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topminnow, poeciliid fish, poeciliid, live-bearer | small usually brightly-colored viviparous surface-feeding fishes of fresh or brackish warm waters; often used in mosquito control | |
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swordtail, helleri, topminnow, Xyphophorus helleri | freshwater fish of Central America having a long swordlike tail; freshwater fish of Central America having a long swordlike tail; popular aquarium fish ❲Xyphophorus helleri❳ |