对长毛对虾Penaeus penicillatus特汉虫病的症状、病原体特征、组织病理研究结果表明,该病原体——对虾特汉虫(Thelohania penaei)孢子椭圆形或梨形,6.6×2.3—4.1μm。孢子发育过程具有年幼的营养体和产孢体、孢子母细胞和孢囊。病症:病虾卵巢被对虾特汉虫入侵并被取代变白,虫体扩散病虾全身发白,摄食大降而失去正常生理机能,导致死亡。雄性虾不受感染。病情延续三个月。 The symptom, pathogen characteristic and histopathology of Penaeus penicillatus hawkensis showed that the pathogen, Thelohania penaei, was oval or pear-shaped, 6.6 × 2.3-4.1μm. Spore development has young vegetative and sporogenous bodies, sporocysts and cysts. Illness: The diseased shrimp ovary was invaded by the shrimp special worm and replaced by white, shrimp infected body spread white body whitening, loss of food intake and loss of normal physiological function, leading to death. Male shrimp are not infected. The condition lasted three months.