Pages
pp. 55 -
63

The nomenclatorial history and the current taxonomic treatment of the species name Limneus ampla Hartmann, 1821 (Gastropoda: Pulmonata: Lymnaeidae) have been reviewed. It was established that this name cannot be regarded as a junior synonym of Turbo patulus Da Costa, 1778, as it has been suggested by Kruglov and Starobogatov [1983]. The original description of Turbo patulus contradicts the original drawing of the shell; moreover, the species’s author obviously used this name in a quite wide sense, therefore it might be attached to different Palaearctic species of the (sub)genus Radix Montfort, 1810. Moreover, the species L. ampla does not occur in the Britain waterbodies, therefore it hardly could be described by Da Costa under the name Turbo patulus. To prevent possible troubles with using of these taxonomic names in future, we designate the lectotypes of Turbo patulus (based on its original picture) and Limneus ampla here.

Таксономические заметки об европейско-сибирских пресноводных моллюсках. 1. Turbo patulus Da Costa, 1778 не является старшим синонимом Limneus ampla Hartmann, 1821 (Mollusca: Gastropoda: Lymnaeidae)
Винарский М.В.; Глоэр П.;
Pages
pp. 65 -
67

Acrotoma baryshnikovi sp. nov. from northern Georgia (South Ossetia) is described. The species is referred to the subgenus Iliamneme subg. nov.

Новый вид и новый подрод рода Acrotoma O.Boettger, 1881 (Pulmonata, Clausiliidae)
Лихарев И.М.; Шилейко А.А.;
Pages
pp. 69 -
72

Descriptions of Noneulota gen. nov. with N. surprisa sp. nov. and N. khakassica sp. nov. are presented. The new genus belongs to Hygromiidae (Hygromiinae) and is characterized mainly by abruptly descending last whorl, presence of a strong lip and absence of inner (rudimentary) stylophore.

Новый род и два новых вида Hygromiidae (Pulmonata) из южной Сибири
Шилейко А.А. Хорсак М.;
Pages
pp. 73 -
77

A comparative analysis of shell form in two dreissenid species, Dreissena polymorpha and D. bugensis, from the Rybinsk Reservoir was performed. The adaptations of these mussels to the same conditions have shown to be different. An assumption was made that the presence of a closely-related species in the biocenosis may influence the morphological variability of mussels. 

Морфологическая изменчивость дрейссен (Dreissenidae, Bivalvia) Рыбинского водохранилища при совместном и раздельном обитании
Павлова В. В.;
Pages
pp. 79 -
82

Two specimens of bigfin reef squid Sepioteuthis lessoniana Lesson, 1830 were caught by jigging in the Peter the Great Bay (42°37’N, 132°32’E) in October 2005. Both squids, a male with dorsal mantle length (DML) 273 mm and a female with DML 196 mm, were sexually mature, and female had spermatangia implanted into buccal membrane. It was the first record of sexually mature specimens of S. lessoniana in waters of southern Maritime Province of Russia (Primorye). In September 2006 two specimens of bigfin reef squid were caught by handle net in the Peter the Great Bay (42°47’N, 132°00’E): an immature female with DML 177 mm and a sexually mature female with DML 185 mm. Females were not copulated. The occurrence of tropical-subtropical species S. lessoniana in waters of the Peter the Great Bay, is associated with warming up of surface waters in the northwestern Japan Sea in recent years.

О новых находках кальмара Sepioteuthis lessoniana Lesson, 1830 (Cephalopoda, Loliginidae) в заливе Петра Великого (Японское море)
Мокрин Н. М.; Слободской Е. В.;
Pages
pp. 83 -
84
Первая находка брюхоногого моллюска Hexaplex trunculus (L., 1758) в северной части Черного моря
Алексеев Д.О.; Фролов Д.С.;
Pages
pp. 85 -
87
Род Mastoides Westerlund, 1896 (Pulmonata, Enidae)
Шилейко А.А.;
Keywords
Nystiellidae; new genus; new species;
Pages
pp. 1 -
4

In the Middle Oxfordian of European Russia a new gastropod was found, for which a new species and genus Liapinella liapini are proposed. This form is referred to the family Nystiellidae.

Liapinella - новый вид эпитониоидей (Gastropoda) изверхней Юры европейской России
Гужов А.В. ;
Pages
pp. 5 -
15

Two new species, Pararetifusus kantori sp. nov. and P. kosugei sp. nov. (Buccinidae: Colinae) are described from the Bering, Okhotsk and Japan seas. New data were obtained on the morphology of the type species of the genus Pararetifusus, P. tenuis.

Два новых вида рода Pararetifusus Kosuge, 1967 (Buccinidae: Colinae) с замечаниями по морфологии Pararetifusus tenuis (Okutani, 1966)
Косьян А.Р.;
Pages
pp. 17 -
42

Based on the shell structure, anatomical and radular characters of seven species recorded from the Russian marine fauna and attributed to genera Latisipho and Helicofusus, L. pharcidus is reduced to the junior synonym of L. hypolispus, whereas L. errones, L. jordani, L. georgianus, and H. luridus – to the synonyms of L. hallii.

Анатомия и таксономический состав рода Latisipho Dall (Gastropoda: Buccinidae) из российских вод
Косьян А.Р.;
Pages
pp. 43 -
46

Some shells of Chlamys behringiana bearing mollusks Trichamathina nobilis at upper valves were collected near North Kurile Islands. Egg capsules were found under most of shells of T. nobilis. Descriptions of egg capsules and larval shells are presented. Evidences of kleptoparasitic relationships between T. nobilis and C. behringiana are presented.

Описание кладок яиц и зародышевой раковины брюхоногого моллюска Trichamathina nobilis (Gastropoda, Capulidae) с замечаниями по взаимоотношению этого вида с двустворчатым моллюском Chlamys behringiana.
Алексеев Д. О.;
Pages
pp. 47 -
52

Radular morphology was studied in detail in 64 species of 7 genera of Turrinae. It is suggested that the so-called “central tooth” is formed by a fusion of 3 teeth: the central one and a pair of lateral. A similar condition was found in some representatives of the subfamilies Cochlespirinae and Crassispirinae (Turridae).

О морфологии и гомологии центрального зуба радулы Turrinae (Conoidea: Turridae)
Кантор Ю. И.;
Pages
pp. 53 -
58

Anomalies in female reproductive system (imposex) were recorded in populations of Buccinum undatum and Nucella lapillus in the White and Barents seas. For Buccinum cyaneum from the Barents Sea the anomalies in reproductive system were not found. 7.7% of females of Buccinum undatum from the White Sea had imposex in 1976, and 6.5% in 2005; in the Barents Sea in 2005 – 29.5%. 46.1% of females of Nucella lapillus from the Barents Sea have imposex. The degree of development of imposex demonstrated that the strait Velikaya Salma of the White Sea is less polluted than the Dal’nezelenetskaya Bay of the Barents Sea. By imposex development and probably by organotin pollution the Barents Sea corresponds to the most clean in this respect areas of the British Islands coast – north-eastern England. Comparison of the data of 1976 and 2005 from the White Sea suggested that certain low percentage of females of Buccinum undatum with imposex may be present in populations inhabiting non-polluted areas.

Морфологические аномалии половой системы у некоторых видов брюхоногих моллюсков (Neogastropoda) Белого и Баренцева морей.
Дгебуадзе П. Ю.; Кантор Ю. И.;
Pages
pp. 59 -
72

The composition of opisthobranch mollusk fauna of the Murman coast of the Barents Sea is described using own and literature data reviewed for the first time. Data on distribution and ecology are given, some taxonomical problems are discussed. Three species new for Russian fauna — Polycera quadrilineata, Doto fragilis and Eubranchus tricolor and one species new for the Subarctic — Embletonia pulchra were discovered. The influence of periodical temperature changes on the opisthobranch fauna composition is discussed.

Обзор мелководных заднежаберных моллюсков мурманского побережья Баренцева моря с новыми данными по распространения и биологии
Мартынов А.В.; Коршунова Т.А.; Савинкин О.В.;
Pages
pp. 73 -
88

The Antarctic genus Guyvalvoria Vayssière, 1906 is revised. The type species of the genus, G. francaisi Vayssière, 1906 is redescribed based on the study of the type and new material. Two new species of the genus Guyvalvoria, G. gruzovi sp. nov. and G. savinkini sp. nov. are described from the Davis Sea and Subantarctic Kerguelen Island. In addition, a new genus and species, Murmania antiqua gen. et sp.nov. is described from off the Murman coast of the Barents Sea (depth 60-300 m). The latter taxon is characterized by a wide body, numerous branched rows of the digestive gland and moderately developed notal rim with an elevated ridge. Radular teeth of Murmania antiqua possess unusual clusters of lateral denticles. The Antarctic genus Guyvalvoria and Subarctic genus Murmania gen. nov. have some similarities in the external appearance, presence of numerous branches of the digestive gland and a tendency to shift of the anus caudally. Morphological peculiarities of the new taxon suggest a new interpretation of the head composition in the family Tergipedidae: the tergipedid head is formed with involving of the postoral lobes of the anterior foot, as distinct from the “typical head”, characteristic of most aeolidacean nudibranchs. This conclusion is supported by a number of examples from the family Tergipedidae and other families of the aeolidaceans. Both Murmania gen. nov. and Guyvalvoria Vayssière, 1906 are considered as one of most basal within the Tergipedidae; transformations of the digestive gland within the family are discussed. Ревизован антарктический род Guyvalvoria Vayssière, 1906.

Архаичные Tergipedidae Арктики и Антарктики: Murmania antiqua gen. et sp. nov. и ревизия рода Guyvalvoria Vayssière с описанием двух новых видов
Мартынов А.В.;
Pages
pp. 89 -
91

A new species Merdigera invisa Kijashko sp. nov. from the high-mountainous part of Northwest Caucasus is described. Taking into account the features of this species, diagnosis of subfamily Merdigerinae Schileyko, 1984 is defined more exactly.

Новый вид рода Merdigera Held, 1837 (Gastropoda: Pulmonata: Enidae) с северо-западного Кавказа
Кияшко П.В. ;
Pages
pp. 93 -
96

Based on conchological and anatomical study, a new species and genus of the family Enidae is described from Western Transcaucasia.

Pentadentula balandinae gen. et sp. nov. (Pulmonata Enidae) из Западного Закавказья
Суворов А.Н.;
Pages
pp. 97 -
104

Size distribution, age, and sex ratio were studied for a population of baikalian endemic gastropod Maackia herderiana living on shallow-water rocky platform in South Baikal Lake. Six size groups were recognized. The age was determined from the number of annual growth rings on the shell. Each of groups I-V contained snails of two ages corresponding most probably to different generations: spring and autumn. Snails of 4 to 8 years old were assigned to the group VI. The sex ratio in M. herderiana was generally close to 1:1. A tendency to deficiency of females in older snails was similar to that described earlier by Kozminsky [2003] for Bithynia tentaculata. It could be explained by a longer life span of males and higher reproductive expenses of females.

Размеры, возраст и половая структура Maackia herderiana (Gerstfeldt, 1859) (Gastropoda: Caenogastropoda: Baicaliidae) из Южного Байкала
Максимова Н.В.; Ситникова Т.Я.;
Pages
pp. 105 -
111

Based on 63 nucleotide sequences 588 base pairs long of the fragment of mitochondrial gene coding for the 1st subunit of cytochrome с oxydase (CO1) of Baikalian endemic mollusc Baicalia carinata (Dybowski, 1875), we show that this species splits into three clades, which correspond to three populations: south (Bolshie Koty, Murinskaya Banka), north-west (from Maloe More to Id. Yarki) and north-east (from Gremyachinsk to Point Pongonie). Each clade includes sequences belonging to three different species of genus Baicalia. This fact indicate a lower degree of genetic differences (about 5%) between morphological species in comparison with differences between populations of the same species (up to 6.8%). We argue that the species of Baicalia Martens, 1876 occurred allopatrically in spite of their parapatric current distribution. Migration and possible inter-specific hybridization played important role in shaping of their current genetic polymorphism.

Исследование популяционного генетического полиморфизма эндемичного байкальского вида Baicalia carinata (Mollusca, Caenogastropoda).
Перетолчина Т. Е.; Ситникова Т. Я.; Щербаков Д. Ю.;