Morphology and infraciliature of two marine species of Hartmannula (Protozoa, Ciliophora, Cyrtophorida), from scallop-farming waters off Qingdao (Tsingtao), China
Morphology and infraciliature of two marine species of Hartmannula (Protozoa, Ciliophora, Cyrtophorida), from scallop-farming waters off Qingdao (Tsingtao), China
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DOI：
10.1080/0022293031000155340
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发表时间：
2004-06
影响因子：
0.8
通讯作者：
J. Gong;Weibo Song
中科院分区：
文献类型：
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作者：
J. Gong;Weibo Song
本文报道了两种海洋纤毛虫Hartmannula derouxi nov. spec.和H.对采自青岛附近养殖沃茨水域的一种虾夷扇贝（angustipilosaDeroux和Dragesco，1968）进行了研究。该新种的特征是：体大小60-120×30-70 µm，体长椭圆形至细长，表膜上覆盖一层光滑的薄凝胶状物质;腹面动力体42-53个，其中最右侧的11-12个向顶部延伸;约30根线虫连丝;腹面约有25个收缩泡。根据青岛种群和前人的描述，提出了狭毛哈曼纽虫（Hartmannula angustipilosa）的改良诊断：体椭圆形，体大小40-80×20-50 µm;腹侧动肌20-28个，最右侧5 - 6个向顶端延伸;线虫连丝约10条;细胞右侧纵列排列的收缩泡4 - 7个。此外，对哈氏线虫属的分类进行了重新定义：哈氏线虫科（Hartmannulidae）背腹扁平，足尾状，口部结构由三个斜向排列的双动丝组成：一个口前，两个口周，每个连丝顶端有一个明显的齿，体动丝从右到左后逐渐减少，左右视野之间无间隙;足位于尾下，靠近但不被躯体动肢包围。
The living morphology, infraciliature and silverline system of two marine cyrtophorid ciliates, Hartmannula derouxi nov. spec. and H. angustipilosa Deroux and Dragesco, 1968, collected from scallop-farming waters near Qingdao (Tsingtao), China, have been investigated. The new species is characterized by: size in vivo 60–120×30–70 µm, body long oval to elongate in outline, pellicle covered with a smooth, thin layer of gel-like substance; 42–53 ventral kineties, the rightmost 11–12 of which extend apically; about 30 nematodesmata; with about 25 ventrally located contractile vacuoles. Based on the Qingdao population and on previous descriptions, an improved diagnosis of Hartmannula angustipilosa is suggested: body oval in outline, size in vivo 40–80×20–50 µm; 20–28 ventral kineties, the rightmost five to six of which extend apically; about 10 nematodesmata; four to seven contractile vacuoles arranged in a longitudinal row on right side of cell. Additionally, the diagnosis of the genus Hartmannula is re-defined: dorsoventrally flattened Hartmannulidae with tail-shaped podite, oral structure consisting of three obliquely arranged fragments of dikinetids: one preoral and two circumoral; each nematodesmata tipped with one distinct tooth; somatic kineties progressively reduced from right to left posteriad; no gap between left and right field; podite subcaudally positioned, near but not surrounded by somatic kineties.