{"title":"A new species of Amphidromus Albers, 1850 (Gastropoda: Stylommatophora: Camaenidae) from China, with notes on Amphidromus species","authors":"Yung-Ching Wang, Zheyu Chen","doi":"10.12657/FOLMAL.029.005","DOIUrl":"https://doi.org/10.12657/FOLMAL.029.005","url":null,"abstract":"Amphidromus zelosus n. sp. from Guangxi Zhuang Autonomous Region, China, is described and illustrated. A. wani He et Zhou, 2017 is synonymised with A. qiongensis He et Zhou, 2017. Additional data on A. sinensis sinensis (Benson, 1851) are given. KeY Words: taxonomy; systematics; new species; tree snails","PeriodicalId":309868,"journal":{"name":"Folia Malacologica","volume":"14 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-03-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116951430","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Molly Kelly, L. Schroeder, D. Mullendore, Benjamin F. Dattilo, W. Peters
{"title":"Feeding behaviour and the operculum in Olividae (Gastropoda): the case of Callianax biplicata (G. B. Sowerby I, 1825)","authors":"Molly Kelly, L. Schroeder, D. Mullendore, Benjamin F. Dattilo, W. Peters","doi":"10.12657/FOLMAL.029.001","DOIUrl":"https://doi.org/10.12657/FOLMAL.029.001","url":null,"abstract":"Olividae are marine gastropods living as predators or scavengers on soft sediments. The complex prey handling behaviour of large predatory species includes the storage of food in a pouch formed temporarily by bending and contraction of the posterior foot. Such metapodial pouches had been observed only in Olividae that lack an operculum, prompting the hypothesis that the folding of the metapodium into a pouch biomechanically required the absence of the operculum. Here we report metapodial pouch formation in an operculate olivid, Callianax biplicata (formerly Olivella biplicata). Since the operculum is too small to close the shell aperture in mature C. biplicata, a protective function seems unlikely. The operculum may rather serve as an exoskeletal point for muscle attachment, but may also represent a ‘vestigial organ’ in the process of evolutionary reduction, or an ontogenetic remnant functional at early life stages but not at maturity. Consequently, our observations refute the notion that only inoperculate olivids can form pouches, but not necessarily the idea that the ability to form a metapodial pouch evolved in parallel with operculum","PeriodicalId":309868,"journal":{"name":"Folia Malacologica","volume":"10 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-03-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128832363","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"First record of Eobania vermiculata (O. F. Müller, 1774) (Gastropoda: Eupulmonata: Helicidae) in Romania","authors":"S. Grigore","doi":"10.12657/FOLMAL.029.003","DOIUrl":"https://doi.org/10.12657/FOLMAL.029.003","url":null,"abstract":"Eobania vermiculata (O. F. Müller) is recorded for the first time in Romania. Other Mediterranean and Balkan species have entered the south of Romania – Dobrogea, or will do so in the near future. We expect the rest of Romania to be invaded, because the Danube is not an insurmountable barrier for some of these species. Key wordS: Eobania vermiculata; alien species; land snail; anthropochory A northward expansion of some terrestrial gastropod species has been observed for the last two decades; the spread has been accelerated by the intensification of trade, tourism development and cross-border freight transport. Among the regions of Romania, Dobrogea has the most favourable conditions for the invasion of Balkan and Mediterranean species. The climate and calcareous substrate of the coastal area in south-eastern Dobrogea favour acclimatisation of the new arrivals. As early as four decades ago, Alexandru V. Grossu anticipated the occurrence of this phenomenon in the https://doi.org/10.12657/folmal.029.003 Folia Malacol. 29(1): 51–53 Fig. 1. Map of Romania with the locality in Costinești","PeriodicalId":309868,"journal":{"name":"Folia Malacologica","volume":"07 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-03-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129354422","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"A new species and new genus of Clausiliidae (Gastropoda: Stylommatophora) from south-eastern Hubei, China","authors":"Zheyu Chen, K. Ouyang","doi":"10.12657/FOLMAL.029.004","DOIUrl":"https://doi.org/10.12657/FOLMAL.029.004","url":null,"abstract":"A new clausiliid species, in a newly proposed genus, Probosciphaedusa mulini gen. et sp. nov. is described from south-eastern Hubei, China. The new taxon is characterised by having thick and cylindrical apical whorls, a strongly expanded lamella inferior and a lamella subcolumellaris that together form a tubular structure at the base of the peristome, and a dorsal lunella connected to both the upper and the lower palatal plicae. Illustrations of the new species are provided. KeY wOrds: new species, new genus, systematics, Phaedusinae, central China","PeriodicalId":309868,"journal":{"name":"Folia Malacologica","volume":"282 3 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-03-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127480484","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Analysis of the adventitious fauna of terrestrial molluscs in the centre of the Russian Plain","authors":"Evgeniy V. Schikov","doi":"10.12657/FOLMAL.029.006","DOIUrl":"https://doi.org/10.12657/FOLMAL.029.006","url":null,"abstract":"The terrestrial mollusc fauna of the central part of the Russian Plain has been analysed with respect to its species composition and the proportion of adventitious species. The classification of adventitious species follows that accepted in Russia. Considerable changes in the fauna took place in the period 2016–2020. Helix lucorum Linnaeus and Cornu aspersum (O. F. Müller) were added to the terrestrial malacofauna of the area. Within the last four years, Arion vulgaris Moquin-Tandon colonised anthropogenic habitats and its spread continues. Krynickillus melanocephalus Kaleniczenko, Arianta arbustorum (Linnaeus), and Helix pomatia Linnaeus are now firmly established in natural ecosystems. Populations of A. vulgaris, K. melanocephalus, and A. arbustorum have become so abundant that now they cause significant damage to agricultural crops. In both natural and anthropogenic habitats K. melanocephalus and A. arbustorum displace Succinea putris (Linnaeus), Deroceras laeve (O. F. Müller), D. sturanyi (Simroth), D. invadens Reise, Hutchinson, Schunack et Schlitt, D. agreste (Linnaeus), D. reticulatum (O. F. Müller), Fruticicola fruticum (O. F. Müller) and Euomphalia strigella (Draparnaud). Interactions between invasive species are discussed. The proportion of alien species in several European countries and in Central Asia is compared. kEy wordS: adventitious fauna; gastropods; terrestrial gastropods; interactions between species","PeriodicalId":309868,"journal":{"name":"Folia Malacologica","volume":"15 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-03-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115516443","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Freshwater micro-gastropods from the Iguaçu National Park, Brazil: two new truncatelloid caenogastropods and anatomy of Chilina megastoma Hylton Scott, 1958","authors":"L. Simone","doi":"10.12657/FOLMAL.029.002","DOIUrl":"https://doi.org/10.12657/FOLMAL.029.002","url":null,"abstract":"Collecting in Foz do Iguaçu National Park, Paraná, Brazil, an important tourist region with preserved rainforest, has revealed three micro-gastropod species which required morphological and taxonomic studies. One of them is a chilinid Chilina megastoma Hylton Scott, a member of a poorly studied group. Another two are new species of truncatelloid caenogastropods: Potamolithus mirim n. sp. and Heleobia iguassu n. sp. The three species are described in detail and discussed from taxonomic and phylogenetic point of view. As they are highly endemic, protective measures are suggested. Key woRdS: Mollusca; systematics; morphology; taxonomy","PeriodicalId":309868,"journal":{"name":"Folia Malacologica","volume":"73 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-03-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"120971060","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Cepaea nemoralis (L.) On Öland, Sweden: recent invasion and unexpected variation","authors":"R. Cameron, T. Proschwitz","doi":"10.12657/folmal.028.026","DOIUrl":"https://doi.org/10.12657/folmal.028.026","url":null,"abstract":"Cepaea nemoralis is a recently introduced species on Öland. Discounting an early and debateable record, the species has been recorded only in the 21st century, despite intensive earlier faunistic surveys. A recent survey has yielded records from the whole length of the island (137 km), but the majority of known populations are in its southern half, most particularly around the settlements of Mörbylånga, Gräsgård and Färjestaden. Populations are usually in anthropogenic habitats. Most appear small and isolated by less disturbed areas. Nearly all samples are polymorphic for both colour and banding morphs, and the variation among populations is low when compared with similar sets from other places where recent colonisation has occurred. There is no latitudinal variation in morph frequencies, nor is any spatial autocorrelation apparent. While a relatively uniform and rigorous selection regime could account for the patterns seen, a single initial introduction followed by transport of propagules large enough to minimise founder effects is also possible. Key woRDs: introduced species; Cepaea nemoralis; shell polymorphism; Öland; Sweden","PeriodicalId":309868,"journal":{"name":"Folia Malacologica","volume":"28 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-12-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127824635","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"First records of Sinanodonta woodiana (Lea, 1834) and Corbicula fluminea (O. F. Müller, 1774) (Mollusca, Bivalvia) from the Adriatic part of Croatia","authors":"L. Beran","doi":"10.12657/folmal.028.024","DOIUrl":"https://doi.org/10.12657/folmal.028.024","url":null,"abstract":"Sinanodonta woodiana (Lea) and Corbicula fluminea (O. F. Müller) are among the most invasive aquatic molluscs found in Europe. Both species were recorded in the Adriatic part of Croatia for the first time in 2019 although in the Danubian Croatia they were more common. An abundant population of S. woodiana was found in an oxbow of the Cetina River; mussels with shell length of ca. 12–17 cm dominated. A population of C. fluminea was recorded in the freshwater section of the Zrmanja River above the Jankovića Buk waterfall which forms the border between the brackish and the freshwater sections of the river. Possible pathways of their introduction and reasons for their rare occurrence in contrast to the Danubian Croatia are discussed.","PeriodicalId":309868,"journal":{"name":"Folia Malacologica","volume":"36 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-12-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122247304","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
G. Manganelli, J. Pieńkowska, E. Kosicka, D. Barbato, A. Benocci, A. Lesicki, F. Giusti
{"title":"New evidence on the relationships between Hypnophila Bourguignat, 1859 and Gomphroa Westerlund, 1902 (Gastropoda: Eupulmonata: Azecidae)","authors":"G. Manganelli, J. Pieńkowska, E. Kosicka, D. Barbato, A. Benocci, A. Lesicki, F. Giusti","doi":"10.12657/folmal.028.023","DOIUrl":"https://doi.org/10.12657/folmal.028.023","url":null,"abstract":"analysis of nucleotide sequences of mitochondrial COI and nuclear 5.8S+ITS2+28S gene fragments was performed on newly obtained specimens of Hypnophila pupaeformis (Cantraine). The results partially agree with previous morphological (shell and genitalia) analysis. They support separateness of H. pupaeformis from all species assigned to Gomphroa, Cryptazeca, Hypnocarnica and Azeca. They also show close relationships of H. pupaeformis with the Gomphroa group. Indeed Hypnophila and Gomphroa form a clade consisting of four subclades: Hypnophila and three lineages named provisionally Gomphroa A, Gomphroa B and Gomphroa C. However, more research is needed to determine their relationships and to establish whether Hypnophila and Gomphroa are two genera or two (or even four) subgenera of one genus. key words: Azecidae; genera; systematics; molecular features; COI; ITS2; nucleotide sequences","PeriodicalId":309868,"journal":{"name":"Folia Malacologica","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-12-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131121302","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}