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Year 1984, Volume 18, Issue 1
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Issue 1
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Tree sparrows and their arthropod nidicols in natural nidi of viral infections. P. 3-9.
Investigations undertaken in the forest-steppe of the Omsk district have revealed contacts of tree sparrows (Passer montanus L.) with 19 species of gamasid mites, Androlaelaps casalis Berl. being the background species, three species of fleas, Ceratophyllus gallinae Schrank being the background species. In nests which earlier were occupied by sand martins (Riparia riparia L.) their former nidicols, ticks of Ixodes lividus Koch, and bugs of Oeciacus hirundinis Jen., are preserved in great number. The contact of the tree sparrow nestlings with arboviruses and viruses of influenza is shown. On the basis of their own studies and analysis of literature the authors have come to conclusion on a prominent role of tree sparrows and their arthropod nidicols in natural nidi of viral infections.
in Russian
The contemporary state of nidi and sick-rate with tick-borne relapsing fever. P. 10-14.
The contemporary state of settlement nidi of tick-borne relapsing fever is discussed on the material collected in the Namanganskaya and Andizhanskaya regions of Uzbek SSR. Despite the control measures and rise of the sanitary culture of population the conditions are still preserved for the maintenance of nidi. As in ancient estates, classical nidi of tick-borne relapsing, fever, so in modern ones there are preserved conditions for existence of flourishing populations of vectors, i. e. favourable habitats and the availability of hosts. The analysis of factors is given affecting the contemporary level of sick-rate with tick-borne relapsing fever. Within the limits of the distribution area of the vector a higher sick-rate should be expected than it is registered.
in Russian
Structure and functions of the digestive system of Bakericheyla chanayi (Trombidiformes, Cheyletidae), an ectoparasite of birds. P. 15-22.
The digestive system of B. chanayi consists of the piercing and sucking mouth parts, which differ in their fusion, of trombidiform type gut, the parts of which (pharynx, oesophagus, midgut, excretory organ and rectum) have a morphological connection between each other, simple propodosomal glands of two types (alveolar and tubular). The digestive system of B. chanaiji is adapted to haematophagy that is expressed in the formation of a piloric connection between the hind—gut and excretory organ and in a considerable differentiation of intestinal epithelium.
in Russian
On peculiarities of localization of isopods of the family Cymothoidae in the gill and oral cavities of fishes. P. 23-29.
The characters of isopods of the family Cymothoidae, which are localized in the gill and oral cavities of fishes, were studied. One and the same species of these cymothoids is capable of localizing both in the gill and oral cavity. The factors affecting the choice of the final habitat in the gill—oral cavity of fishes by cymothoids are given.
in Russian
On the fauna of monogeneans of the family Tetraonchidae Bychowsky, 1937. P. 30-39.
A new species, Tetraonchus grumosus, from gills of Coregonus nasus, C. autumnalis and C. peled is described. The distribution area of this species includes the basins of the Pechora, Ob, Lena, Kolyma and Anadyr. T. alaskensis Price, 1937 is redescribed. Its distribution area seems to correspond to the distribution of the Pacific group of Salmonidae. T. cylindraceus Pronin, 1966 is reduced to a synonym of T. variabilis Mizelle et Webb, 1953. This species was found in the Lena, Kolyma and Anadyr. Three forms of T. borealis (Ollsson, 1893) are distinguished: T. borealis forma typica from gills of Thymallus thymallus, T. borealis f. rauschi from gills of Thymallus arcticus and T. borealis f. minor from gills of Thymallus thymallus and T. arcticus.
in Russian
Postembryonal development of the cestode Aploparaksis crassirostris (Hymenolepididae). P. 40-46.
Larvogenesis of the cestode Aploparaksis crassirostris (Krabbe, 1869) in the intermediate host Eiseniella tetraedra (Sav.) was studied experimentally. Morphological changes of the developing metacestode at the migrating larva stage, the primary cavity, growth and differentiation of the body, scolexogenesis and exocyst development, invagination of scolex and proboscis as well as mature cysticercoid are described in detail.
in Russian
Ultrastructure of cysticercoids of Fimbriaria fasciolaris (Hymenolepididae). P. 47-52.
A study of fine structure of cyclocerci of F. fasciolaris has shown that they have elements of similarity with other modifications of metacestodes of Hymenolepididae and with monocerci of Dilepididae. They differ from larvae of Hymenolepididae by the absence of a typical myelinelike layer limiting the cyst cavity and by the presence of a fibrillar membrane of exocyst containing endocyst and caudal appendage that is typical of monocerci. Superficial syncytium of cyst's tegument is filled with homogenous electronic dense material in which there are pores-canals that is typical of this modification of cyst's tegument of cysticercoids.
in Russian
Analysis of the trematode fauna in the herring-gull from the region of Lebjazhjy Islands (Ukr. SSR, the Crimea). P. 53-58.
Analysis of the trematode fauna of the herring-gull from the region of Lebjazhjy Islands (Ukr. SSR, the Crimea) was carried out. 18 species of trematodes were found in 47 specimens of Larus argentatus. The gulls can be infected with trematodes through marine and brackishwater crustaceans and fishes inhabiting the Karkinitsky gulf, through freshwater animals inhabiting the canals of the irrigation system and through A. mühlingi, R. paraquintus, and D. spathaceum which are brought by gulls from the hibernation sites. The species in the development of which participate fishes have very high quantitative and qualitative indices.
in Russian
New species of monogeneans of the family Ancyrocephalidae from gills of Atherina stipes from the Gulf of Mexico. P. 59-62.
The paper presents a description of three species of the genus Atherinicus Bychowsky et Nagibina, 1969 and one species of the genus Diversohamulus Bychowsky et Nagibina, 1969, rare representatives of the family Ancyrocephalidae (Bychowsky, 1937).
in Russian
Gymnophallus japonica (Trematoda, gymnophallidae), a new parasite of the far-eastern mollusc Mactra chinensis. P. 63-66.
The commercially important pelecypoda Mactra chinensis in the Bay of Peter the Great (Sea of Japan) appeared to be infected on 67% by the previously unknown metacercaria of the genus Gymnophallus. The parasite is described under the conditional name Gymnophallus japonica. Its life cycle remains to be investigated.
in Russian
A new species of nematodes, Hysterothylacium hospitum sp. n. (Nematoda: Anisakidae), from the spiral valve of blue shark. P. 66-68.
A new nematode species of the genus Hysterothylacium, H. hospitum sp. n., from the spiral valve of Prionace glauca caught off the Hawaiian Islands is described. The new species is most close to H. incurvum (Rud., 1819) Deardorff et Overstreet, 1980 from which it differs in a number of morphological characters.
in Russian
The first finding of nematodes of Aelurostrongylus pridhami and Stefanskostrongylus mascomai (Nematoda: Filaroididae) from mammals of north-eastern Asia in the USSR. P. 68-72.
Nematodes of A. pridhami (earlier recorded in Canada) from martens and S. mascomai (recorded in Spain) from shrews are reported for the first time from the USSR. Their description and figures are given.
in Russian
Hystochemical study of the contents and distribution of RNA in tissues of Ascaridae. P. 72-74.
The contents and distribution of RNA in tissues of Ascaris lumbricoides and A. suum under the effect of antihelminthic preparations (piperazine, oxygen and their combination) and with out them were studied. The effect of piperazine and oxygen as well as of their combination results in the fall of RNA in almost all tissues of helminths.
in Russian
New species of ectoparasitic nematodes from rhizosphere of Coniferales in the Primorye Territory. P. 74-78.
Three new species of plant nematodes from the rhizosphere of Coniferales in the Primorye Territory are described. Merlinius planitierum sp. n. differs from the close species M. siddiqi by the round head of stylet and by the absence of longitudinal lines on the cuticle. Tylenchorhynchus varicaudatus sp. n. differs from T. silvaticus by a short tail, truncate cephalic end with 6— 7 cuticular rings and by stylet head shape. It differs from T. georgiensis in prominent sclerotization of cephalic end, long stylet, presence of spermatheca and short tail. Helicotylenchus monstruosus sp. n. differs from H. platyurus by the size of the body and stylet and by the deformation of the cuticle on the tail; from H. depressus by concave heads of the stylet, long tail and hind position of phasmids.
in Russian
Variability of morphological characters of the female of Gulicoides toyamaruae Arnaud, 1956 (Diptera, Geratopogonidae). P. 78-81.
Females of a little known in the USSR species of bloodsucking midges, Culicoides toyamaruae Arn., are described on material collected in South Transbaikalia (Onon district of the Chita region). Their morphological variability in different parts of the range of the species (South Transbaikalia, South Primorye, Sakhalin, Japan, China) is considered.
in Russian
Book review. P. 82-83.
Summary is absent.
in Russian
Chronicle 1. P. 84-85.
Summary is absent.
in Russian
Chronicle 2. P. 85-88.
Summary is absent.
in Russian