Liu Yang, Whipps Christopher M, Nie Pin, Gu Zemao
Folia Parasitol (Praha). 2014 Dec;61(6):505-11.
During a survey on the myxosporean fauna of gibel carp Carassius auratus gibelio (Bloch) in China, a species of Myxobolus Bütschli, 1882 that did not conform to any known species was found. The species is characterised by the presence of round to ellipsoidal plasmodia of 2.6-4.0 mm in diameter in the palate of host. Mature spores are obovate in frontal view and lemon-shaped in lateral view, with the following range, mean and standard deviation of dimensions: 10.8-12.8 μm (11.7 ± 0.4 μm) long, 8.2-9.9 μm (8.9 ± 0.4 μm) wide and 6.0-7.5 μm (6.8 ± 0.3 μm) thick. Two polar capsules are pyriform, 4.0-5.5 μm (4.8 ± 0.3 μm) long by 2.9-3.6 μm (3.0 ± 0.2 μm) wide. Polar filaments are coiled, with 5 to 6 turns. A small proportion of spores possesses a short caudal process. Scanning electron microscopy revealed discoid spores with a low sutural ridge and middle bulge. The small subunit ribosomal DNA sequence of this species did not match any available sequences in GenBank. Phylogenetically, this species is sister to M. nielii (Nie et Li, 1973) and M. hearti Chen, 1998 in a Henneguya-Myxobolus clade with robust support. Given the morphological and molecular differences between this species and other Myxobolus species, we propose the name Myxobolus oralis sp. n. for this parasite from gibel carp.
在中国开展的一项关于银鲫（Carassius auratus gibelio (Bloch)）黏孢子虫动物区系的调查中，发现了一种1882年命名的黏液孢子虫属（Myxobolus Bütschli）物种，它与任何已知物种均不相符。该物种的特征是在宿主的上腭存在直径为2.6 - 4.0毫米的圆形至椭圆形的孢质团。成熟孢子正面观为倒卵形，侧面观为柠檬形，其尺寸范围、平均值和标准差如下：长10.8 - 12.8微米（11.7 ± 0.4微米），宽8.2 - 9.9微米（8.9 ± 0.4微米），厚6.0 - 7.5微米（6.8 ± 0.3微米）。两个极囊呈梨形，长4.0 - 5.5微米（4.8 ± 0.3微米），宽2.9 - 3.6微米（3.0 ± 0.2微米）。极丝呈螺旋状，有5至6圈。一小部分孢子具有短尾突。扫描电子显微镜显示孢子呈盘状，缝线脊低，中间隆起。该物种的小亚基核糖体DNA序列与GenBank中任何可用序列均不匹配。在系统发育上，该物种在一个具有有力支持的Henneguya - Myxobolus分支中是尼尔黏液孢子虫（M. nielii (Nie et Li, 1973)）和哈氏黏液孢子虫（M. hearti Chen, 1998）的姐妹种。鉴于该物种与其他黏液孢子虫物种在形态和分子上的差异，我们为此来自银鲫的寄生虫提议命名为口腔黏液孢子虫（Myxobolus oralis sp. n.）。
