日本産昆虫に寄生する簇虫についてVI
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In the previous paper (V.) the writer described Gregarina diestrammenae Hoside parasitizing in the intestine of Diestrammena japonica Karny. This paper deals with another new species, Gregarina monoducta n. sp. found in the same host. Diagnosis of Gregarina monoducta n. sp.: Sporonts biassociative, obese, broadly ovoidal to subglobular. Maximum length of associations 1052μ. Length of sporonts 400-470μ, width 300-350μ. Average ratio LP: TL=1: 2.8, WP: WD=1: 0.8 (primite), LP: TL=1: 3.2, WP: WD=1: 1.1 (satellite). Primite: Protomerite broadly discoidal, 2 to 2.5 times as wide as high, widest at anterior portion, nearly flattened or a little concaved apically. Deep constriction at septum. Deutomerite subglobular, widest at middle, broadly rounded behind. Satellite: Generally longer than the primite, ovoidal in shape. Protomerite a little shorter than primite, twice as wide as high, and into a depression at anterior end primite fits. Constriction at septum not so deep. Deutomerite widest at shoulder, tapering gradually to a broadly rounded posterior end. Ectocyte thin, fine longitudinal striations seen in epicyte. Endocyte dense, black in protomerite and yellow orange in deutomerite. Nucleus generally spherical, 70μ in average diameter, sometimes ellipsoidal, with many small karyosomes. Youngest trophozoite 28×22μ, subglobular. Two types of cephalont present, cylindrical and ovoidal. Epimerite a small rounded knob with a very short stalk. Cysts spherical 400〜500μ in diameter. Central mass generally 390〜330μ diameter. One spore duct only, 2.5〜2.8mm in length. Spores discharged in chains, cylindrical 3 by 1.2μ. Host: Diestrammena japonica Karny. Habitat: Intestine. Localities: Narutomura, Tabusemati, Yamaguti Pref.
- 社団法人日本動物学会の論文
- 1953-05-15
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