Keywords
conchological measurements; population phenofund; terrestrial mollusk; landscapes of Eastern Europe;
Pages
pp. 191 -
204

The population structure of the terrestrial mollusk Fruticicola fruticum (Gastropoda, Pulmonata, Bradybaenidae) in different landscapes of Eastern Europe on the basis of conchological measurements, including morphometric parameters and color variants was studied. For all morphometric parameters used, statistically significant differences were found between the studied populations. At the same time, the shell size are determined not by zonal characteristics, but by microbiotopic conditions. Changes in the frequency of shell phenotypes in Fr. fruticum populations are probably of a multifactorial nature. The ratio of different color variants can be caused by the influence of radiation, cyclic fluctuations of climatic factors, succession changes in biotopes, and gene drift.

Географическая и хронологическая изменчивость конхиологических признаков моллюска Fruticicola fruticum (O.F.Müller, 1774) (Gastropoda; Pulmonata; Bradybaenidae) на территории Восточной Европы
Снегин Э.А.; Снегина Е.А.;
Pages
pp. 1 -
10

Two new species of the genus Callochiton are described: C. sonchaensis sp. nov. from Vietnam and C. tongaensis sp. nov. from Tonga. They differ from other congeneric species in having a different number, shape, size and arrangement of grooves on the pleural areas of the intermediate and tail valves, the number of slits, the size of the dorsal spicules, and sometimes the coloration of the girdle. Absence of Callochiton in the Caribbean Sea and along the coasts of Central and North Americas was, perhaps, due to late advancement of species from this genus into the Tethys from the regions near Gondwana.

Описание двух новых видов Callochiton (Mollusca: Polyplacophora) из Вьетнама и Тонга
Сиренко Б.И.;
Keywords
Gastropoda; infauna; paleogeography; paleoecology; marine sedimentary rocks; Tavda formation;
Pages
pp. 11 -
17

The present work is one of several planned articles on updating information on the biodiversity of malacofauna and palaeogeography of the Middle-Late Eocen Tavda Sea, which existed in the Western Siberia. Paper contains data on fossil species diversity of the family Naticidae of the Middle and Late Eocene West Siberian Sea and on drill holes. The drill holes indicate predator activity, prey of Naticidae and influence of abiotic factors on their behavior. Previously the invertebrate macro-fauna of the Eocene of Western Siberia was not studied. As a result, the biodiversity, paleogeography and paleoecology remained incompletely studied. This requires additional collecting, generalization and systematization of paleontological material.

Представители семейства Naticidae тавдинской свиты (эоцен, Западная Сибирь)
Трубин Я.С.;
Keywords
new species record; Moelleria costulata; Spiromoelleria quadrae; Spiromoelleria maculata;
Pages
pp. 19 -
25

Two species of the subfamily Moelleriinae Hickman et McLean, 1990 – Moelleria costulata (Møller, 1842) and Spiromoelleria quadrae (Dall, 1897) – have been reported from the northwestern Pacific so far. The present paper clarifies their distribution in the region based on the museum collections and newly obtained material from the northwestern Pacific. Also, one more species, Spiromoelleria maculata (Golikov et Gulbin, 1978), which previously had been considered as a member of the genus Homalopoma Carpenter, 1864 (subfamily Coloniinae), is here suggested to be a member of Moelleriinae.

К видовому составу подсемейства Moelleriinae Hickman et McLean, 1990 (Mollusca: Gastropoda) в северо-западной Пацифике
Сиренко Б.И.; Меркульев А.В.; Кроль Е.Н.; Данилин Д.Д.; Нехаев И.О.;
Pages
pp. 27 -
31

New habitats of Lymnaea (Stagnicola) saridalensis Mozley, 1934 were discovered in the former riverbed reservoirs of the basins of the Khopor and Sura rivers in the Volga Upland (Penza region). The parameters of the shell and the indices of the copulative apparatus (ICA), which is used for distinguishing species, were determined. Studied populations were characterized by a significant variability of ICA (0.183 ± 0.01 and 0.276 ± 0.012).

Новые данные о распространении прудовика Lymnaea (Stagnicola) saridalensis Mozley, 1934
Стойко Т.Г.; Сенкевич В.А.; Кадомцева А.С. ;
Pages
pp. 33 -
38

New habitats of Lymnaea (Stagnicola) saridalensis Mozley, 1934 were discovered in the former riverbed reservoirs of the basins of the Khopor and Sura rivers in the Volga Upland (Penza region). The parameters of the shell and the indices of the copulative apparatus (ICA), which is used for distinguishing species, were determined. Studied populations were characterized by a significant variability of ICA (0.183 ± 0.01 and 0.276 ± 0.012).

Морфологические и оптические свойства и эволюционные изменения хрусталиков глаз наземных брюхоногих моллюсков (Pulmonata, Stylommatophora)
Шепелева И.П. ;
Pages
pp. 39 -
42

Gibbinae subfamily in the Mauritius Island is represented by four taxa of generic rank. The anatomy of the type species of three of them has been known previously. The description of the reproductive tract of the fourth – Plicadomus sulcatus (Müller, 1774) is presented. It is shown that under striking conchological differences the anatomy of members of all four taxa is very similar and differs in quantitative characters only (the ratio of the length of the separate elements: the vagina / free oviduct and the relative length of the penis.). On the basis of this fact it was concluded that Mauritian Gibbinae is represented by a single genus Gibbus Montfort, 1810 with four subgenera (Gonospira Swainson, 1840, Plicadomus Swainson 1840, Gonidomus Swainson, 1840, and Gibbus s. str.).

Анатомия Plicadomus sulcatus и таксономическая структура маврикийских Gibbinae (Gastropoda, Pulmonata, Streptaxidae)
Шилейко A.A.;
Keywords
terrestrial molluscs; Gastropoda; Pulmonata;
Pages
pp. 43 -
45

Large population of Caucasian mollusc Harmozica ravergiensis was found in the Gvozdiv village in Kyiv region. There were no reports of this species from Central Ukraine before now and this locality is most northwestern for it. Population was monitored during the 2015-2017 and evidently survived two winters on the open grounds in this period. Shell and reproductive anatomy of H. ravergiensis from Gvozdiv are described and illustrated. The presence of the species in area is discussed. Moreover, another new finding of H. ravergiensis is reported: in Petrykivka village (Dnipropetrovsk region, Southern Ukraine) in 2016.

Первая находка инвазивной кавказской наземной улитки Harmozica ravergiensis в Центральной Украине (Stylommatophora, Hygromiidae)
Балашов И.; Швидкая З.; Василюк А.; Марущак А.; Ширяева Д.; Оскирко А. ;
Keywords
COI; exon-capture; new species; new genus;
Pages
pp. 47 -
82

In the course of preparation of a new molecular phylogeny of Conoidea based on exon-capture some new species and species with notable morphology were revealed. The taxonomy of these species is discussed and the radula of most of them illustrated for the first time. New genera are described: Comispira gen. nov. (Cochlespiridae), type species Leucosyrinx mai Li et Li, 2008; Pagodaturris gen. nov. (Clavatulidae), type species Pleurotoma molengraaffi Tesch, 1915. New species: Comispira compta gen. et sp. nov., Sibogasyrinx sangeri sp. nov. (both Cochlespiridae), Pagodaturris philippinensis gen. et sp. nov. (Clavatulidae), Horaiclavus micans sp. nov., Iwaoa invenusta sp. nov. (both Horaiclavidae), Lucerapex cracens sp. nov., Lucerapex laevicarinatus sp. nov. (Turridae), Heteroturris kanacospira sp. nov. (Borsoniidae). Epideira Hedley, 1918 reallocated from Pseudomelatomidae to Horaiclavidae The radulae of Kuroshioturris nipponica (Shuto, 1961) (Turridae), Leucosyrinx verrillii (Dall, 1881), Leucosyrinx luzonica (Powell, 1969), comb. nov. are illustrated for the first time.

Новые и необычные глубоководные Conoidea, ревизованные на основании строения раковины, радулы и ДНК
Кантор Ю.И.; Федосов А.Э.; Пулляндр Н. ;
Keywords
gastropods; egg cases; Okhotsk Sea;
Pages
pp. 83 -
86

Eleven egg cases of Beringius marshalli (Dall, 1919) (Gastropoda: Buccinidae: Beringiinae) were found in the north part of Okhotsk Sea. Egg cases consist of 2-7 rounded capsules. Largest capsule has 54 mm in height and 31 mm in thickness. Capsule contains 2-3 embryos and numerous nurse eggs. Some egg capsules contained 2-3 young specimens (height 15.8, diameter 7.1 mm), which have well-developed calcareous shells.

Кладки и яйцевые капсулы брюхоногого моллюска Beringius marshalli (Dall, 1919) (Gastropoda: Buccinidae: Beringiinae)
Гульбин В.В. ;
Keywords
sexual dimorphism; variation; Yakutia;
Pages
pp. 87 -
90

The findings of the freshwater snail Boreoelona ehrmanni endemic to the Far East from the waterbodies of Yakutsk City are described. It is shown on the basis of dissections of snails and morphometric study of their shells that there are no statistically significant differences between the males and females of B. ehrmanni.

Находки Boreoelona ehrmanni Prozorova et Starobogatov, 1991 (Bithyniidae, Gastropoda, Mollusca) в водоемах города Якутска
Андреева С. И.; Андреев Н. И. ;
Keywords
land snails; slugs; invasive species; Chondrula; Helicopsis; steppe zone; Ukraine;
Pages
pp. 101 -
112

37 species of the land molluscs were identified in the material collected in 2002-2017,  many being earlier unknown from Zaporozhye region. In total 39 species of molluscs can be considered as reliably recorded from this region. The presence of some species is the result of anthropochory. This concerns first of all those land snails which have spread from the Crimea: Brephulopsis bidens, B. cylindrica, Phenacolimax annularis, Oxychilus deilus, Monacha fruticola, Xeropicta derbentina, X. krynickii, Eobania vermiculata, Helix lucorum. One species (Xerolenta obvia) was introduced to Zaporozhye region from the western part of Ukraine. The data obtained made it possible to clarify the current distribution of Helicopsis retowskii and Chondrula tridens martynovi over the territory of Ukraine.

Видовой состав наземных моллюсков Запорожской области и влияние на него антропохории
Гураль-Сверлова Н. В.; Бусел В. А.; Гураль Р. И. ;
Pages
pp. 113 -
118

A comparative analysis of the camera eyes of gastropod pulmonate molluscs Cepaea nemoralis and Cepaea hortensis was carried out on the basis of original and published data. It was demonstrated that the eyeballs and their main components in C. nemoralis and C. hortensis have more similarities in morphological and optical properties than in anatomical parameters.

Сравнительный анализ камерных глаз брюхоногих легочных моллюсков Cepaea nemoralis (Linnaeus, 1758) и Cepaea hortensis (Müller, 1774) (Stylommatophora, Helicidae)
Шепелева И.П.;
Pages
pp. 119 -
124
Находка регионально редкого вида моллюсков Marstoniopsis insubrica (Gastropoda: Amnicolidae) в реке Ольшанка и его охранный статус в Украине
Анистратенко В.В.; Анистратенко О.Ю. ;
Pages
pp. 125 -
129
Falsiplecta integripedia gen. et sp. nov. из Вьетнама (Gastropoda, Pulmonata, Helicarionidae)
Шилейко А.; Семенюк И. ;
Keywords
land molluscs; steppe zone; species diversity; chorology;
Pages
pp. 131 -
138

At the end of the XX – beginning of the XXI century 85 species of the land molluscs of 49 genera and 25 families were reliably registered in the steppe zone of Ukraine. The highest species richness was recorded in the northern steppe subzone (79 species). The main centers of the species diversity are the Donetsk Upland (65% of the total number of species) and the western part of the Black Sea Lowland with the southern spurs of the Podolian Upland adjoining it (55%). The modern composition of the land molluscs fauna of the steppe zone is influenced by the proximity of the Caucasus (for the southeast of Ukraine), the Podolian Upland (for the North-Western Black Sea coast) and the Crimea (for the entire investigated territory). Anthropochory plays an important role in the formation of the land molluscs complexes in the steppe zone of Ukraine.

Пространственное распределение наземной малакофауны степной зоны Украины
Гураль-Сверлова Н.В. ;
Keywords
sexual dimorphism; variation; taxonomy;
Pages
pp. 139 -
150

The locations of Boreoelona contortrix in the waterbodies of Western Siberia and Kazakhstan are reported as well as the data on morphology of shells and copulatory apparatuses of the species from different parts of its range. The interpopulation variation is considered. On the basis of anatomical and morphometric study, it has been shown that there are no statistically significant differences between males and females of B. contortrix. Some problems related to taxonomic diagnostics of the Boreoelona snails are discussed.  

Boreoelona contortrix (Lindholm, 1909) (Bithyniidae, Gastropoda, Mollusca) в водоемах Западной Сибири и Казахстана
Андреева С.И.; Андреев Н.И.; Лазуткина Е.А. ;
Pages
pp. 151 -
156

Morphological and optical properties of tentacular epidermis and cornea of the eyes of some species of terrestrial gastropod pulmonate molluscs were studied and their evolutionary transformations were estimated. It was demonstrated that all examined properties of tentacular epidermis and cornea of those species are typical for terrestrial pulmonates. In the course of evolution tentacular epidermis of terrestrial pulmonate molluscs was modified to less extent than cornea, and both these structures underwent minor changes in comparison with analogous structures of the eyes of marine prosobranch molluscs.

Морфологические и оптические свойства и эволюционные изменения щупальцевого эпидермиса и роговицы глаз наземных брюхоногих моллюсков (Pulmonata, Stylommatophora)
Шепелева И.П. ;
Pages
pp. 157 -
162

The new data about seasonal dynamics of species composition, abundance and biomass of molluscs on soft sediments in the corner part of the Sevastopol bay were analyzed. 24 species of molluscs were recorded in 2006-2007. The microdistribution of Mollusca at stations depends on salinity. The trophic structure of molluscs’community was determinated and includes 6 trophic groups.

Новые данные по сезонной динамике качественного и количественного состава моллюсков в вершинной части Севастопольской бухты (Черное море)
Макаров М. В. ;
Pages
pp. 163 -
168

Only four species of the family Cancellariidae had been reported from the Arctic. However, known distribution of three of them had been limited by the extreme north of the eastern Atlantic so far. The present paper describes findings of Admete contabulata Friele, 1879 from the Barents and the Kara seas and Iphinopsis inflata (Friele, 1879) from the Pacific part of the Arctic Ocean. Lectotype for Admete contabulata is here designated.

Распространение Admete contabulata и Iphinopsis inflata в Арктике (Gastropoda: Cancellariidae)
Нехаев И.О.;