51 research outputs found

    Diversidad de los caracoles terrestres en una zona caliza amenazada cercana a Estambul, Turquía

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    The limestone meadows located to the north–northwest of Istanbul, Turkey, are in danger of being overrun by the rapidly expanding city. Past surveys showed that these habitats harbor rare plant species, including endemics to Turkey. To further evaluate the conservation value of these habitats, especially in terms of the often neglected invertebrates, one limestone area to the north of Küçükçekmece Lake and surrounding Sazlidere Dam was surveyed for land snails. Our findings strengthen the case for the protection of these unique habitats. Twenty–four species of land snails were identified in the survey area. Of these, 21 are native to Turkey, including three whose type location is Istanbul. In addition, two species that are at or near the limits of their ranges are considered to represent peripheral populations that may be especially worth conserving. Although the area surrounding Sazlidere Dam is under protection, the other limestone habitats are severely threatened by ongoing development.Las praderas calcáreas situadas al NNO de Estambul están en peligro de ser rápidamente invadidas por la ciudad en expansión. Estudios anteriores demostraron que estos hábitats albergan especies vegetales raras, incluyendo algunos endemismos turcos. Con objeto de seguir evaluando el valor conservativo de dichos hábitats, en especial en cuanto a los invertebrados, a menudo ignorados, se han estudiado los caracoles terrestres de una zona calcárea al norte del lago Küçükçekmece y alrededor de la presa Sazlidere. Nuestros descubrimientos enfatizan la necesidad de una política de protección de estos hábitats únicos. En el área estudiada se identificaron 24 especies de caracoles terrestres. De ellas, 21 son nativas de Turquía, incluyendo tres cuya localización tipo es Estambul. Además, se considera que dos especies que se hallan en o cerca de los límites de su zona de distribución representan poblaciones periféricas especialmente merecedoras de conservación. A pesar de que la zona que rodea a la presa Sazlidere está protegida, el resto de los hábitats calcáreos está muy amenazado por el creciente desarrollo

    Toxicity of acrylamide derivatives to embryos of the rotifer Adineta vaga

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    Peer Reviewedhttp://deepblue.lib.umich.edu/bitstream/2027.42/47994/1/128_2004_Article_BF00201152.pd

    Land snail diversity in a threatened limestone district near Istanbul, Turkey

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    The limestone meadows located to the north­-northwest of Istanbul, Turkey, are in danger of being overrun by the rapidly expanding city. Past surveys showed that these habitats harbor rare plant species, including endemics to Turkey. To further evaluate the conservation value of these habitats, especially in terms of the often neglected invertebrates, one limestone area to the north of Küçükçekmece Lake and surrounding Sazlidere Dam was surveyed for land snails. Our findings strengthen the case for the protection of these unique habitats. Twenty­-four species of land snails were identified in the survey area. Of these, 21 are native to Turkey, including three whose type location is Istanbul. In addition, two species that are at or near the limits of their ranges are considered to represent peripheral populations that may be especially worth conserving. Although the area surrounding Sazlidere Dam is under protection, the other limestone habitats are severely threatened by ongoing development

    A review of Aulacospira Möllendorff, 1890 and Pseudostreptaxis Möllendorff, 1890 in the Philippines (Gastropoda, Pupilloidea, Hypselostomatidae)

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    The genera Aulacospira and Pseudostreptaxis of the Philippines are revised based on the collections of the Senckenberg Forschungsinstitut und Naturmuseum (Frankfurt am Main, Germany), the Florida Museum of Natural History (USA), and recently collected material. Three new species are described: Aulacospira lens Páll-Gergely & Auffenberg, sp. n., Aulacospira krobyloides Páll-Gergely & Schilthuizen, sp. n., Pseudostreptaxis harli Páll-Gergely & Schilthuizen, sp. n

    Five times over: 42 new Angustopila species highlight Southeast Asia's rich biodiversity (Gastropoda, Stylommatophora, Hypselostomatidae).

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    The Southeast Asian genus Angustopila, currently comprising 13 nominal species, encompasses the world's tiniest land snails. This work shows that there are far more species than previously suspected, and that this genus is in fact, a very speciose group of tiny snails widely distributed in Southeast Asia. Angustopila is revised based on type material of known species as well as 211 samples newly collected in China, Laos, Myanmar, Thailand and Vietnam. Altogether, 53 species and one subspecies are recognised, of which 42 species and subspecies are new to science: A.akrodon Páll-Gergely & Hunyadi, sp. nov., A.apiaria Páll-Gergely & Hunyadi, sp. nov., A.apiostoma Páll-Gergely & Vermeulen, sp. nov., A.apokritodon Páll-Gergely & Hunyadi, sp. nov., A.antidomedon Páll-Gergely & Hunyadi, sp. nov., A.babel Páll-Gergely & Vermeulen, sp. nov., A.bathyodon Páll-Gergely & Hunyadi, sp. nov., A.bidentata Páll-Gergely & Jochum, sp. nov., A.cavicola Páll-Gergely & Dumrongrojwattana, sp. nov., A.cicatricosa Páll-Gergely & Vermeulen, sp. nov., A.coprologosuninodus Páll-Gergely & Grego, ssp. nov., A.erawanica Páll-Gergely & Dumrongrojwattana, sp. nov., A.fratermajor Páll-Gergely & Vermeulen, sp. nov., A.fraterminor Páll-Gergely & Vermeulen, sp. nov., A.gracilis Páll-Gergely & Hunyadi, sp. nov., A.halongensis Páll-Gergely & Vermeulen, sp. nov., A.hyron Páll-Gergely & Vermeulen, sp. nov., A.maasseni Páll-Gergely & Vermeulen, sp. nov., A.majuscula Páll-Gergely & Hunyadi, sp. nov., A.margaritarion Páll-Gergely & Hunyadi, sp. nov., A.megastoma Páll-Gergely & Vermeulen, sp. nov., A.occidentalis Páll-Gergely & Hunyadi, sp. nov., A.oostoma Páll-Gergely & Vermeulen, sp. nov., A.papaver Páll-Gergely & Hunyadi, sp. nov., A.parallela Páll-Gergely & Hunyadi, sp. nov., A.prolixa Páll-Gergely & Hunyadi, sp. nov., A.pusilla Páll-Gergely & Hunyadi, sp. nov., A.pustulata Páll-Gergely & Hunyadi, sp. nov., A.quadridens Páll-Gergely & Vermeulen, sp. nov., A.rara Páll-Gergely & Hunyadi, sp. nov., A.reticulata Páll-Gergely & Hunyadi, sp. nov., A.somsaki Páll-Gergely & Hunyadi, sp. nov., A.steffeki Páll-Gergely & Grego, sp. nov., A.tetradon Páll-Gergely & Hunyadi, sp. nov., A.thersites Páll-Gergely & Vermeulen, sp. nov., A.tonkinospiroides Páll-Gergely & Vermeulen, sp. nov., A.tridentata Páll-Gergely & Hunyadi, sp. nov., A.tweediei Páll-Gergely & Hunyadi, sp. nov., A.uvula Páll-Gergely & Hunyadi, sp. nov., A.vandevenderi Páll-Gergely & Jochum, sp. nov., A.vitrina Páll-Gergely & Hunyadi, sp. nov., A.vomer Páll-Gergely & Hunyadi, sp. nov., A.werneri Páll-Gergely & Hunyadi, sp. nov. Angustopilasubelevata Páll-Gergely & Hunyadi, 2015 is moved to the synonymy of Angustopilaelevata (F. G. Thompson & Upatham, 1997), and A.singuladentis Inkhavilay & Panha, 2016 is a junior synonym of A.fabella Páll-Gergely & Hunyadi, 2015. Three species, namely A.elevata, A.fabella and A.szekeresi, are widespread over several hundred kilometres while some other species (A.huoyani, A.parallelasp. nov., A.cavicolasp. nov.) are known from just two sites a few hundred kilometres apart. All others are small range or single-site endemics. The reproductive anatomy of A.erawanicasp. nov. is described

    The world’s tiniest land snails from Laos and Vietnam (Gastropoda, Pulmonata, Hypselostomatidae)

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    FIGURE 4 Size comparisons of the former record holders, A. pallgergelyi, Acmella nana, Notharinia micro, the smallest marine snail, Ammonicera minortalis, and the two new species described herein. The image of Ammonicera minortalis Rolán, 1992 is from Oliver et al. (2012), whereas the other images (Acmella nana and Arinia micro) are from their respective original descriptions. The figure of Acmella nana is adjusted to scale with the measurement of the smallest specimen, whereas for Angustopila coprologos n. sp. and Angustopila psammion n. sp., the holotypes (not the tiniest shells) are shown.Published as part of Páll-Gergely, Barna, Jochum, Adrienne, J.Vermeulen, Jaap, Anker, Katja, Hunyadi, András, Örstan, Aydin, Szabó, Ábel, Dányi, László & Schilthuizen, Menno, 2022, The world's tiniest land snails from Laos and Vietnam (Gastropoda, Pulmonata, Hypselostomatidae), pp. 62-78 in Contributions To Zoology 91 on page 73, DOI: 10.1163/18759866-BjA10025, http://zenodo.org/record/614730

    Coronistomus Örstan 2021, gen. nov.

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    Genus <i>Coronistomus</i> gen. nov. <p> <b>Diagnosis</b>: Same as for family with widely spaced major teeth and distinct interproximal teeth on trophi.</p> <p> <b>Type species:</b> <i>Coronistomus impossibilis</i> <b>sp. nov. by monotypy.</b></p> <p> <b>Etymology</b>. From the combination of the Latin <i>corona</i> (crown), traditionally used to describe the anterior ciliary organs of rotifers, and the Greek <i>stoma</i> (mouth), in reference to the anatomically united corona and mouth of the new taxon. Gender, masculine.</p>Published as part of <i>Örstan, Aydin, 2021, An extraordinary new fluvial bdelloid rotifer, Coronistomus impossibilis gen. nov. sp. nov., with adaptations for turbulent flow (Rotifera: Bdelloidea: Coronistomidae fam. nov.), pp. 16-28 in Zootaxa 4966 (1)</i> on page 18, DOI: 10.11646/zootaxa.4966.1.2, <a href="http://zenodo.org/record/4736208">http://zenodo.org/record/4736208</a&gt

    Gastropoda, Pulmonata, Helicidae, <i>Cepaea nemoralis</i> (Linnaeus, 1758): New records for Montreal, Canada

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    The European land snail Cepaea nemoralis (Linnaeus, 1758) was introduced in North America in 1857 inBurlington, New Jersey, U.S.A. There is only one anedoctal record of C. nemoralis from Montreal, Canada, but without a dateor an exact location. In this note, recent records of C. nemoralis are presented for Montreal, based on surveys from 7 to 9August 2009 along a southwest to northeast transect parallel to the Montreal-Dorion-Rigaud commuter railroad

    Coronistomidae Örstan 2021, fam. nov.

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    Family Coronistomidae fam. nov. Diagnosis: Corona weakly bilobed ciliated field with lateral borders continuing into mouth; pedicels lacking; trophi with semicircular continuous manubria, not protrusible; two ventral toes and one caudal appendage with two attachment nibs. Type genus: Coronistomus gen. nov.Published as part of Örstan, Aydin, 2021, An extraordinary new fluvial bdelloid rotifer, Coronistomus impossibilis gen. nov. sp. nov., with adaptations for turbulent flow (Rotifera: Bdelloidea: Coronistomidae fam. nov.), pp. 16-28 in Zootaxa 4966 (1) on page 18, DOI: 10.11646/zootaxa.4966.1.2, http://zenodo.org/record/473620
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