Quintana Manuel G, de Núñez Margarita Ostrowski
Museo Argentino de Ciencias Naturales "Bernardino Rivadavia", Av. Angel Gallardo 470, C1405 DJR, Buenos Aires, Argentina.
J Parasitol. 2014 Dec;100(6):805-11. doi: 10.1645/13-379.1.
Pseudosellacotyla lutzi ( Freitas, 1941), at present included in the Faustulidae, is redescribed, and its life cycle was resolved experimentally. The prosobranch snail Aylacostoma chloroticum Hylton Scott (Thiaridae), collected in the Yacyretá Dam, Province of Misiones, Argentina, was found naturally infected with cercariae that lacked pigmented eyespots, and possessed 7 pairs of penetration glands, 8 pairs of flame cells, and a V-shaped excretory vesicle. The cercariae developed in oval cysts, which were found on fin rays, vertebrae, and spines of poeciliid and tetragonopterid fish species. Adults were obtained experimentally from Hoplias malabaricus (Erythrinidae) infected with metacercariae from albino Gymnocorymbus ternetzi (Tetragonopteridae), which had been exposed to emerging cercariae. Adults were also found in naturally infected H. malabaricus collected in the Yacyretá Dam. The morphology of the cercariae, and the characteristics of the life cycle show that P. lutzi should be included in the Cryptogonimidae.
重新描述了目前归入法氏吸虫科的卢氏拟塞拉克吸虫（Pseudosellacotyla lutzi (Freitas, 1941)），并通过实验解析了其生活史。在阿根廷米西奥内斯省亚西雷塔大坝采集的前鳃亚纲蜗牛绿纹艾氏螺（Aylacostoma chloroticum Hylton Scott，豆螺科）被发现自然感染了尾蚴，这些尾蚴没有色素沉着的眼点，有7对穿刺腺、8对焰细胞和一个V形排泄囊。尾蚴在椭圆形囊中发育，这些囊在食蚊鱼科和栉鳍鱼科鱼类的鳍条、椎骨和棘上被发现。成虫是通过实验从感染了来自白化三角魮（Gymnocorymbus ternetzi，栉鳍鱼科）的后尾蚴的马拉巴霍氏脂鲤（Hoplias malabaricus，狗脂鲤科）中获得的，这些三角魮暴露于逸出的尾蚴。在亚西雷塔大坝采集的自然感染的马拉巴霍氏脂鲤中也发现了成虫。尾蚴的形态以及生活史特征表明，卢氏拟塞拉克吸虫应归入隐殖科。
