Gu Xiao-Hong, Yan Xiao-Fei, Chen Hui-Xia, Li Liang
Hebei Collaborative Innovation Center for Eco-Environment, Hebei Key Laboratory of Animal Physiology, Biochemistry and Molecular Biology, College of Life Sciences, Hebei Normal University, Shijiazhuang, 050024, Hebei, P. R. China.
Xinjiang Key Laboratory for Ecological Adaptation and Evolution of Extreme Environment Biology, College of Life Sciences, Xinjiang Agricultural University, Urumqi, 830052, Xinjiang Uighur Autonomous Region, P. R. China.
Syst Parasitol. 2024 Jul 24;101(4):52. doi: 10.1007/s11230-024-10176-x.
Abbreviata baltazardi Chabaud, 1953 (Nematoda: Physalopteridae) is a hitherto poorly known parasitic nematode species reported from Phrynocephalus helioscopus Pallas (Squamata: Agamidae) in Iran. The current knowledge on the morphology of A. baltazardi is still very limited. In the present study, the detailed morphology of A. baltazardi was studied using light microscopy and, for the first time, scanning electron microscopy, based on newly collected specimens from the yarkand toad-headed agama P. axillaris Blanford Pallas (Squamata: Agamidae) in China. Some erroneous or previously unreported morphological features of A. baltazardi were observed using SEM, which include the presence of one large semicircular protrusion and 20-30 denticles on each pseudolabium, the absence of precloacal medioventral papilla in some individuals and the presence of 4-5 postcloacal medioventral papillae in males. SEM observations also clearly showed the detailed morphology of deirids, cloacal ornamentation, caudal papillae, vulva and egg. Abbreviata baltazardi represents the first species of Abbreviata Travassos, 1920 reported in China.
巴尔塔扎尔短体线虫（Abbreviata baltazardi Chabaud，1953）（线虫纲：泡翼科）是一种迄今鲜为人知的寄生线虫物种，在伊朗曾报道于草原沙蜥（Phrynocephalus helioscopus Pallas）（有鳞目：鬣蜥科）体内。目前关于巴尔塔扎尔短体线虫形态学的了解仍然非常有限。在本研究中，基于从中国叶尔羌沙蜥（Phrynocephalus axillaris Blanford Pallas）（有鳞目：鬣蜥科）新采集的标本，利用光学显微镜并首次使用扫描电子显微镜对巴尔塔扎尔短体线虫的详细形态进行了研究。利用扫描电子显微镜观察到了巴尔塔扎尔短体线虫一些错误的或先前未报道的形态特征，包括每个假唇上有一个大的半圆形突起和20 - 30个小齿，部分个体无泄殖腔前腹中乳头，雄性有4 - 5个泄殖腔后腹中乳头。扫描电子显微镜观察还清晰地显示了颈乳突、泄殖腔纹饰、尾乳头、阴门和虫卵的详细形态。巴尔塔扎尔短体线虫是2020年特拉瓦索斯（Travassos）报道的短体线虫属（Abbreviata）在中国的首个物种。
