Green swordtail
Xiphophorus hellerii
Green swordtails have elongated, narrow bodies that are flattened on the sides. They also have large …
Freshwater fish spend part or all of their lives in fresh water, such as rivers and lakes, with a salinity of less than 1.05%.
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Xiphophorus hellerii
Green swordtails have elongated, narrow bodies that are flattened on the sides. They also have large …
Ptychocheilus oregonensis
The mouth of the northern squawfish is terminal and large, extending backward beyond the anterior margin …
Megalops atlanticus
The body of the tarpon is elongated and contracted, covered with large major scales and a …