Vestnik Zoologii

Volume 46, No. 4 (July-August, 2012)
abstracts

Cairaeanthus gen. n. (Cestoda, Rhinebothriidea), with the Description of Two New Species from Dasyatis pastinaca in the Black Sea and the Sea of Azov. Kornyushin V. V., Polyakova T. A. — Two new species were identified among cestodes collected from Dasyatis pastinaca (Linnaeus, 1758) in the Black Sea and the Sea of Azov. Their morphology corresponds in the most characters to the descriptions of Phyllobothrium lactuca van Beneden, 1850 and P. gracilis Wedl, 1855 by L. Borcea (Borcea, 1934) and T. P. Pogorel’tseva (Pogorel’tseva, 1960) from the same host and seas. However, some morphological characters of these cestodes (namely, the marginal loculi on the pedicellate bothridia, cephalic peduncle, absence of the apical sucker and post-poral testes, genital pore opening marginally, close to posterior end of proglottid) correspond to diagnosis of Rhinebothriidea. Since the species from the Black Sea and the Sea of Azov did not fit diagnoses of any known genera currently belonging to Rhinebothriidea, the new genus, Cairaeanthus Kornyushin et Polyakova, gen. n., with two species, C. ruhnkei Kornyushin et Polyakova, sp. n. and C. healyae Kornyushin et Polyakova, sp. n., is established. Cairaeanthus gen. n. differs from Anthocephalum Linton, 1890 in absence of apical sucker, posteriorly bifid bothridia and vitelline fields interrupted by the ovary, not extending in the posterior end of the proglottid. The new genus can be distinguished from Rhinebothrium Linton, 1890, Echeneibothium van Beneden, 1850, Rhabdotobothrium Euzet, 1953, Rhinebothroides Mayes, Brooks et Thorson, 1981, Scalithrium Ball, Neifar et Euzet, 2003 by the absence of facial loculi on the bothridia and by numerous vitelline follicles, stopping at the anterior margin of the ovary; from Rhodobothrium Linton, 1889 — by absence of post-poral testes, and from Spongiobothrium Linton, 1889 — by numerous vitelline follicles, stopping at the level of ovary. C. ruhnkei sp. n. differs from C. healyae sp. n. in the lengths of the strobila, the cephalic peduncle and the bothridia pedicel, in size of marginal loculi and the ovary, in the number of the proglottids and the testes in the proglottid, and in the structure of genital atrium. Two new species are differentiated also from the morphologically related species Phyllobothrium pastinacae Mokhtar-Mocamouri, Zamali, 1981. Examined type specimens of P. pastinacae were attributed to Rhinebothiidea based on a set of morphological characters. However, they appear to differ from all known Rhinebothriidea, including the species from the genera Anthocephalum Linton, 1890 and Cairaeanthus gen. n. Taxonomic position of P.pastinacae needs further identification.
Key words: Cairaeanthus gen. n., Rhinebothriidea, Cairaeanthus ruhnkei sp. n., Cairaeanthus healyae sp. n., Phyllobothrium pastinacae, Dasyatis pastinaca, the Mediterranean Sea, the Black Sea, the Sea of Azov.

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Species Composition and Zoogeographic Peculiarities of Mysid Shrimps (Crustacea, Mysida, Mysidae) of Utlyuk and Molochny Lagoons (Northern Azov Area). Vasilkovskaya O. B. — Results of studies of faunas, distribution and ecology of the mysid shrimps (Mysidae) in 1992–2010 in different areas of Utluk and Molochny Lagoons are provided. Four species of mysids, Diamysis pengoi (Czerniavsky, 1882), Paramysis ullskyi (Czerniavsky, 1882), P. lacustris (Czerniavsky, 1882), P. intermedia (Czerniavsky, 1882) are recorded for the first time from the north-western part of Molochny Lagoon. The family Mysidae is represented by 14 species and subspecies of 7 genera, of them, by 14 species in Utluk Lagoon, and 11 species in Molochny Lagoon. Based on the analysis of their ecological preserences , the mysids of this region are considered to be marine. The mysids in this area are shown to belong in 5 zoogegraphic complexes, depending on their preferences of water salinity. Similarities in the structure of Utluk and Molochny Lagoon faunas are discussed. Comparative analysis of the faunas dynamics in the last 20 years is given.
Key words: Mysida, Crustacea, fauna, ecology, zoogeography, Utluk Lagoon, Molochny Lagoon, Ukraine.

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Land Molluscs (Gastropoda, Pulmonata) of Donetsk Upland and Adjoining Territories. Gural-Sverlova N. V., Martynov V. V., Martynov A. V. — Based on long-term studies (2002–2009) the modern species composition of the land mollusks of Donetsk and Azov uplands and some adjacent territories in Eastern Ukraine is analysed. The largest species diversity is registered in the flood plain forests and the small forests in steppe ravines. The influence of the land mollusk fauna of the Caucasus and Crimea in the species composition of the land mollusks of Donetsk upland and adjacent territories is analysed. Published works devoted to land mollusks of the studied region are briefly reviewed.
Key words: land molluscs, Donetsk upland, Eastern Ukraine.

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Deep-Water Benthic Polychaetes (Vigtorniella zaikai and Protodrilus sp.) in the Black Sea as Indicators of the Hydrogen Sulfide Zone Boundary. Zaika V. E., Sergeeva N. G. — The Black Sea hypoxic layer, situated near the boundary of the hydrogen sulfide zone, is inhabited by the polychaetes Vigtorniella zaikai, Kisseleva, 1992 and Protodrilus sp., which can serve as indicators of the interface between oxic and anoxic water. The maximum number of polychaetes in the northern part of the Black Sea occur at a depth of 150 m, while near Bosporus, where the flow of the Marmara Sea water enters the Black Sea, the peak depth varies from 150 to 250 m.
Key words: Black Sea, hypoxia, Polychaeta, biological indicators of hydrogen sulfide, abundance, distribution.

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Phenotypic Variability and Taxonomical Status of the Species of the Genus Philipomyia (Diptera, Tabanidae). Andreeva R. V. — Range of variability of morphological characters is studied for the species of the genus Philipomyia Olsufjev, 1964, which have wide ecological plasticity as representatives of the mountain landscape complex. Diversity of combinations of several vari-able morphological elements and structures complicates correct identifica-tion as well as puts in question taxonomical status of the species. Studies of larval ecology, morphology and conditions of the development for each species of the genus allowed reliable confirmation of their taxonomical status and to reveal likely causes, which promote morphological variation of these species in phylogenesis.
Key words: horseflies, genus Philipomyia, variability, larvae, ecology, morphology, taxonomical status.

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Haemopoietic System of the Anurans: the Role of Bone Marrow and Liver. Akulenko N. M. — The haemopoietic activity of the frog, Pelophylax ridibundus was investigated during the year. Liver and bone marrow myelograms were examined in the different seasons using the special indexes and coefficients. It was shown the presence of the erythroid and granulocytic differentiation during the year in the both organs. In the bone marrow is changing the total number of the non-diferentiated haemopoietic cells, but ratio between erythroid and granulocytic progenitors is stabile. The haemopoietic activity of the liver has more prominent season variation in comparison with the marrow, but their total significance is comparable. The erythrocytic differentiation is more prominent during the summer and autumn, but granulocytic one took place in the spring and summer.
Key words: haemopoiesis, anuran.

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Biotopic Distribution of Naked Amoebas (Protista) in Ukrainian Polissya Area. Patcyuk M. K., Dovgal I. V. — Forty-one species of naked amoebas were found in the different types of waterbodies of Zhytomyr and Volyn’ parts of Ukrainian Polissya region. The major part of species of naked amoebas in this region demonstrated the prevalence to living in a certain type of water body that possible depends on the hydrochemical and trophic parameters of water. The limnetic and floodplain species complexes of amoebas are distinguished in Ukrainian Polissya.
Key words: naked amoebas, biotop, type of waterbody, Ukrainian Polissya.

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Cathaemasia hians (Digenea, Cathaemasiidae) from Planorbis planorbis (Mollusca, Gastropoda) in Reservoirs of Central Polissya. Zhytova O. P., Korol E. N. — The paper presents the description of Cathaemasia hians Rudolphi, 1809 trematode found on the territory of Ukraine in an intermediate host, fresh-water molluscs Planorbis planorbis. We present also a comparison of metrical characters of the studied C. hians cercariae and those described by other researchers.
Key words: Cathaemasia hians, cercariae, rediae, molluscs, Planorbis planorbis.

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Distribution of Tick Haemaphysalis punctata (Acari, Ixodidae) in Ukraine. Akimov I. A., Nebogatkin I. V. — The northern boundary of H. punctata range was studied. This boundary of its native range (where this species is common and its mass reproductions are periodically recorded) was found to go through Odesa, Mykolaiv, Kherson, Zaporizhia, Donetsk and Lugansk oblasts. Clarified that the boundary of its temporary range (where this species occurs periodically and is dependent on human factors totally) was clarified to go through Volyn, Rivne, Zhytomyr, Kyiv, Chernihiv and Sumy regions. The range of H. punctata is fully subjected to anthropogenic factors in areas where this species dwelt in historically recent times only, and in ancestral areas of distribution such factors affects only dynamics and indices of abundance.
Key words: Haemaphysalis punctata, distribution, Ukraine.

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Echinopla cherapunjiensis sp. n. (Hymenoptera, Formicidae) from India. Bharti H., Gul I. — Echinopla cherapunjiensis Bharti et Gul, sp. n. is described from India. This represents the second species of genus reported in India, with only Echinopla lineata senilis Mayr, 1862 described earlier from Nicobar Islands. The species distinctly differs from all other known species of this genus by the following combination of characters: globose shape of head, presence of seven teeth on petiolar scale, flat dorsum of mesosoma with promesonotal and mesometanotal sutures obsolete, whole body surface (dorsum) rough due to sinuous sculpture, deep excavations and spiky elevations on head and mesosoma and excavations on gaster.
Key words: Echinopla, Formicinae, new species, India.

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A New Species of the Genus Otites (Diptera, Ulidiidae) from Crete (Greece). Kameneva E. P. — Otites cretana Kameneva sp. n. from Crete (Psiloritis Ridge) is described. It superficially resembles Otites ne­bulosa (Latreille, 1812) and Dorycera persica Hennig, 1939 in the combination of very high gena and short antenna, but differs from all known Otitini by the thickened costal vein (in male), undulate vein R2+3, lacking ocellar setae and having 3 pairs of short scutellar setae. Status and generic limits of Otites and Dorycera are preliminary discussed.
Key words: Diptera, Ulidiidae, Otitini, Crete, Greece, Europe, new species.

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