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在春夏之交,常可在池塘及其他间歇性小水体中,看到一种虫体侧扁,全身由两瓣甲壳包被,壳上生长线明显,有壳顶,但无明显的铰合部,形似蚌壳的小动物,人们通称其为“蚌虾”。实际上它是属于节肢动物门、甲壳纲、鳃足亚纲、贝甲目(Conchostrace)的蚌壳虫(Cyzicus)。我国目前见文报道的仅6科。特征:虫体分头部与躯干部,头部前端突出为额角,其后背部常隆起形成后枕角。头部具眼,第一对触角细小,雄的略长于雌的,单肢不分节,边缘有乳状突起;第二对触角分
At the turn of the spring and summer, one can see a parasite flat in ponds and other intermittent small bodies of water. The whole body is covered with two clams, and the growth line on the shell is clear. There is a shell top but no obvious hinges Department, shaped like a small clam shell animals, people called it “clam shrimp.” In fact, it belongs to the genus Arthropoda, Crustacea, Gillidae subclass, Order of the neck (Conchostrace) of the clam shell insect (Cyzicus). My present report covers only 6 subjects. Characteristics: The body of the insect is divided into the head and the head, the front of the head protrudes to the forehead, and the back is often raised to form the occipital horn. Head with eyes, the first pair of small antennae, male slightly longer than the female, single limbs without joints, the edge of the milky process; the second pair of antennae