精灵鼠是小型鼠鱼,体长不超过2.5厘米,是最小的鼠鱼之一。精灵鼠拥有比其他鼠鱼更流线型的身躯,它们并不是典型的“头大尾小”型鼠鱼。精灵鼠生活在巴西境内接近 Rio Jipirana 河口的 RioMadeira 河流域,在这些快速流动的河流中部常常可以发现正在群游的精灵鼠。它们喜欢群体活动,共同觅食,一个庞大的群体经常由数以千计的精灵鼠个体组成,这样的阵 Elvish mouse is a small rat fish, body length no more than 2.5 cm, is one of the smallest rat fish. Elven rats have more streamlined body than other rats, they are not typical “big tail” rat fish. Elvira live in the RioMadeira River basin in Brazil near the mouth of the Rio Jipirana, where elven rats are often found in the middle of these fast-flowing rivers. They like group activities, foraging together, a large group often consisting of thousands of Elvira individual, such array