Volume 17

Volume 17 Part 1-2

pp. 1 -

Neopilina starobogatovi is a new species of monoplacophorans from the southwestern Bering Sea, living at the periphery of hydrothermal zone of Vulkanologov massif. This is the first representative of the class in Russian waters. The description is based on a single specimen found on alive branch of the gorgonarian Parastenella sp., that was sampled by the deep-sea manned submersible «Mir-2» at the depth of 1200 m.

Neopilina starobogatovi - новый вид моноплакофор из Берингова моря, с замечаниями по таксономическому составу семейства Neopilinidae (Mollusca: Monoplacophora)
Иванов Д.Л.; Москалев Л.И.;
pp. 7 -

Chaetoderma felderi is a new species of caudofoveate from the upper slope of the Gulf of Mexico. This is the first “giant” representative of the taxon whose size (407 mm in length when alive) in more than twice as large as any known before. The description is based on a specimen found at the depth of 850-610 m during a recent NSF-sponsored dredge-sampling cruise of R/V Pelican in the Gulf of Mexico.

Chaetoderma felderi – новый гигантский вид каудофовеат из Мексиканского залива (Mollusca: Aplacophora)
Иванов Д.Л.; Шелтема А.;
pp. 13 -

A new genus and new species of the family Tonicellidae are described. This species inhabits Chilean waters near Provincia Valdivia at depths of 0.5-1.5 m where rough seas and nearshore currents are present. It lives among barnacles and feeds on them. This new genus has some features that are typical for genera of the family Mopaliidae, namely Mopalia and Plaxiphora (Fremblia), but it has no caudal sinus in the tail valve and has two petal-shaped processes between the valves.

Новый чилийский хитон-эпизоофаг Gallardoia valdiviensis gen. et sp. nov. (Mollusca, Polyplacophora)
Сиренко Б.И.;
pp. 23 -

Systematic position of the species “Fusus clathratus” Lahusen, 1883 is discussed. It is suggested to be placed in the tribe Eucyclini of the family Trochidae under a new name Gerasimovcyclus lahuseni nom. nov., because the original binomen is a junior homonym of Fusus clathratus Deshayes, 1835, F. clathratus J.C. Sowerby, 1836, and F. clathratus Dujardin, 1837.

Систематическое положение вида Gerasimovcyclus lahuseni nom. nov. (= Fusus clathratus Lahusen, 1883) (Gastropoda) из юрских отложений европейской части России
Гужов А.В.;
pp. 33 -

Anatomy of anterior part of digestive system in two representatives of the subfamily Raphitominae, Veprecula vepratica and Tritonoturris subrissoides has been studied. V. vepratica possesses full set of foregut organs while the foregut of T. subrissoides is highly reduced -- radula, venom apparatus, proboscis and salivary glands are absent. In both species there is an additional foregut organ, lacking in other studied representatives of Raphitominae but having analogues in representatives of other groups of Conoidea. The foregut morphology of V. vepratica and T. subrissoides, apparently representing new types of foregut organization for Raphitominae is described, and the possible functioning of these organs is discussed in comparison to analogous structures found in other conoideans.

Анатомия Veprecula vepratica и Tritonoturris subrissoides: новые варианты строения переднего отдела пищеварительной системы в подсемействе Raphitominae (Conoidea)
Федосов А.Э.;
pp. 43 -

The history of studies on opisthobranch molluscs of the Northern Black Sea are critically reviewed. Data on opisthobranch distribution and ecology are given, some taxonomical problems are discussed. A non-indigenous, warm-water Atlantic tergipedid species Trinchesia perca (Er. Marcus, 1958) (= Cuthona perca) is recorded in the Black Sea for the first time. Morphological and ecological data on the Black Sea specimens of T. perca are provided. Taxonomy and distribution of T. perca are discussed. This paper begins a series of reviews of opisthobranchs of the Northern Black Sea, based on newly collected material and critical revision of previous records.

Заднежаберные моллюски северной части Черного моря. 1. Краткая история изучения и первое обнаружение голожаберного моллюска Trinchesia perca (Er. Marcus, 1958) (Nudibranchia: Tergipedidae)
Мартынов А.В.; Коршунова Т.А.; Гринцов В.А.;
pp. 55 -

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.;
pp. 65 -

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.;
pp. 69 -

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.;
pp. 73 -

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.;