and well visible on the top of the shell, and the aperture has an ochre, rather than brown, colour. Towards the south (Acarnania and the islands of Lefkada, Kefalonia, Zakynthos) the shell colour is often pale without bands, but with a slightly darker upper half of the shell (Fig. 1C; Supporting Information, Fig. S1E). The colour of the aperture is similar and the coloration is often well developed only on the palatum and upper columella. These two forms were not distinguished from each other by the mitochondrial phylogeny, but together form a distinctive clade sister to the next form (Fig. 3). Snails similar to the syntypes of H. aetolica live in the northern Peloponnese, Aetolia, Evrytania, and marginally also in western Thessaly (Fig. 1E; Supporting Information, Fig. S1F). They usually have a regularly rounded shell with developed, but often inconspicuous, bands. The upper three usually fuse and their colour does not contrast much with that of the background. The aperture margins are completely dark-coloured. Younger individuals are sometimes covered by brown periostracum, which peels off rapidly, but the periostracum seems to be well developed only at more humid sites. Spiral sculpture varies but is often developed and relatively coarse. To the south of the Peloponnese, the shell surface coloration is often paler, with the background more whitish, and there is a tendency to have better separated and more contrasting bands (Supporting Information, Fig. S1G). However, the bands may also be reduced (Fig. 1D; Supporting Information, Fig. S1H). This and the previous form are not clearly separable and there are intermediates, but there is also a corresponding phylogenetic south–north divide (Fig. 4). Populations from Evvia (Fig. 1B; Supporting Information, Fig. S1B) are characterized by pale shells with completely reduced or highly vestigial banding; aperture margins are dark. The upper half of the shell is usually slightly darker than the lower half. The shells often lack spiral sculpture. Columella and aperture margins are relatively slim. This form corresponds fully to H. thiesseana. The analysed individual from Skopelos island (north of Evvia) was also of this type. The examined shells from Crete (Supporting Information, Fig. S1C) were small (around 3 cm), had a dark aperture and pale, but developed, banding and vestigial spiral sculpture. The Turkish populations (Supporting Information, Fig. S1A) are similar to H. thiesseana, and most of the differences may stem from differences in size. The shells are smaller, more compact, and with a smoother surface and finer transverse ribs. Also, unlike H. thiesseana, the Turkish snails often have narrow brown longitudinal bands on the older whorls. Typically, the middle band is the darkest one and is aligned with the suture. The foot is greyish brown with darker, grey or brown back (Fig. 1). The morphology of the genital organs was described by Hesse (1915–20: 183, pl. 654) from specimens from Patra and Kythira Island. Earlier, Schuberth (1892: 51) mentioned a specimen from Corfu as having a short stem of mucous glands and a curved love dart. Neubert (2014: 101) dissected an individual from south-western Anatolia. We examined three individuals from Evvia, 12 from six localities of the ‘ H. aetolica ’ morphotype, two individuals from Kefalonia and one typical H. borealis from Corfu. The genital system (Supporting Information, Fig. S2) does not differ substantially from that of related species (Neubert, 2014) nor are there consistent differences between mitochondrial clades. Short and weakly ramified mucous glands are characteristic. They are usually markedly shorter than the dart sac, but may also be as long as the sac. The love dart is curved towards its tip, with two high and sharp blades in the plane of the curve and two low blunt blades on the sides (the state is unknown for the Cretan-Turkish lineage). The diverticulum branches off in the proximal third to half of the combined pedunculus and bursa stem length. It is usually thick, but its length varies greatly from short (Supporting Information, Fig. S2E, individuals from a locality near Kalavryta, Peloponnese) to almost reaching the length of the bursa stem; sometimes, it is aligned with the bursa stem. The interior of the penis (Supporting Information, Fig. S3) also does not provide characters to differentiate between the H. borealis clades. The atrial stimulator is a knob of varying size. ECOLOGY OF HELIX BOREALIS The habitats where we found H. borealis varied greatly. On Evvia, the snails were attached to high limestone cliffs. Near Sparti, living specimens were also found on bare exposed limestone rocks. In the ruins of ancient Messene, we found it in the grass between the remains of the buildings. In the western Peloponnese, it is often found on Plio-Pleistocene sand and gravel deposits; on this substrate, we found shells on margins of pine forests. On the western coast, we found it in numbers on sand dunes covered with shrubs, a few hundred meters from the shore. Individuals of the ‘ H. aetolica ’ form with closely related haplotypes were found in a grazed phrygana at low elevation (Supporting Information, Fig. S4A), fir growths near Karpenisi at c. 1200 m a.s.l. (Supporting Information, Fig. S4B), and even at a small junk heap under Platanus L. trees in a village. In the north, the species is not limited to limestone. The phenology of the species likely strongly differs between regions. In the south, it is already largely inactive, at least by mid-April, in contrast to the northern part of the range in the mountains in Aetolia. Welter-Schultes (1998a) reports that on Crete the species allegedly emerges after the first October or November rains, only to disappear a few days later. Although there seems to be substantial plasticity, individual lineages may be more restricted in their tolerances. In fact, broadly tolerant is the ‘ H. aetolica ’ form from Peloponnese, Aetolia-Acarnania, Phocis and Evrytania, which appears common in parts of its range. Some other lineages, such as ‘ H. thiesseana ’ and the Cretan lineage, have restricted distributions and probably narrower (realized) niches. At several sites from Lefkada to the Albanian frontier, we have found only old-looking empty shells in April 2016, but it is impossible to say whether this reflects the season or a recent decline. It is also well possible that most of the mortality occurs when the snails are buried in the soil.Published as part of Korábek, Ondřej, Kosová, Tereza, Dolejš, Petr, Petrusek, Adam, Neubert, Eike & Juřičková, Lucie, 2021, Geographic isolation and human-assisted dispersal in land snails: a Mediterranean story of Helix borealis and its relatives (Gastropoda: Stylommatophora: Helicidae), pp. 1310-1335 in Zoological Journal of the Linnean Society 193 (4) on pages 1332-1335, DOI: 10.1093/zoolinnean/zlaa186, http://zenodo.org/record/576147
Euchondrus adwani Eike Neubert & Zuhair Amr 2016, n. sp.
No full textEuchondrus adwani n. sp. (Figure 1) Material: Holotype NMBE 539263; paratype NMBE 539264 /1. Type locality: Syria, surrounding of the monastery of Deir Moussa, 34.0219°N 36.8423°E, 1300 m a.s.l., 11.iii. 2010, leg. Adwan Shehab. *Corresponding author. Email: [email protected] © 2016 Taylor & Francis Measurements (holotype): Height = 11.04 mm; diameter = 4.13 mm; peristome height = 4.03 mm; peristome diameter = 2.97 mm; number of whorls = 8. Diagnosis. Euchondrus adwani n. sp. differs from the widespread E. septemdentatus by its conical shell (broadly oval in E. septemdentatus), its flat suture and teleoconch whorls (suture deeper, whorls much more rounded in E. septemdentatus), the heavy palatal labial callus (weaker in E. septemdentatus), the bar-like subangularis (weaker in E. septemdentatus), and the keeled last whorl (rounded in E. septemdentatus). Description: Shell solid, dextral, cylindrical, upper part cylindro-conical in outline; shell pale brownish to horny yellow coloured; 8 rather flat-sided teleoconch whorls, suture flat with a distinct white sutural thread; teleoconch smooth, glossy, last whorl with fine, straight and irregularly spaced striae; aperture subtriangular, peristome strongly thickened by a labial callus, moderately reflected, with a rich dentition (description clockwise): palatum with a small suturalis followed by a conical palatalis superior and a broad infrapalatalis with the latter two denticles placed on a thick callus; columellar side with a basalis and a straight columellaris; parietum with a strong and long parietalis, bordered by a small spiralis, subangularis large, bar-like, left side of the parietum with another small denticle at the attachment site of the peristome; last teleoconch whorl dorsally compressed forming a distinct blunt ridge (arrows); umbilicus slit-like open, periomphalum large, dish-like. Remarks: This species shows some superficial similarities with E. desertorum Rochanaburananda in Forcart, 1981 (Figure 2), which is endemic to the Negev Desert (Heller, 2009). Both species have a straight conical shell, but E. desertorum is considerably larger than E. adwani n. sp. and its aperture is rounded and not subtriangular. It also differs in the formation of the dentition: in E. desertorum, the infrapalatalis is bifid (simple in E. adwani), the spiralis is large and connected to the parietalis (small and disconnected in E. adwani), and the subangularis is weaker (very strong in E. adwani). The last whorl of E. adwani displays a distinct keel with an enlarged periomphalum, while in E. desertorum the dorsum is rounded, and the periomphalum is much smaller. Etymology: This species is named in honour of Dr. Adwan Shawabi, who was a keen collector of molluscs from Syria, and a personal friend, and who was killed in February 2015 in the Syrian civil war (Amr, 2015).Published as part of Eike Neubert & Zuhair Amr, 2016, On a new species of Euchondrus Boettger, 1883 from Syria (Pulmonata: Enidae), pp. 58-60 in Zoology in the Middle East 62 on pages 58-60, DOI: 10.1080/09397140.2015.1132564, http://zenodo.org/record/88703
Vertrauen, Zuversicht, Verführung, Distanz: Die Verteilungskoalitionen in Nepal an der Schnittstelle zwischen Staat und Bürger
No full textPfaff-Czarnecka J. Vertrauen, Zuversicht, Verführung, Distanz: Die Verteilungskoalitionen in Nepal an der Schnittstelle zwischen Staat und Bürger. In: Kössler R,, Neubert D, v. Oppen A, eds. Gemeinschaften in einer entgrenzten Welt. Studien des Zentrums Moderner Orient, Bd. 12. Berlin: Das Arabische Buch; 1999: 83-111
Radio occultation bending angle anomalies during tropical cyclones
Get PDFThe tropical deep convection affects the radiation balance of the atmosphere changing the water vapor mixing ratio and the temperature of the upper troposphere lower stratosphere. The aim of this work is to better understand these processes and to investigate if severe storms leave a significant signature in radio occultation profiles in the tropical tropopause layer. Using tropical cyclone best track database and data from different GPS radio occultation missions (COSMIC, GRACE, CHAMP, SACC and GPSMET), we selected 1194 profiles in a time window of 3 h and a space window of 300 km from the eye of the cyclone. We show that the bending angle anomaly of a GPS radio occultation signal is typically larger than the climatology in the upper troposphere and lower stratosphere and that a double tropopause during deep convection can easily be detected using this technique. Comparisons with co-located radiosondes, climatology of tropopause altitudes and GOES analyses are also shown to support the hypothesis that the bending angle anomaly can be used as an indicator of convective towers. The results are discussed in connection to the GPS radio occultation receiver which will be part of the Atomic Clock Ensemble in Space (ACES) payload on the International Space Station. © Author(s) 2011
Turanena (Turanena) elegantula Ruud, Menkhorst & Neubert, 2016, spec. nov.
No full textTuranena (Turanena) elegantula spec. nov. (Fig. 5) Type locality & type specimens. – Turkey, Vilayet Van, 4 km SE. Göründü, 1650 m (38.3271°N 42.9331°E), H.P.M.G. Menkhorst leg., 21.viii.1992. Holotype NMBE 544664, paratypes NMBE 544665/1, HMK/>50, RBA/2, RMNH/2, ZMH/2. Diagnosis. – A slender, spindle-shaped light hornyyellowish coloured Turanena species with a well developed parietal callus, a slightly thickened, not reflected, peristome, and a juxtaposed columellar and palatal insertion of the peristome. Description. – Shell dextral, elongated spindle-like in outline, with an open, relatively wide, slit-like umbilicus. The 6.5-7.6 whorls are quite convex with a deep suture. Teleoconch with irregular, fine, oblique striae; there are no spiral striae. Shell moderately solid, somewhat translucent, glossy, yellowish to horny-yellowish coloured; there is no whitish band behind the peristome. Aperture elliptical-rounded, peristome not reflected (only slightly at the columellar part) and only slightly thickened. Columellar and palatal insertion connected by a well developed callus (which is often thickened near its ends). A subangularis is not present (the thickened parietal callus does not form a subangularis but normally fuses with the palatal insertion of the peristome). The somewhat oblique columellar ledge reaches halfway to above the middle of the columellar side of the aperture. Measurements (n = 6). – H = 7.3-9.1 (mean 8.4); LWH = 4.1-4.7 (mean 4.4); MH = 2.2-2.7 (mean 2.4); LWD = 2.9-3.1 (mean 3.0); LWM = 3.0-3.4 (mean 3.2); MD = 1.7-1.9 (mean 1.8); NW = 6.5-7.6 (mean 7.1). Localities. – Known from the locus typicus only (see above). Derivatio nominis. – Derived from elegans (graceful, elegant), which relates to the slenderness of the shell. Differentiation. – Turanena elegantula differs from T. cochlicopoides by its larger size, the more elongated shape, the higher number of whorls, the more prominent parietal callus, and the more clearly thickened peristome. T. conelongata is less slender, the whorls are more convex, the peristome is sharp, the parietal callus is weaker, and the peristome is clearly more reflected at its columellar insertion. Remarks. – Only a single locality is known for T. elegantula, which is located at the southern shore of Van Gölü. From the same area, T. conelongata and T. zilchi has been described, originally also from a single locality. However, the latter two species have now been recorded from a wider area: T. conelongata from Kozluk (vil. Batman), Baykan (vil. Siirt) and Tatvan (vil. Bitlis) (Schütt, 2010: 87, 89 fig. e), and T. zilchi from Baykan and Siirt (vil. Siirt), as well as Silvan, Ergani, Eğil, Çatakköprü and Kulp (vil. Diyarbakır) (Şeşen & Schütt, 2000: 80, fig. 8; Schütt, 2010: 88, 89 figs j+k). We can now add another record of T. zilchi, namely Vilayet Hakkâri, 7 km S. Hakkâri, along the road D400, 1230 m. We here provide a picture (Fig. 6) of this littleknown species, so as to become acquainted with its variability.Published as part of Ruud, A. Bank, Henk P. M. G Menkhorst & Eike Neubert, 2016, Descriptions of new and little-known land snail taxa from Turkey, and establishment of a new genus (Gastropoda, Pulmonata: Lauriidae, Enidae and Vitrinidae), pp. 5-30 in Basteria 80 (1) on page 12, DOI: 10.5281/zenodo.43974
Leiostyla eikenboomi Ruud, Menkhorst & Neubert, 2016, spec. nov.
No full textLeiostyla eikenboomi spec. nov. (Fig. 3) Type locality & type specimens. – Turkey, Vilayet Karabük, Suçatı Tüneli 9 km ESE. Yenice, 190 m (41.1897°N 32.4349°E), H.P.M.G. Menkhorst leg., 22.x.2008. Holotype NMBE 544682, paratypes NMBE 544644/2. Diagnosis. – A conic, densely ribbed Leiostyla species with a prominent angular lamella, as well as a prominent parietalis, palatalis inferior, and columellaris; a basalis and supracolumellaris is missing and there is a prominent two-peaked thickening between the columellar insertion of the peristome and the angular lamella. Description. – Shell dextral, conic in outline, with closely, distinctly and regularly, oblique ribbing; there are no spiral striae. The 6.7-7.2 whorls are convex and separated by a deep suture. Shell rather solid, not or hardly translucent, dark horn-coloured. The last whorl has a lengthy but shallow gutter, corresponding in its position to the palatalis inferior on the outer wall, but there is no distinct basal keel. Umbilicus open, deep and narrow. Peristome strongly reflected at right angles to form a flat, thickened, somewhat yellowish coloured lip. Columellar and palatal insertion connected by a clearly visible parietal callus. Angular lamella prominent, high, without appendages; it almost reaches the border of the parietal callus. The angular lamella is fused with a sharp, triangle-like subangularis that faces the palatal wall and that on its turn is fused with the palatal insertion of the peristome. The subangularis creates a small sinulus. A small sinulus at the columellar insertion of the peristome is created by a two-peaked prominent thickening situated below the border of the parietal callus. Parietalis prominent, high, rather deep inside the aperture; it is not connected with the angular lamella. Palatalis inferior very long and well developed; it just stops in front of the lip (i.e. it does not fuse with it). A very small, dot-like palatalis superior is present just above the anterior end of the palatalis inferior, close to the thickened lip. The columellaris is horizontally projected above the middle of the columellar side of the aperture. There is a marked thickening below the parieto-palatal angle of the peristome. Measurements (n = 2). – Holotype: H = 3.4; LWH = 1.8; MH = 1.4; LWD = 1.9; LWM = 2.0; MD = 1.2; NW = 7.2. Paratype: H = 3.3; LWH = 1.8; MH = 1.4; LWD = 1.9; LWM = 2.1; MD = 1.3; NW = 6.7. Localities. – Known from the locus typicus only (see above). Derivatio nominis. – Named after Joop C.A. Eikenboom, a well-known Dutch malacologist and for forty years an inspiring friend of the second author. Differentiation. – Leiostyla superba differs from L. eikenboomi by its more densily packed and finer ribbing, the less conical outline, the denticulate peristome, the presence of a basalis and supracolumellaris, the more prominent palatalis superior, the more prominent tooth-like thickening of the palatal peristome just above the palatalis superior, and the missing of a two-peaked thickening below the border of the parietal callus. Leiostyla zilchi differs from L. eikenboomi by the presence of a basalis and supracolumellaris, the more developed palatalis superior, and the missing two-peaked thickening below the border of the parietal callus.Published as part of Ruud, A. Bank, Henk P. M. G Menkhorst & Eike Neubert, 2016, Descriptions of new and little-known land snail taxa from Turkey, and establishment of a new genus (Gastropoda, Pulmonata: Lauriidae, Enidae and Vitrinidae), pp. 5-30 in Basteria 80 (1) on page 8, DOI: 10.5281/zenodo.43974
On the verge of extinction – revision of a highly endangered Swiss alpine snail with description of a new genus, Raeticella gen. nov. (Gastropoda, Eupulmonata, Hygromiidae)
Get PDFThe phylogenetic status of the alpine land snail Fruticicola biconica has remained questionable since it was described by Eder in 1917. Considered a microendemic species from mountain tops in Central Switzerland, the shell is specially adapted for life under stones. Herein, we show via molecular and anatomical investigations that F. biconica neither belongs to the land snail genus Trochulus, nor to any other genus within Trochulini, but rather warrants placement within the newly established genus Raeticella Kneubühler, Baggenstos & Neubert, 2022. Phylogenetic analyses reveal that R. biconica is clearly separated from Trochulus. These findings are supported by morphological investigations of the shell and genitalia
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