Flores Verónica R, Brugni Norma L, Pozzi Carla M
Laboratorio de Parasitología INIBIOMA (CONICET-Universidad Nacional del Comahue), Avda Quintral 1250 (8400) Bariloche, Río Negro, Argentina.
J Parasitol. 2012 Oct;98(5):992-4. doi: 10.1645/GE-2934.1. Epub 2012 Apr 27.
A new microphallid species of Maritrema is described from the native southern river otter, Lontra provocax (Thomas). A naturally infected otter was found dead in the Nahuel Huapi National Park, Argentina. Ovigerous adult worms were recovered from the anterior portion of the intestine. Specimens of Maritrema huillini n. sp. have an unarmed genital pore and glabrous cirrus. They can be distinguished from all other species in the genus by having a long intestinal ceca extending up to three-quarters of the testes length to the level of the posterior border of the testes and a metraterm composed of a proximal sphincter, a non-muscular sac, and a distal muscular portion. This microphallid is the first species recovered from a South American eutherian host and the first digenean recorded for L. provocax.
从原产于南美的水獭（Lontra provocax (Thomas)）体内发现了一种新的微小阴茎属（Maritrema）微茎科吸虫。在阿根廷纳韦尔瓦皮国家公园发现一只自然感染的水獭死亡。从其肠道前部发现了含卵的成虫。新种惠氏微小阴茎吸虫（Maritrema huillini n. sp.）具有无武装的生殖孔和无毛的阴茎。它与该属的所有其他物种的区别在于，其肠盲囊很长，延伸至睾丸长度的四分之三，直至睾丸后缘水平，子宫末段由近端括约肌、非肌肉囊和远端肌肉部分组成。这种微茎科吸虫是从南美真兽类宿主中发现的首个物种，也是首次记录到感染水獭的复殖吸虫。
