Department of Zoology, Sikkim University, Gangtok, Sikkim, India.
National Academy of Sciences (NASI) Honorary Scientist, Lucknow, Uttar Pradesh, India.
Adv Exp Med Biol. 2024;1454:323-347. doi: 10.1007/978-3-031-60121-7_9.
Amphistomes, commonly referred to as 'stomach' or 'rumen' flukes because of the localization of these flukes in the stomach of ruminants, are digenetic trematodes distinguished by the absence of an oral sucker and the position of the ventral sucker or acetabulum at the posterior end of the body. The body is characterized by a leaf-like fleshy structure, pink or red with a large posterior sucker. Amphistomes are an important group of parasites since they cause 'amphistomiasis' (variously known as paramphistomosis/amphistomosis), a serious disease of great economic importance in ruminants worldwide. These parasites have a broad spectrum of definitive hosts together with a wide geographical distribution. Though they form a continuous evolutional lineage from fishes to mammals, amphistomes mainly inhabit the rumen and reticulum of ruminant mammals, while some species occur in the large intestine or parenteric sites of ruminants, pigs, equines and man.
双腔科吸虫，通常被称为“胃”或“瘤胃”吸虫，因为这些吸虫在反刍动物的胃中定位，是双腔科吸虫，其特征是没有口吸盘和腹吸盘或吸着盘位于身体后端。身体的特点是有一个叶状的肉质结构，粉红色或红色，有一个大的后吸盘。双腔科吸虫是一组重要的寄生虫，因为它们引起“双腔科吸虫病”（又称副双腔科吸虫病/双腔科吸虫病），这是一种在全世界反刍动物中具有重要经济意义的严重疾病。这些寄生虫有广泛的终末宿主和广泛的地理分布。尽管它们从鱼类到哺乳动物形成了一个连续的进化谱系，但双腔科吸虫主要栖息在反刍动物的瘤胃和网胃中，而有些物种则存在于反刍动物、猪、马和人的大肠或肠外部位。
