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Ana C Correa - One of the best experts on this subject based on the ideXlab platform.
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RESEARCH ARTICLE Open Access Bridging gaps in the molecular phylogeny of the Lymnaeidae (Gastropoda: Pulmonata), vectors of
2016Co-Authors: Ana C Correa, Juan S Escobar, François Renaud, Patrice David, Jean-pierre Pointier, Patrick Dur, Sylvie Hurtrez-boussèsAbstract:Background: Lymnaeidae snails play a prominent role in the transmission of helminths, mainly trematodes of medical and veterinary importance (e.g., Fasciola liver flukes). As this family exhibits a great diversity in shell morphology but extremely homogeneous anatomical traits, the systematics of Lymnaeidae has long been controversial. Using the most complete dataset to date, we examined phylogenetic relationships among 50 taxa of this family using a supermatrix approach (concatenation of the 16 S, ITS-1 and ITS-2 genes, representing 5054 base pairs) involving both Maximum Likelihood and Bayesian Inference. Results: Our phylogenetic analysis demonstrates the existence of three deep clades of Lymnaeidae representing the main geographic origin of species (America, Eurasia and the Indo-Pacific region). This phylogeny allowed us to discuss on potential biological invasions and map important characters, such as, the susceptibility to infection by Fasciola hepatica and F. gigantica, and the haploid number of chromosomes (n). We found that intermediate hosts of F. gigantica cluster within one deep clade, while intermediate hosts of F. hepatica are widely spread across the phylogeny. In addition, chromosome number seems to have evolved from n = 18 to n = 17 and n = 16. Conclusion: Our study contributes to deepen our understanding of Lymnaeidae phylogeny by both sampling at worldwide scale and combining information from various genes (supermatrix approach). This phylogeny provide
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morphological and molecular characterization of neotropic Lymnaeidae gastropoda lymnaeoidea vectors of fasciolosis
Infection Genetics and Evolution, 2011Co-Authors: Ana C Correa, Juan Escobar, Oscar Noya, Luz Elena Velasquez, Carolina Gonzalezramirez, Sylvie Hurtrezbousses, J P PointierAbstract:Lymnaeidae play a crucial role in the transmission of fasciolosis, a disease of medical and veterinary importance. In the Neotropic, a region where fasciolosis is emergent, eight Lymnaeidae species are currently considered valid. However, our knowledge of the diversity of this taxon is hindered by the fact that lymnaeids exhibit extremely homogeneous anatomical traits. Because most species are difficult to identify using classic taxonomy, it is difficult to establish an epidemiological risk map of fasciolosis in the Neotropic. In this paper, we contribute to our understanding of the diversity of lymnaeids in this region of the world. We perform conchological, anatomical and DNA-based analyses (phylogeny and barcoding) of almost all species of Lymnaeidae inhabiting the Neotropic to compare the reliability of classic taxonomy and DNA-based approaches, and to delimitate species boundaries. Our results demonstrate that while morphological traits are unable to separate phenotypically similar species, DNA-based approaches unambiguously ascribe individuals to one species or another. We demonstrate that a taxon found in Colombia and Venezuela (Galba sp.) is closely related yet sufficiently divergent from Galba truncatula, G. humilis, G. cousini, G. cubensis, G. neotropica and G. viatrix to be considered as a different species. In addition, barcode results suggest that G. cubensis, G. neotropica and G. viatrix might be conspecifics. We conclude that conchological and anatomical characters are uninformative to identify closely related species of Lymnaeidae and that DNA-based approaches should be preferred.
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Bridging gaps in the molecular phylogeny of the Lymnaeidae (Gastropoda: Pulmonata), vectors of Fascioliasis
BMC Evolutionary Biology, 2010Co-Authors: Ana C Correa, Juan S Escobar, Patrick Durand, François Renaud, Patrice David, Philippe Jarne, Jean-pierre Pointier, Sylvie Hurtrez-boussèsAbstract:Background Lymnaeidae snails play a prominent role in the transmission of helminths, mainly trematodes of medical and veterinary importance ( e.g ., Fasciola liver flukes). As this family exhibits a great diversity in shell morphology but extremely homogeneous anatomical traits, the systematics of Lymnaeidae has long been controversial. Using the most complete dataset to date, we examined phylogenetic relationships among 50 taxa of this family using a supermatrix approach (concatenation of the 16 S, ITS-1 and ITS-2 genes, representing 5054 base pairs) involving both Maximum Likelihood and Bayesian Inference. Results Our phylogenetic analysis demonstrates the existence of three deep clades of Lymnaeidae representing the main geographic origin of species (America, Eurasia and the Indo-Pacific region). This phylogeny allowed us to discuss on potential biological invasions and map important characters, such as, the susceptibility to infection by Fasciola hepatica and F. gigantica , and the haploid number of chromosomes (n). We found that intermediate hosts of F. gigantica cluster within one deep clade, while intermediate hosts of F. hepatica are widely spread across the phylogeny. In addition, chromosome number seems to have evolved from n = 18 to n = 17 and n = 16. Conclusion Our study contributes to deepen our understanding of Lymnaeidae phylogeny by both sampling at worldwide scale and combining information from various genes (supermatrix approach). This phylogeny provides insights into the evolutionary relationships among genera and species and demonstrates that the nomenclature of most genera in the Lymnaeidae does not reflect evolutionary relationships. This study highlights the importance of performing basic studies in systematics to guide epidemiological control programs.
Maxim V. Vinarski - One of the best experts on this subject based on the ideXlab platform.
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Ladislavella occulta (Jackiewicz, 1959) – a species of aquatic snails new for Hungary with remarks on its distribution in Central and Eastern Europe
Acta Zoologica Academiae Scientiarum Hungaricae, 2020Co-Authors: Maxim V. VinarskiAbstract:A finding of the lymnaeid species Ladislavella occulta (Jackiewicz, 1959) [Mollusca: Gastropoda: Lymnaeidae] in Hungary is reported, which is the first record of this snail in the country. The shells of L. occulta were found in 1989 in the marsh area of the Batorliget Nature Reserve. The current distribution of this species in Eastern and Central Europe is reviewed. It is hypothesized that L. occulta represents a relic species, whose origin may be traced back to the Pleistocene
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NEW DATA ON POND SNAILS (MOLLUSCA: GASTROPODA: Lymnaeidae) INHABITING THE UKRAINIAN TRANSCARPATHIAN: DIVERSITY, DISTRIBUTION AND ECOLOGY
Ecologica Montenegrina, 2018Co-Authors: Vitaliy V. Anistratenko, Maxim V. Vinarski, Olga Yu. Anistratenko, Yurii I. Furyk, E. V. DegtyarenkoAbstract:Fourteen species of the family Lymnaeidae were revealed in the samples taken from lowland and mountainous parts of the Ukrainian Transcarpathian. Five species are regionally new: Stagnicola corvus , Radix parapsilia , R. balthica , R. ampla and R. tumida ; two regionally rare species ( Ladislavella terebra and Lymnaea fragilis ) are discovered. The most widespread pond snails appear to be Lymnaea stagnalis and Radix intermedia , the rarest one – L. terebra and R. parapsilia found in single locality each. The lowland part of the Ukrainian Transcarpathian maintains more than 4/5 regional fauna of the Lymnaeidae, though a few species occurred in the mountainous locations collected above the 400 m a.s.l. The check-list of species, with appropriate comments on taxonomy, distribution and some ecological characteristics of the lymnaeids found within the studied area is provided. A list of species of aquatic snails and bivalves co-occurring with the Lymnaeidae in the studied area is provided. Relatively high species diversity of malacofauna in the region combined with rarity of some species allow to consider the Transcarpathian as a specific region apparently representing a separate biogeographic unit. There is a need for a further estimate of the regionally rare species in order to clarify their potential conservation status.
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Galba robusta sp. nov. from Yemen (Gastropoda: Lymnaeidae)
Zoosystematica Rossica, 2018Co-Authors: Maxim V. VinarskiAbstract:Mollusks of the genus Galba Schrank, 1803, inhabiting north-east Africa and the Arabian Peninsula, are separated into two morphologically distinct groups. The first group contains two conchologically indistinguishable species, G. truncatula (O.F. Müller, 1774) and G. schirazensis (Küster, 1862). The second group includes one species characterized by significantly larger size and different shell proportions as compared to G. truncatula and G. schirazensis. This species is new one and described here as G. robusta sp. nov. with type locality situated in Yemen. It is hypothesized that G. robusta sp. nov. has a vast distribution, ranging from Central Iran southwards to East Africa. A comparison of the new taxon with two nominal species of Galba, G. mweruensis (Connolly, 1929) and G. umlaasianus (Küster, 1862) described from East and South Africa, as well as some data on conchological variation of African representatives of this genus are given.
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Endemics or strangers? The integrative re-appraisal of taxonomy and phylogeny of the Greenland Lymnaeidae (Mollusca: Gastropoda).
Comptes rendus biologies, 2017Co-Authors: Maxim V. Vinarski, Ivan N. Bolotov, Katrin Schniebs, Ivan O. Nekhaev, Anna K. HundsdoerferAbstract:The Lymnaeidae constitute a significant part of the freshwater molluscan diversity of Greenland. Since 1842, not less than 10 nominal taxa of the species and variety rank were described to organize the diversity of the Greenland lymnaeid snails. All previous attempts to revise these taxa were systematically based on morphological evidence only. Here, we provide a molecular analysis of the phylogenetic affinity and systematic status of three alleged species of the Greenland Lymnaeidae: Lymnaea vahlii (Moller, 1842), L. holboellii (Moller, 1842), and L. pingelii (Moller, 1842). We examined the newly collected material and inspected the type series of the three species. Our results show a very tight relationship between the Greenland snails and the Nearctic species Ladislavella catascopium (Say, 1817) s. lato. From the genetic point of view, the Greenland populations should be classified within L. catascopium, albeit probably with the merit of a subspecies status. The three nominal species of lymnaeids described by Moller (1842) are apparently synonyms of each other. Our findings assume a rather recent colonization of Greenland by snails arriving from the North American mainland, which is compatible with the so-called "tabula rasa" hypothesis, proposed to explain the currently observed taxonomic diversity of continental animals and plants of the North Atlantic islands. No lymnaeid species endemic to Greenland is thus revealed.
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A new late Miocene Lymnaea with aberrant suture structure unique for the family (Gastropoda: Pulmonata: Lymnaeidae)
Historical Biology, 2016Co-Authors: Maxim V. Vinarski, Pavel FrolovAbstract:AbstractA new fossil species of the pond snails (family Lymnaeidae Rafinesque, 1815), Lymnaea bogatschevi sp. n., from the Neogene (Khersonian–Maeotian transition) of southern Russia is described. It is characterised by a peculiar structure of the shell suture not found elsewhere in the family Lymnaeidae (both in living and extinct taxa). The suture of L. bogatschevi sp. n. may be described as a narrow groove that penetrates deep into the shell matter. This feature is developed both in protoconch and teleoconch whorls and is presented in several 100s of specimens that precludes its origin as an individual abnormality. There are no environmental factors known to induce such groove-like sutures in aquatic pulmonates indicating a genetic basis for this structure in L. bogatschevi. Also, we report a single shell with the similar channelled suture from a sample of Lymnaea megarensis (Gaudry in Fischer, 1867) from the Pliocene of Greece. It seems, in this species the groove-like suture was represented as a rare...
Santiago Mascoma - One of the best experts on this subject based on the ideXlab platform.
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ribosomal dna its 1 sequencing of galba truncatula gastropoda Lymnaeidae and its potential impact on fascioliasis transmission in mendoza argentina
Animal Biodiversity and Conservation, 2006Co-Authors: M Bargues, Mera R Y Sierra, H G Gomez, Patricio Artigas, Santiago MascomaAbstract:Secuenciacion del ITS?1 del ADN ribosomal de Galba truncatula (Gastropoda, Lymnaeidae) y su impacto potencial en la transmision de la fascioliasis en Mendoza, Argentina.? La secuenciacion del ITS?1 del ADNr demostro que la especie de gasteropodo lymnaeido Galba truncatula se encuentra en Argentina y que pertenece al haplotipo HC, el mismo responsable de la transmision de la fascioliasis en el area de hiperendemia humana con las mayores prevalencias e intensidades de fascioliasis conocidas, el Altiplano Norte Boliviano.
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european Lymnaeidae mollusca gastropoda intermediate hosts of trematodiases based on nuclear ribosomal dna its 2 sequences
Infection Genetics and Evolution, 2001Co-Authors: M Bargues, J P Pointier, M Vigo, Petr Horak, Jan Dvorak, Robert Patzner, M Jackiewicz, C Meierbrook, Santiago MascomaAbstract:Abstract Freshwater snails of the family Lymnaeidae are of a great parasitological importance because of the very numerous helminth species they transmit, mainly trematodiases of large medical and veterinary impact. The present knowledge on the genetics of lymnaeids and on their parasite–host inter-relationships is far from being sufficient. The family is immersed in a systematic–taxonomic confusion. The necessity for a tool which enables species distinction and population characterization is evident. This paper aims to review the European Lymnaeidae basing on the second internal transcribed spacer ITS-2 of the nuclear ribosomal DNA. The ITS-2 sequences of 66 populations of 13 European and 1 North American lymnaeid species, including the five generic (or subgeneric) taxa Lymnaea sensu stricto, Stagnicola, Omphiscola, Radix and Galba, have been obtained. The ITS-2 proves to be a useful marker for resolving supraspecific, specific and population relationships in Lymnaeidae. Three different groupings according to their ITS-2 length could be distinguished: Radix and Galba may be considered the oldest taxa (370–406 bp lengths), and Lymnaea s. str., European Stagnicola and Omphiscola (468–491 bp lengths) the most recent, American Stagnicola and Hinkleyia being intermediate (434–450 bp lengths). This hypothesis agrees with the phylogeny of lymnaeids based on palaeontological data, chromosome numbers and radular dentition. ITS-2 sequences present a conserved central region flanked by two variable lateral regions corresponding to the 5′ and 3′ ends. The number of repeats of two microsatellites found in this conserved central region allows to differentiate Radix from all other lymnaeids. Phylogenetic trees showed four clades: (A) Lymnaea s. str., European Stagnicola and Omphiscola; (B) Radix species; (C) Galba truncatula; and (D) North American stagnicolines. ITS-2 results suggest that retaining Stagnicola as a subgenus of Lymnaea may be the most appropriate and that genus status for Omphiscola is justified. Radix shows a complexity suggesting different evolutionary lines, whereas G. truncatula appears to be very homogeneous. North American and European stagnicolines do not belong to the same supraspecific taxon; the genus Hinkleyia may be used for the American stagnicolines. Genetic distances and sequence differences allowed us to distinguish the upper limit to be expected within a single species and to how different sister species may be. S. palustris, S. fuscus and S. corvus proved to be valid species, but S. turricula may not be considered a species independent from S. palustris. Marked nucleotide divergences and genetic distances detected between different S. fuscus populations may be interpreted as a process of geographic differentiation developping in the present. Among Radix, six valid species could be distinguished: R. auricularia, R. ampla, R. peregra (= R. ovata; = R. balthica), R. labiata, R. lagotis and Radix sp. The information which the ITS-2 marker furnishes is of applied interest concerning the molluscan host specificity of the different trematode species. The phylogenetic trees inferred from the ITS-2 sequences are able to differentiate between lymnaeids transmitting and those non-transmitting fasciolids, as well as between those transmitting F. hepatica and those transmitting F. gigantica. The Fasciola specificity is linked to the two oldest genera which moreover cluster together in the phylogenetic trees, suggesting an origin of the Fasciola ancestors related to the origin of this branch. European Trichobilharzia species causing human dermatitis are transmitted only by lymnaeids of the Radix and Lymnaea s. str.–Stagnicola groups. Results suggest the convenience of reinvestigating compatibility differences after accurate lymnaeid species classification by ITS-2 sequencing. Similarly, ITS-2 sequencing would allow a step forward in the appropriate rearrangement of the actual systematic confusion among echinostomatids.
François Renaud - One of the best experts on this subject based on the ideXlab platform.
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RESEARCH ARTICLE Open Access Bridging gaps in the molecular phylogeny of the Lymnaeidae (Gastropoda: Pulmonata), vectors of
2016Co-Authors: Ana C Correa, Juan S Escobar, François Renaud, Patrice David, Jean-pierre Pointier, Patrick Dur, Sylvie Hurtrez-boussèsAbstract:Background: Lymnaeidae snails play a prominent role in the transmission of helminths, mainly trematodes of medical and veterinary importance (e.g., Fasciola liver flukes). As this family exhibits a great diversity in shell morphology but extremely homogeneous anatomical traits, the systematics of Lymnaeidae has long been controversial. Using the most complete dataset to date, we examined phylogenetic relationships among 50 taxa of this family using a supermatrix approach (concatenation of the 16 S, ITS-1 and ITS-2 genes, representing 5054 base pairs) involving both Maximum Likelihood and Bayesian Inference. Results: Our phylogenetic analysis demonstrates the existence of three deep clades of Lymnaeidae representing the main geographic origin of species (America, Eurasia and the Indo-Pacific region). This phylogeny allowed us to discuss on potential biological invasions and map important characters, such as, the susceptibility to infection by Fasciola hepatica and F. gigantica, and the haploid number of chromosomes (n). We found that intermediate hosts of F. gigantica cluster within one deep clade, while intermediate hosts of F. hepatica are widely spread across the phylogeny. In addition, chromosome number seems to have evolved from n = 18 to n = 17 and n = 16. Conclusion: Our study contributes to deepen our understanding of Lymnaeidae phylogeny by both sampling at worldwide scale and combining information from various genes (supermatrix approach). This phylogeny provide
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Bridging gaps in the molecular phylogeny of the Lymnaeidae (Gastropoda: Pulmonata), vectors of Fascioliasis
BMC Evolutionary Biology, 2010Co-Authors: Ana C Correa, Juan S Escobar, Patrick Durand, François Renaud, Patrice David, Philippe Jarne, Jean-pierre Pointier, Sylvie Hurtrez-boussèsAbstract:Background Lymnaeidae snails play a prominent role in the transmission of helminths, mainly trematodes of medical and veterinary importance ( e.g ., Fasciola liver flukes). As this family exhibits a great diversity in shell morphology but extremely homogeneous anatomical traits, the systematics of Lymnaeidae has long been controversial. Using the most complete dataset to date, we examined phylogenetic relationships among 50 taxa of this family using a supermatrix approach (concatenation of the 16 S, ITS-1 and ITS-2 genes, representing 5054 base pairs) involving both Maximum Likelihood and Bayesian Inference. Results Our phylogenetic analysis demonstrates the existence of three deep clades of Lymnaeidae representing the main geographic origin of species (America, Eurasia and the Indo-Pacific region). This phylogeny allowed us to discuss on potential biological invasions and map important characters, such as, the susceptibility to infection by Fasciola hepatica and F. gigantica , and the haploid number of chromosomes (n). We found that intermediate hosts of F. gigantica cluster within one deep clade, while intermediate hosts of F. hepatica are widely spread across the phylogeny. In addition, chromosome number seems to have evolved from n = 18 to n = 17 and n = 16. Conclusion Our study contributes to deepen our understanding of Lymnaeidae phylogeny by both sampling at worldwide scale and combining information from various genes (supermatrix approach). This phylogeny provides insights into the evolutionary relationships among genera and species and demonstrates that the nomenclature of most genera in the Lymnaeidae does not reflect evolutionary relationships. This study highlights the importance of performing basic studies in systematics to guide epidemiological control programs.
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Microsatellites in the hermaphroditic snail, Lymnaea truncatula, intermediate host of the liver fluke, Fasciola hepatica
Molecular ecology, 2000Co-Authors: Sandrine Trouvé, Patrick Durand, Sylvie Hurtrez-boussès, L. Degen, C. Meunier, Claire Tirard, Jean-françois Guégan, Jérôme Goudet, François RenaudAbstract:Keywords: DNA markers; genetic variability; heterozygosity; Lymnaeidae; mating system; mollusc
Vinarski Maxim - One of the best experts on this subject based on the ideXlab platform.
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Annotated type catalogue of lymnaeid snails (Mollusca, Gastropoda) in the collection of the Natural History Museum, Berlin
2016Co-Authors: Vinarski MaximAbstract:The article deals with examination of the type materials of sixty-one species and variety of lymnaeid snails (Mollusca: Gastropoda: Lymnaeidae) housed in molluscan collection of the Natural History Museum Berlin, Germany (ZMB). Each taxon is discussed following the same scheme, including synomymy, information on the type materials, current taxonomic allocation, taxonomic and nomenclatorial remarks
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Figures 1-9 from: Vinarski MV (2016) Annotated type catalogue of lymnaeid snails (Mollusca, Gastropoda) in the collection of the Natural History Museum, Berlin. Zoosystematics and Evolution 92(1): 131-152. https://doi.org/10.3897/zse.92.8107
2016Co-Authors: Vinarski MaximAbstract:Figures 1-9 - Type specimens of Lymnaeidae (ZMB). 1 – Limnaea alfredi Suter, 1890, a paralectotype. 2 – Limnaea ovata var. amnicola Westerlund, 1890, a syntype. 3, 4 – Limnaeus amygdalum Troschel, 1837, two syntypes. 5 – Limnaea javanica var. angustior von Martens, 1881, a syntype. 6 – Limnaea brevispira von Martens, 1897, the holotype. 7 – Limnaea stagnalis var. baltica Lindström, 1869, a syntype. 8 – Limnaeus cerasum Troschel, 1837, a syntype. 9 – Limnaea columella var. championi von Martens, 1899, a syntype. Scale bars: 1 mm (1), 2 mm (2–6, 8–9), 5 mm (7)
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Figures 22-31 from: Vinarski MV (2016) Annotated type catalogue of lymnaeid snails (Mollusca, Gastropoda) in the collection of the Natural History Museum, Berlin. Zoosystematics and Evolution 92(1): 131-152. https://doi.org/10.3897/zse.92.8107
2016Co-Authors: Vinarski MaximAbstract:Figures 22-31 - Type specimens of Lymnaeidae (ZMB), continuation. 22 – Limnaea gutta Villa & Villa, 1871, the syntype. 23 – Limnaea humerosa von Martens, 1897, the lectotype. 24 – Stagnicola impedita Baker, 1934, a paratype. 25 – Limnaeus javanicus var. intumescens von Martens, 1867, a syntype. 26 – Limnaea kempi Preston, 1911, the syntype. 27 – Limnaea limosa var. ovata f. margaritacea Westerlund, 1865, a syntype. 28 – Limnaea stagnalis var. westerlundi f. nereni Westerlund, 1894, a syntype. 29 – Limnaea nitidella von Martens, 1885, the lectotype. 30 – Limnaeus nucleus Troschel, 1837, a syntype. 31 – Limnaea nyansae von Martens, 1892, a syntype. Scale bars: 1 mm (22, 26, 29), 2 mm (23, 24, 27, 31), 5 mm (25, 28, 30)
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Figures 46-64 from: Vinarski MV (2016) Annotated type catalogue of lymnaeid snails (Mollusca, Gastropoda) in the collection of the Natural History Museum, Berlin. Zoosystematics and Evolution 92(1): 131-152. https://doi.org/10.3897/zse.92.8107
2016Co-Authors: Vinarski MaximAbstract:Figures 46-64 - Type specimens of Lymnaeidae (ZMB), continuation. 46 – Limnaeus subulatus Dunker in Küster, 1862, a syntype. 47 – Limnaeus sulcatulus Troschel, 1837, a syntype. 48 – Limnaea tigrina Dohrn, 1858, the syntype. 49 – Limnaea undussumae von Martens, 1897, the lectotype. 50 – Bullastra velutinoides Bergh, 1901, a syntype. 51 – Limnaea whartoni Jones & Preston, 1904, a syntype. 52 – Limnaea lagotis var. yarkandensis Nevill, 1878, a syntype. 53 – Limnaeus coarctatus Dunker. 54 – Limnaeus compactus "Ziegler". 55 – Limnaea cornea "Ziegler". 56 – Limnaea elgonensis Preston. 57 – Limnaea fernanensis Preston. 58 – Limnaeus nebulosus Dunker. 59 – Limnaea acuminata var. nevilli von Martens. 60 – Limnaeus nigricans "Ziegler". 61 – Limnaeus nitens "Ziegler". 62 – Limnaeus opacus "Ziegler". 63 – Amphipeplea pfefferiana Dunker. 64 – Limnaea splendens Dunker. Scale bars: 2 mm (51, 52, 55–58, 60–63), 5 mm (46–50, 53, 54, 59, 64)
