The Research Bulletin of the Meguro Parasitological Museum No. 3 (March 1970)

• CONTENTS
  
  
  • A new blood fluke Aporocotyle theragrae n. sp. (Digenetic Trematode: Aporocotylidae) from a marine fish, Theragra chalcogramma.
    A. Ichihara ----- pp. 1-4
    
    Aporocotyle theragrae n. sp. (Digenetic Trematode: Aporocotylidae) is described from the blood vessel of an Alaskan pollock, Theragra chalcogramma (Pallas) from the adjacent Seas of Hokkaido. It differs from the four already known species in body shape, arrangemant of body spine groups, ratio of esophageal length to body length, undulating caeca, and vas deferans being looped.
    
    
  • Plectognathotrema (Alloplectognathotrema) Tsushimaense n. subg., n. sp. (Trematoda: Cephaloporidae, Plectognathotrematinae n. subfam.), from intestine of marine fish, Navodon modestus.
    Sh. Kamegai ----- pp. 5-11
    
    Plectognathotrema (Alloplectognathotrema) Tsushimaense is described from the intestine of Navodon modestus caught near Tsushima Island, Sea of Japan. Eight adhesive organs sui generis were found in the acetabulum. Cephaloporidae Travassos, 1934 to which this parasite belongs is briefly reviewed. Plectognathotrema Layman was placed in a new subfamily Plectognathotrematinae.
    
    
  • A preliminary study on the disc electrophoretic patterns of Paragonimus kellicotti Ward, 1908 adult worms.
    K. Yoshimura, Y. Hishinuma & M. Sato ----- pp. 12-17
    
    Disc electrophoretic patterns were prepared from a whole worm saline extract obtained from 2 adult worms of Paragonimus kellicotti. A minimum of 21 distinct protain bands was separated, 19 of which were highly reproducible, i. e. identified from 90-100% of gels. Densitometric tracings of the electrophoretic patterns always yielded 8 prominent peaks which characterized this species. The patterns of P. kellicotti. were distinctly differnt not only from those of P. westermani, P. ohirai and P. iloktsuenensis but from that of P. miyazaki. Major differnces in patterns between P. kellicotti and P. miyazaki are observed in the mid-gel region while the two species have similar pattaerns at both ends of the gel column.
    
    
  • A preliminary report on the experimantal infection of Oncomelania nosophora (Robson, 1915) with Paragonimus sadoensis Miyazaki et al., 1968.
    S. C. Hembree, E. Miyasaka & J. E. Williams ----- pp. 18-20
    
    Previous workers have successfully infected the small Oncomelania nosophora with 4 species of Paragonimus. Therefore, this snail was exposed to P. sadoensis. This exposure produced a 69.5% rate of infection. No morphological changes could be observed in the cercariae which had shed from O. nosophora.
    
    
  • On Diplozoon nipponicum Goto, 1891. Part III. The seasonal development of the reproductive organs of Diplozoon nipponicum parasitic on Cyprinus carpio.
    Sa. Kamegai ----- pp. 21-25
    
    137 specimens of Diplozoon nipponicum parasitic on Cyprinus carpio collected during two years from 1965 to 1967 were examined. It may be concluded that the development of the reproductive organs begins in autumn in testis and is completed by the end of winter, while the ovary willbe completed at the beginning of the spring, and the oviposition occurs mainly in summer.
    
    
  • On some nematodes of birds from India. Part 1. Filariidae and Dipetaronematidae.
    D. S. Jairajpuri & A. H. Siddiqi ----- pp. 26-32
    
    A new genus and new species, Farooqifilaria pecta belonging to the family Filariidae is reported from the heart of Anser indicus (Latham). It resembles Tetracheilonema in having 4 lips, undivided esophagus and a functional anus, but differs in the absence of a chitinous ring and a buccal capsule and in having a short muscular esophagus, annulated cuticle, straight tail and vulva just behind the nerve ring. Two new genara, Francolinema and Francofilaria from Francolinus pondicerinus (Gmelin) and a new species, Aproctoides crassum from Sturnus contra L., are reported under the family Dipetalonematidae. Francolinema n. gen. is close to Lemdana but differs by its smaller body size, tail and spicule ratio. Francofilaria n. gen., resembles Cardiofilaria but differs in the absence of a cuticular thicking at base of stoma, number and arrangement of cephalic papillae, esophagus divided into muscular and glandular portions and the absence of cloacal papillae.
    
    
  • Helminth parasites of a wildcat in Japan.
    M. Machida ----- pp. 33-36
    
    From a wildcat, Prionailurus bengalensis manchurica, captured on the Tsushima Island on January, 1966, the following six species of helminths were obtained: Pharyngostomum cordatum (Trermatoda), Diphyllobothrium mansoni, Mesocestoides sp. Hydatigera taeniaeformis (Cestoda), Toxocara cati (Nematoda) and Porrorchis sp. (Acanthocephala). This is the first report on the helminths of the wild cat in Japan.
    
    
  • 渦虫類の寄生虫 特に淡水棲三岐腸類の寄生虫数種の記録
    Parasites of Turbellarians: Records of several species of endoparasites of freshwater planarians.(in Japanese)
    M. Kawakatsu ----- pp. 37-47
    
    The occurrences of several species of the endoparasites from some freshwater planarian species are recorded in this paper. They are as follows:
    1) Glegarinid species found in the parenchyma as well as in the digestive tract of the Japanese freshwater planarians (Pls. I, Figs. A-F, II, Figs. A-F, Ill, Figs. A-G). The encysted specimens of the glegarinid species were detected in some slides of Dugesia japonica Ichikawa et Kawakatsu, Phagocata iwamai Ichikawa et Kawakatsu, Polycelis schmidti (Zabusov), Dendrocoelopsis lacteus Ichikawa et Okugawa and Dendrocoelopsis ezensis Ichikawa et Okugawa. The glegarinid species recorded in the present paper were detected in the slides of Dugesia japonica from Nikko City and of Dendrocoelopsis lacteus from Nayoro City. The encysted specimens are spherical and/or ovoid in shape. They are 120 to 310 μ in diametre. This species is closely related to an European glegarinid species Lankesteria planariae.
    2) Glegarinid species found in the pharynx tissue of Dugesia lindbergi De Beauchamp from the vicinity of Rawalpindi in West Pakistan (Pl. II, Fig. G). Only three encysted specimens of this glegarinid species were detected in my slides. They are spherical in shape and are 50 to 60 μ in diametre. There is a slight doubt whether this species may not be a glegarinid species, i. e., it may be a trematode cyst.
    3) Ciliate species found in the digestive tract of the Japanese freshwater planarian, Phagocata iwamai Ichikawa et Kawakatsu from Wakkanai City in Hokkaido (Pl. II, Figs. H-I). A considerable number of this ciliate species was detected in my slides. They are spindle form in shape and are 60 to 80 μ in long axis and about 20 μ in short axis. The species may be related to an European endoparasitic ciliate species Sieboldiellina planariarum.
    4) Nematode species found in the pharynx tissue of the Japanese freshwater planarians (Pl. IV, Figs. A-D). The endoparasitic nematode species was found in the muscle layers of the pharynx of Dugesia japonica Ichikawa et Kawakatsu, Phagocata vivida (ljima et Kaburaki), Polycelis sapporo (Ijima et Kaburaki) and Polycelis schmidti (Zabusov) from several localities. The nematode species recorded in the present paper were detected in the slides of Dugesia japonica from Matsuyama City. Every specimen of planarians examined was infected. This nematode species attains a length of 300 to 600 μ. About 10 to 20 specimens of nematode species were found in one pharynx of the host worm.
    5) Nematode species found in the pharynx tissue of Dugesia gonocephala (Duges) from Strasbourg in France (Pl. IV, Figs. E-G). Many specimens of this nematode species were detected in my slides. The incidence of infection was high in this population. They are small in size and attain a length of 90 to 150 μ. About 30 nematode specimens were found in one pharynx of the host worm.
    Every slide used in this study is retained in Professor Kawakatsu's room of Fuji Women's College, Sapporo.
    The incidence of a natural infection of the glegarinid species found in the Dendrocoelopsis lacteus population in Nayoro City was also investigated. It was observed in this locality that the total number of the infected specimens of planarians has largely increased according to the increment of the pollution of water where planarians inhabited (Table I). In the laboratory cultures the infected planarians were eventually disintegrated.